无

.gitignore

@@ -0,0 +1,14 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx

.idea/.gitignore

@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml

.idea/.name

@@ -0,0 +1 @@
+PENGPERSONAL

.idea/compiler.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="11" />
+  </component>
+</project>

.idea/gradle.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="GRADLE" />
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/bms" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

.idea/jarRepositories.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="BintrayJCenter" />
+      <option name="name" value="BintrayJCenter" />
+      <option name="url" value="https://jcenter.bintray.com/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="Google" />
+      <option name="name" value="Google" />
+      <option name="url" value="https://dl.google.com/dl/android/maven2/" />
+    </remote-repository>
+  </component>
+</project>

.idea/misc.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="11" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>

.idea/modules/modules.plantuml

@@ -0,0 +1,32 @@
+@startuml
+
+title __PENGPERSONAL's Class Diagram__\n
+
+  namespace com.zhang.pengpersonal {
+    class com.zhang.pengpersonal.ExampleInstrumentedTest {
+    }
+  }
+  
+
+  namespace com.zhang.pengpersonal {
+    class com.zhang.pengpersonal.ExampleUnitTest {
+    }
+  }
+  
+
+  namespace com.zhang.pengpersonal {
+    class com.zhang.pengpersonal.MainActivity {
+    }
+  }
+  
+
+
+
+right footer
+
+
+PlantUML diagram generated by SketchIt! (https://bitbucket.org/pmesmeur/sketch.it)
+For more information about this tool, please contact philippe.mesmeur@gmail.com
+endfooter
+
+@enduml

PENGPERSONAL.plantuml

@@ -0,0 +1,29 @@
+@startuml
+
+title __PENGPERSONAL's Component Diagram__\n
+
+  component "PENGPERSONAL.bms.unitTest" {
+        [PENGPERSONAL.bms.main]
+    component "PENGPERSONAL.bms.main" {
+          [PENGPERSONAL.bms.androidTest]
+      component "PENGPERSONAL.bms.androidTest" {
+            [PENGPERSONAL.bms]
+      }
+
+
+    }
+
+
+  }
+
+
+
+
+right footer
+
+
+PlantUML diagram generated by SketchIt! (https://bitbucket.org/pmesmeur/sketch.it)
+For more information about this tool, please contact philippe.mesmeur@gmail.com
+endfooter
+
+@enduml

app/.gitignore

@@ -0,0 +1 @@
+/build

app/build.gradle

@@ -0,0 +1,33 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 29
+    buildToolsVersion "29.0.3"
+
+    defaultConfig {
+        applicationId "com.zhang.pengpersonal"
+        minSdkVersion 14
+        targetSdkVersion 29
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: "libs", include: ["*.jar"])
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.2'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+
+}

app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/com/zhang/pengpersonal/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.zhang.pengpersonal;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.zhang.pengpersonal", appContext.getPackageName());
+    }
+}

app/src/androidTest/java/com/zhang/pengpersonal/pengpersonal.plantuml

@@ -0,0 +1,21 @@
+@startuml
+
+title __PENGPERSONAL's Class Diagram__\n
+
+  namespace com.zhang.pengpersonal {
+    class com.zhang.pengpersonal.ExampleInstrumentedTest {
+        + useAppContext()
+    }
+  }
+  
+
+
+
+right footer
+
+
+PlantUML diagram generated by SketchIt! (https://bitbucket.org/pmesmeur/sketch.it)
+For more information about this tool, please contact philippe.mesmeur@gmail.com
+endfooter
+
+@enduml

app/src/main/AndroidManifest.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.zhang.pengpersonal">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/com/zhang/pengpersonal/MainActivity.java

@@ -0,0 +1,14 @@
+package com.zhang.pengpersonal;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.os.Bundle;
+
+public class MainActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+    }
+}

app/src/main/java/com/zhang/pengpersonal/pengpersonal.plantuml

@@ -0,0 +1,21 @@
+@startuml
+
+title __PENGPERSONAL's Class Diagram__\n
+
+  namespace com.zhang.pengpersonal {
+    class com.zhang.pengpersonal.MainActivity {
+        # onCreate()
+    }
+  }
+  
+
+
+
+right footer
+
+
+PlantUML diagram generated by SketchIt! (https://bitbucket.org/pmesmeur/sketch.it)
+For more information about this tool, please contact philippe.mesmeur@gmail.com
+endfooter
+
+@enduml

app/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>

app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Hello World!"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

app/src/main/res/values/colors.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#6200EE</color>
+    <color name="colorPrimaryDark">#3700B3</color>
+    <color name="colorAccent">#03DAC5</color>
+</resources>

app/src/main/res/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">PENGPERSONAL</string>
+</resources>

app/src/main/res/values/styles.xml

@@ -0,0 +1,10 @@
+<resources>
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+</resources>

app/src/test/java/com/zhang/pengpersonal/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package com.zhang.pengpersonal;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}

app/src/test/java/com/zhang/pengpersonal/pengpersonal.plantuml

@@ -0,0 +1,21 @@
+@startuml
+
+title __PENGPERSONAL's Class Diagram__\n
+
+  namespace com.zhang.pengpersonal {
+    class com.zhang.pengpersonal.ExampleUnitTest {
+        + addition_isCorrect()
+    }
+  }
+  
+
+
+
+right footer
+
+
+PlantUML diagram generated by SketchIt! (https://bitbucket.org/pmesmeur/sketch.it)
+For more information about this tool, please contact philippe.mesmeur@gmail.com
+endfooter
+
+@enduml

bms/.gitignore

@@ -0,0 +1 @@
+/build

bms/build.gradle

@@ -0,0 +1,33 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 29
+    buildToolsVersion "29.0.3"
+
+    defaultConfig {
+        applicationId "com.zhang.bms"
+        minSdkVersion 14
+        targetSdkVersion 29
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: "libs", include: ["*.jar"])
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.2'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+
+}

bms/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

bms/src/androidTest/java/com/zhang/bms/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.zhang.bms;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.zhang.bms", appContext.getPackageName());
+    }
+}

bms/src/main/AndroidManifest.xml

@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.zhang.bms">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".ui.ReturnSuccessActivity"></activity>
+        <activity
+            android:name=".ui.BorrowManageActivity"
+            android:theme="@style/ThemeWithoutAnim" />
+        <activity android:name=".ui.ShowBorrowActivity" />
+        <activity android:name=".ui.BorrowSuccessActivity" />
+        <activity android:name=".ui.FavoriteActivity" />
+        <activity android:name=".ui.Change_synopsisActivity" />
+        <activity android:name=".ui.InputUsernameActivity" />
+        <activity android:name=".ui.ForgetPassActivity" />
+        <activity android:name=".ui.ChangePasswordActivity" />
+        <activity
+            android:name=".ui.PersonalCenterActivity"
+            android:theme="@style/ThemeWithoutAnim" />
+        <activity android:name=".ui.BookActivity" />
+        <activity android:name=".ui.SearchResultActivity" />
+        <activity
+            android:name=".ui.ShowBooksActivity"
+            android:theme="@style/ThemeWithoutAnim" />
+        <activity android:name=".ui.ManageBookDetailsActivity" />
+        <activity android:name=".ui.ManageUserDetailsActivity" />
+        <activity
+            android:name=".ui.UserManageActivity"
+            android:theme="@style/ThemeWithoutAnim" />
+        <activity android:name=".ui.ManageIndexActivity" />
+        <activity android:name=".ui.AddBookActivity" />
+        <activity
+            android:name=".ui.BookManageActivity"
+            android:theme="@style/ThemeWithoutAnim" />
+        <activity android:name=".ui.RegisterActivity" />
+        <activity android:name=".ui.LoginActivity" />
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

bms/src/main/java/com/zhang/bms/MainActivity.java

@@ -0,0 +1,84 @@
+package com.zhang.bms;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.os.CountDownTimer;
+import android.os.Handler;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.TextView;
+
+import com.zhang.bms.ui.LoginActivity;
+import com.zhang.bms.ui.ManageIndexActivity;
+import com.zhang.bms.ui.ShowBooksActivity;
+
+public class MainActivity extends AppCompatActivity {
+    private TextView tv;
+    private Runnable mRunnable;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        //取消状态栏
+        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
+        tv = findViewById(R.id.countdown);
+        final SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+        SharedPreferences.Editor editor = sharedPreferences.edit();
+
+        MyCountDownTimer myCountDownTimer = new MyCountDownTimer(6000,1000); // 5000代表5秒后进入主页面
+        myCountDownTimer.start();
+        handler.postDelayed(mRunnable = new Runnable() {
+            @Override
+            public void run() {
+                if (!sharedPreferences.getString("username","").equals("")){
+                        Intent intent = new Intent(MainActivity.this, ShowBooksActivity.class);
+                        startActivity(intent);
+                }else {
+                    Intent intent = new Intent(MainActivity.this, LoginActivity.class);
+                    startActivity(intent);
+                }
+
+                finish();
+            }
+        },6000);
+        tv.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                if (!sharedPreferences.getString("username","").equals("")){
+                        Intent intent = new Intent(MainActivity.this, ShowBooksActivity.class);
+                        startActivity(intent);
+                }else {
+                    Intent intent = new Intent(MainActivity.this, LoginActivity.class);
+                    startActivity(intent);
+                }
+                finish();
+                if(mRunnable!=null){  // 判断消息handler消息如果消息不是空就把handler消息remove 清除掉 这样防止点过 跳过 之后还会出现在次开启一个Activity
+                    handler.removeCallbacks(mRunnable);
+                }
+            }
+        });
+
+
+
+    }
+    private Handler handler = new Handler();
+    class MyCountDownTimer extends CountDownTimer {
+
+        public  MyCountDownTimer(long millisInFuture, long countDownInterval){
+            super(millisInFuture,countDownInterval);
+
+        }
+        @Override
+        public void onTick(long millisUntilFinished) {
+            tv.setText("跳过 "+millisUntilFinished /1000);
+        }
+
+        @Override
+        public void onFinish() {
+            tv.setText("正在跳转");
+        }
+    }
+}

bms/src/main/java/com/zhang/bms/bms.plantuml

@@ -0,0 +1,30 @@
+@startuml
+
+title __BMS's Class Diagram__\n
+
+  namespace com.zhang.bms {
+    class com.zhang.bms.MainActivity {
+        - handler : Handler
+        - mRunnable : Runnable
+        - tv : TextView
+        # onCreate()
+    }
+  }
+  
+
+
+  
+
+  com.zhang.bms.MainActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.MainActivity +-down- com.zhang.bms.MainActivity.MyCountDownTimer
+  com.zhang.bms.MainActivity.MyCountDownTimer -up-|> android.os.CountDownTimer
+
+
+right footer
+
+
+PlantUML diagram generated by SketchIt! (https://bitbucket.org/pmesmeur/sketch.it)
+For more information about this tool, please contact philippe.mesmeur@gmail.com
+endfooter
+
+@enduml

bms/src/main/java/com/zhang/bms/control/BookTableHelper.java

@@ -0,0 +1,194 @@
+package com.zhang.bms.control;
+
+import android.content.ContentValues;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.widget.ArrayAdapter;
+
+import com.zhang.bms.model.Book;
+
+import java.util.ArrayList;
+
+public class BookTableHelper {
+    //添加图书
+    public boolean AddBook(DBHelper dbHelper,Book book){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        ContentValues values = new ContentValues();
+        values.put("ISBN",book.getISBN());
+        values.put("bookname",book.getBookname());
+        values.put("author",book.getAuthor());
+        values.put("press",book.getPress());
+        values.put("publicationtime",book.getPublicationtime());
+        values.put("category",book.getCategory());
+        values.put("synopsis",book.getSynopsis());
+        values.put("inventory",book.getinventory());
+        values.put("page",book.getPage());
+        long id = db.insert("book",null,values);
+        db.close();
+        boolean flag;
+        if (id != -1){
+            flag = true;
+        }else {
+            flag = false;
+        }
+        return flag;
+    }
+    //图书grid展示
+    public ArrayList<Book> BookGrid(DBHelper dbHelper){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        Cursor cursor = db.query("book",new String[]{"id","bookname","author","inventory"},
+                null,null,null,null,"id desc");
+        ArrayList<Book> list = new ArrayList<>();
+        if (cursor != null && cursor.getCount() > 0){
+            while (cursor.moveToNext()){
+                String id = cursor.getString(cursor.getColumnIndex("id"));
+                String bookname = cursor.getString(cursor.getColumnIndex("bookname"));
+                String author = cursor.getString(cursor.getColumnIndex("author"));
+                int inventory = cursor.getInt(cursor.getColumnIndex("inventory"));
+                Book book = new Book(id,bookname,author,inventory,2);
+                list.add(book);
+            }
+        }
+        db.close();
+        return list;
+    }
+    //图书管理列表
+    public ArrayList<Book> BookList(DBHelper dbHelper){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        Cursor cursor = db.query("book",new String[]{"id","bookname","author","category"},
+                null,null,null,null,"id desc");
+        ArrayList<Book> list = new ArrayList<>();
+        if (cursor != null && cursor.getCount() > 0){
+            while (cursor.moveToNext()){
+                String id = cursor.getString(cursor.getColumnIndex("id"));
+                String bookname = cursor.getString(cursor.getColumnIndex("bookname"));
+                String author = cursor.getString(cursor.getColumnIndex("author"));
+                String category = cursor.getString(cursor.getColumnIndex("category"));
+                Book book = new Book(id,bookname,author,category);
+                list.add(book);
+            }
+        }
+        db.close();
+        return list;
+    }
+    //图书管理详情页
+    public ArrayList<Book> BookDetails(DBHelper dbHelper,String bid){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        Cursor cursor = db.query("book",new String[]{"ISBN","bookname","author","press",
+                "publicationtime","category","synopsis","inventory","page"},"id = ?",
+                new String[]{bid + ""},null,null,null);
+        ArrayList<Book> list = new ArrayList<>();
+        if (cursor != null && cursor.getCount() > 0){
+            while (cursor.moveToNext()){
+                String ISBN = cursor.getString(cursor.getColumnIndex("ISBN"));
+                String bookname = cursor.getString(cursor.getColumnIndex("bookname"));
+                String author = cursor.getString(cursor.getColumnIndex("author"));
+                String press = cursor.getString(cursor.getColumnIndex("press"));
+                String publicationtime = cursor.getString(cursor.getColumnIndex("publicationtime"));
+                String category = cursor.getString(cursor.getColumnIndex("category"));
+                String synopsis = cursor.getString(cursor.getColumnIndex("synopsis"));
+                int inventory = cursor.getInt(cursor.getColumnIndex("inventory"));
+                int page = cursor.getInt(cursor.getColumnIndex("page"));
+                Book book = new Book(ISBN,bookname,author,press,publicationtime,category,synopsis,inventory,page);
+                list.add(book);
+            }
+        }
+        db.close();
+        return list;
+    }
+    //删除图书
+    public boolean DeleteBook(DBHelper dbHelper,String id){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        int flag = db.delete("book","id=?",new String[]{id + ""});
+        db.close();
+        boolean result;
+        if (flag == -1){
+            result = false;
+        }else {
+            result = true;
+        }
+        return result;
+    }
+    //修改图书
+    public boolean UpdateBook(DBHelper dbHelper,String id,String ISBN,String bookname,String author,String press,String publicationtime,
+                              String categoty,String synopsis,int inventory,int page){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        ContentValues values = new ContentValues();
+        values.put("ISBN",ISBN);
+        values.put("bookname",bookname);
+        values.put("author",author);
+        values.put("press",press);
+        values.put("publicationtime",publicationtime);
+        values.put("category",categoty);
+        values.put("synopsis",synopsis);
+        values.put("inventory",inventory);
+        values.put("page",page);
+        int flag = db.update("book",values,"id = ?",new String[]{id});
+        boolean result;
+        if (flag == -1){
+            result = false;
+        }else {
+            result = true;
+        }
+        db.close();
+        return result;
+    }
+    //图书搜索功能
+    public ArrayList<Book> SearchBook(DBHelper dbHelper,String searcher){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        Cursor cursor = db.query("book",new String[]{"id","bookname","author","inventory"},
+                "bookname like ? or author like ?",new String[]{"%"+searcher+"%","%"+searcher+"%"},
+                null,null,null);
+        ArrayList<Book> list = new ArrayList<>();
+        if (cursor != null && cursor.getCount() > 0){
+            while (cursor.moveToNext()){
+                String bid = cursor.getString(cursor.getColumnIndex("id"));
+                String bookname = cursor.getString(cursor.getColumnIndex("bookname"));
+                String author = cursor.getString(cursor.getColumnIndex("author"));
+                int inventory = cursor.getInt(cursor.getColumnIndex("inventory"));
+                Book book = new Book(bid,bookname,author,inventory,2);
+                list.add(book);
+            }
+        }
+        db.close();
+        return list;
+    }
+    //已收藏图书查询
+    public ArrayList<Book> SearchCollection(DBHelper dbHelper,String searcher){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        Cursor cursor = db.rawQuery("select * from book where id in ("+searcher+")",null);
+        ArrayList<Book> list = new ArrayList<>();
+        if (cursor != null && cursor.getCount() > 0){
+            while (cursor.moveToNext()){
+                String id = cursor.getString(cursor.getColumnIndex("id"));
+                String bookname = cursor.getString(cursor.getColumnIndex("bookname"));
+                String author = cursor.getString(cursor.getColumnIndex("author"));
+                int inventory = cursor.getInt(cursor.getColumnIndex("inventory"));
+                Book book = new Book(id,bookname,author,inventory,2);
+                list.add(book);
+            }
+        }
+        db.close();
+        return list;
+    }
+    //借阅图书/还书
+    public void BorrowBook(DBHelper dbHelper,String bid,int new_inventory){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        ContentValues values = new ContentValues();
+        values.put("inventory",new_inventory);
+        db.update("book",values,"id=?",new String[]{bid});
+        db.close();
+    }
+    //查询馆藏
+    public int FindInventory(DBHelper dbHelper,String bid){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        Cursor cursor = db.rawQuery("select inventory from book where id = ?",new String[]{bid});
+        int number = 0;
+        if (cursor != null && cursor.getCount() > 0){
+            while (cursor.moveToNext()){
+                number = cursor.getInt(0);
+            }
+        }
+        return number;
+    }
+}

bms/src/main/java/com/zhang/bms/control/BorrowTableHelper.java

@@ -0,0 +1,80 @@
+package com.zhang.bms.control;
+
+import android.content.ContentValues;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+
+import com.zhang.bms.model.Borrow;
+
+import java.util.ArrayList;
+
+public class BorrowTableHelper {
+    //新增借阅信息
+    public boolean AddBorrow(DBHelper dbHelper, Borrow borrow){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        ContentValues values = new ContentValues();
+        values.put("botime",borrow.getBotime());
+        values.put("bookid",borrow.getBookid());
+        values.put("userid",borrow.getUserid());
+        values.put("bostate",borrow.getBostate());
+        long id = db.insert("borrow",null,values);
+        db.close();
+        boolean flag;
+        if (id != -1){
+            flag = true;
+        }else {
+            flag = false;
+        }
+        return flag;
+    }
+    //查询借阅记录
+    public ArrayList<Borrow> ShowBorrow(DBHelper dbHelper,String uid){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        Cursor cursor = db.rawQuery("select * from borrow where userid = ? order by boid desc",new String[]{uid});
+        ArrayList<Borrow> list = new ArrayList<>();
+        if (cursor != null && cursor.getCount() > 0){
+            while (cursor.moveToNext()){
+                String bookid = cursor.getString(cursor.getColumnIndex("bookid"));
+                String botime = cursor.getString(cursor.getColumnIndex("botime"));
+                int bostate = cursor.getInt(cursor.getColumnIndex("bostate"));
+                String backtime = cursor.getString(cursor.getColumnIndex("backtime"));
+                String reviewer = cursor.getString(cursor.getColumnIndex("reviewer"));
+                Borrow borrow = new Borrow(botime,bookid,bostate,backtime,reviewer);
+                list.add(borrow);
+            }
+        }
+        db.close();
+        return list;
+    }
+    //所有借阅记录
+    public ArrayList<Borrow> AllBorrow(DBHelper dbHelper){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        Cursor cursor = db.rawQuery("select * from borrow order by boid desc",null);
+        ArrayList<Borrow> list = new ArrayList<>();
+        if (cursor != null && cursor.getCount() > 0){
+            while (cursor.moveToNext()){
+                String boid = cursor.getString(cursor.getColumnIndex("boid"));
+                String bookid = cursor.getString(cursor.getColumnIndex("bookid"));
+                String botime = cursor.getString(cursor.getColumnIndex("botime"));
+                String userid = cursor.getString(cursor.getColumnIndex("userid"));
+                int bostate = cursor.getInt(cursor.getColumnIndex("bostate"));
+                String backtime = cursor.getString(cursor.getColumnIndex("backtime"));
+                String reviewer = cursor.getString(cursor.getColumnIndex("reviewer"));
+                Borrow borrow = new Borrow(boid,botime,bookid,userid,bostate,backtime,reviewer);
+                list.add(borrow);
+            }
+        }
+        db.close();
+        return list;
+    }
+    //还书
+    public void ReturnBook(DBHelper dbHelper,String boid,String backtime,String reviewer){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        ContentValues values = new ContentValues();
+        values.put("bostate",1);
+        values.put("backtime",backtime);
+        values.put("reviewer",reviewer);
+        db.update("borrow",values,"boid=?",new String[]{boid});
+        db.close();
+    }
+}

bms/src/main/java/com/zhang/bms/control/DBHelper.java

@@ -0,0 +1,39 @@
+package com.zhang.bms.control;
+
+import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+
+import androidx.annotation.Nullable;
+
+public class DBHelper extends SQLiteOpenHelper {
+    private Context mcontext;
+    private final static String CREATE_USER = "CREATE TABLE user(id INTEGER PRIMARY KEY " +
+            "AUTOINCREMENT,username VARCHAR(20),password VARCHAR(20),passlock VARCHAR(20)" +
+            ",passkey VARCHAR(20),role VARCHAR(20),borrowlist VARCHAR(20),collection VARCHAR(20))";
+    private final static String CREATE_BOOK = "CREATE TABLE book(id INTEGER PRIMARY KEY " +
+            "AUTOINCREMENT,ISBN VARCHAR(20),bookname VARCHAR(20),author VARCHAR(20),press VARCHAR(20)" +
+            ",publicationtime VARCHAR(20),category VARCHAR(20),synopsis VARCHAR(50),page INTEGER" +
+            ",inventory INTEGER)";
+    private final static String CREATE_BORROW = "CREATE TABLE borrow(boid INTEGER PRIMARY KEY " +
+            "AUTOINCREMENT,botime VARCHAR(20),bookid VARCHAR(20),userid VARCHAR(20),bostate INTEGER" +
+            ",backtime VARCHAR(20),reviewer VARCHAR(20))";
+
+    public DBHelper(@Nullable Context context, @Nullable String name, @Nullable SQLiteDatabase.CursorFactory factory, int version){
+        super(context, name, factory, version);
+        this.mcontext = context;
+    }
+    @Override
+    public void onCreate(SQLiteDatabase db) {
+        db.execSQL(CREATE_USER);
+        db.execSQL(CREATE_BOOK);
+        db.execSQL(CREATE_BORROW);
+    }
+
+    @Override
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+        db.execSQL("drop table if exists user");
+        db.execSQL("drop table if exists book");
+        db.execSQL("drop table if exists borrow");
+    }
+}

bms/src/main/java/com/zhang/bms/control/UserTableHelper.java

@@ -0,0 +1,229 @@
+package com.zhang.bms.control;
+
+import android.content.ContentValues;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+
+import com.zhang.bms.model.User;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class UserTableHelper {
+    //注册
+    public void Register(DBHelper dbHelper,String username,String password,String passlock,
+                         String passkey,String role,String collection){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        ContentValues values = new ContentValues();
+        values.put("username",username);
+        values.put("password",password);
+        values.put("passlock",passlock);
+        values.put("passkey",passkey);
+        values.put("role",role);
+        values.put("collection",collection);
+        db.insert("user",null,values);
+        db.close();
+    }
+    //检测用户名是否重复
+    public boolean CheckUsername(DBHelper dbHelper,String username){
+        SQLiteDatabase db = dbHelper.getReadableDatabase();
+        Cursor cursor = db.query("user",new String[]{"username"},"username=?",
+                new String[]{username + ""},null,null,null);
+        int count = cursor.getCount();
+        boolean result;
+        if (count == 0){
+            result = true;
+        }else {
+            result = false;
+        }
+        db.close();
+        return result;
+    }
+    //登录
+    public boolean Login(DBHelper dbHelper,String username,String password){
+        SQLiteDatabase db = dbHelper.getReadableDatabase();
+        Cursor cursor = db.query("user",new String[]{"username","password"},
+                "username=? and password=?",new String[]{username + "",password + ""},
+                null,null,null);
+        int count = cursor.getCount();
+        boolean result;
+        if (count != 0){
+            result = true;
+        }else {
+            result = false;
+        }
+        db.close();
+        return result;
+    }
+    //用户管理列表
+    public ArrayList<User> UserList(DBHelper dbHelper){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        Cursor cursor = db.query("user",new String[]{"id","username","role"},
+                null,null,null,null,"id desc");
+        ArrayList<User> list = new ArrayList<>();
+        if (cursor != null && cursor.getCount() > 0){
+            while (cursor.moveToNext()){
+                String id = cursor.getString(cursor.getColumnIndex("id"));
+                String username = cursor.getString(cursor.getColumnIndex("username"));
+                String role = cursor.getString(cursor.getColumnIndex("role"));
+                User user = new User(id,username,role);
+                list.add(user);
+            }
+        }
+        db.close();
+        return list;
+    }
+    //用户管理详情页
+    public ArrayList<User> UserDetails(DBHelper dbHelper,String uid){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        Cursor cursor = db.query("user",new String[]{"id","username","passlock","passkey","role"},
+                "id = ?",new String[]{uid + ""},null,null,null);
+        ArrayList<User> list = new ArrayList<>();
+        if (cursor != null && cursor.getCount() > 0){
+            while (cursor.moveToNext()){
+                String id = cursor.getString(cursor.getColumnIndex("id"));
+                String username = cursor.getString(cursor.getColumnIndex("username"));
+                String passlock = cursor.getString(cursor.getColumnIndex("passlock"));
+                String passkey = cursor.getString(cursor.getColumnIndex("passkey"));
+                String role = cursor.getString(cursor.getColumnIndex("role"));
+                User user = new User(id,username,passlock,passkey,role);
+                list.add(user);
+            }
+        }
+        db.close();
+        return list;
+    }
+    //修改用户密码
+    public boolean UpdatePassword(DBHelper dbHelper,String new_password,String uid){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        ContentValues values = new ContentValues();
+        values.put("password",new_password);
+        int flag = db.update("user",values,"id=?",new String[]{uid});
+        boolean result;
+        if (flag == -1){
+            result = false;
+        }else {
+            result = true;
+        }
+        db.close();
+        return result;
+    }
+    //删除用户
+    public boolean DeleteUser(DBHelper dbHelper,String id){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        int flag = db.delete("user","id=?",new String[]{id + ""});
+        db.close();
+        boolean result;
+        if (flag == -1){
+            result = false;
+        }else {
+            result = true;
+        }
+        return result;
+    }
+    //修改用户组
+    public boolean UpdateRole(DBHelper dbHelper,String new_role,String uid){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        ContentValues values = new ContentValues();
+        values.put("role",new_role);
+        int flag = db.update("user",values,"id=?",new String[]{uid});
+        boolean result;
+        if (flag == -1){
+            result = false;
+        }else {
+            result = true;
+        }
+        db.close();
+        return result;
+    }
+    //用户登录数据
+    public ArrayList<User> UserList(DBHelper dbHelper,String username){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        Cursor cursor = db.query("user",new String[]{"id","username","passlock","passkey","role"},
+                "username = ?",new String[]{username + ""},null,null,null);
+        ArrayList<User> list = new ArrayList<>();
+        if (cursor != null && cursor.getCount() > 0){
+            while (cursor.moveToNext()){
+                String id = cursor.getString(cursor.getColumnIndex("id"));
+                String passlock = cursor.getString(cursor.getColumnIndex("passlock"));
+                String passkey = cursor.getString(cursor.getColumnIndex("passkey"));
+                String role = cursor.getString(cursor.getColumnIndex("role"));
+                User user = new User(id,username,passlock,passkey,role);
+                list.add(user);
+            }
+        }
+        db.close();
+        return list;
+    }
+    //修改密码
+    public boolean ChangePass(DBHelper dbHelper,String username,String newpass){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        ContentValues values = new ContentValues();
+        values.put("password",newpass);
+        int flag = db.update("user",values,"username=?",new String[]{username});
+        boolean result;
+        if (flag == -1){
+            result = false;
+        }else {
+            result = true;
+        }
+        db.close();
+        return result;
+    }
+    //密保验证
+    public boolean PassLock(DBHelper dbHelper,String username,String passlock,String passkey){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        Cursor cursor = db.query("user",new String[]{"username","passlock","passkey"},
+                "username=? and passlock=? and passkey=?",new String[]{username+"",passlock+"",passkey+""},
+                null,null,null);
+        int count = cursor.getCount();
+        boolean result;
+        if (count != 0){
+            result = true;
+        }else {
+            result = false;
+        }
+        db.close();
+        return result;
+    }
+    //查询密保问题
+    public String FindPassLock(DBHelper dbHelper,String username){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        Cursor cursor = db.query("user",new String[]{"passlock"},
+                "username = ?",new String[]{username+""},null,null,null);
+        String passlock = ""+-1;
+        if (cursor != null && cursor.getCount() >0){
+            while (cursor.moveToNext()) {
+               passlock = cursor.getString(cursor.getColumnIndex("passlock"));
+            }
+        }else {
+            passlock = ""+-1;
+        }
+        db.close();
+        return passlock;
+    }
+    //收藏图书
+    public void CollectBook(DBHelper dbHelper,String uid,String collection){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        ContentValues values = new ContentValues();
+        values.put("collection",collection);
+        db.update("user",values,"id=?",new String[]{uid});
+        db.close();
+    }
+    //查询已收藏的书
+    public String FindCollectionBooks(DBHelper dbHelper,String uid){
+        SQLiteDatabase db = dbHelper.getWritableDatabase();
+        Cursor cursor = db.query("user",new String[]{"collection"},
+                "id = ?",new String[]{uid+""},null,null,null);
+        String collections = "";
+        if (cursor !=null && cursor.getCount() >0){
+            while (cursor.moveToNext()){
+                collections = cursor.getString(cursor.getColumnIndex("collection"));
+            }
+        }else {
+            collections = "";
+        }
+        db.close();
+        return collections;
+    }
+}

bms/src/main/java/com/zhang/bms/control/control.plantuml

@@ -0,0 +1,82 @@
+@startuml
+
+title __CONTROL's Class Diagram__\n
+
+  namespace com.zhang.bms {
+    namespace control {
+      class com.zhang.bms.control.BookTableHelper {
+          + AddBook()
+          + BookDetails()
+          + BookGrid()
+          + BookList()
+          + BorrowBook()
+          + DeleteBook()
+          + FindInventory()
+          + SearchBook()
+          + SearchCollection()
+          + UpdateBook()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace control {
+      class com.zhang.bms.control.BorrowTableHelper {
+          + AddBorrow()
+          + AllBorrow()
+          + ReturnBook()
+          + ShowBorrow()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace control {
+      class com.zhang.bms.control.DBHelper {
+          {static} - CREATE_BOOK : String
+          {static} - CREATE_BORROW : String
+          {static} - CREATE_USER : String
+          - mcontext : Context
+          + DBHelper()
+          + onCreate()
+          + onUpgrade()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace control {
+      class com.zhang.bms.control.UserTableHelper {
+          + ChangePass()
+          + CheckUsername()
+          + CollectBook()
+          + DeleteUser()
+          + FindCollectionBooks()
+          + FindPassLock()
+          + Login()
+          + PassLock()
+          + Register()
+          + UpdatePassword()
+          + UpdateRole()
+          + UserDetails()
+          + UserList()
+          + UserList()
+      }
+    }
+  }
+  
+
+  com.zhang.bms.control.DBHelper -up-|> android.database.sqlite.SQLiteOpenHelper
+
+
+right footer
+
+
+PlantUML diagram generated by SketchIt! (https://bitbucket.org/pmesmeur/sketch.it)
+For more information about this tool, please contact philippe.mesmeur@gmail.com
+endfooter
+
+@enduml

bms/src/main/java/com/zhang/bms/model/Book.java

@@ -0,0 +1,130 @@
+package com.zhang.bms.model;
+
+public class Book {
+    private String id;
+    private String ISBN;
+    private String bookname;
+    private String author;
+    private String press;
+    private String publicationtime;
+    private String category;
+    private String synopsis;
+    private int page;
+    private int inventory;
+
+    public int getPage() {
+        return page;
+    }
+
+    public void setPage(int page) {
+        this.page = page;
+    }
+
+    public String getISBN() {
+        return ISBN;
+    }
+
+    public void setISBN(String ISBN) {
+        this.ISBN = ISBN;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getBookname() {
+        return bookname;
+    }
+
+    public void setBookname(String bookname) {
+        this.bookname = bookname;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
+    public String getPress() {
+        return press;
+    }
+
+    public void setPress(String press) {
+        this.press = press;
+    }
+
+    public String getPublicationtime() {
+        return publicationtime;
+    }
+
+    public void setPublicationtime(String publicationtime) {
+        this.publicationtime = publicationtime;
+    }
+
+    public String getCategory() {
+        return category;
+    }
+
+    public void setCategory(String category) {
+        this.category = category;
+    }
+
+    public String getSynopsis() {
+        return synopsis;
+    }
+
+    public void setSynopsis(String synopsis) {
+        this.synopsis = synopsis;
+    }
+
+    public int getinventory() {
+        return inventory;
+    }
+
+    public void setinventory(int inventory) {
+        this.inventory = inventory;
+    }
+
+    public Book(String id, String bookname, String author, String category) {
+        this.id = id;
+        this.bookname = bookname;
+        this.author = author;
+        this.category = category;
+    }
+
+    public Book() {
+    }
+
+    public Book(String ISBN,String bookname, String author, String press, String publicationtime, String category,
+                String synopsis, int inventory,int page) {
+        this.ISBN = ISBN;
+        this.bookname = bookname;
+        this.author = author;
+        this.press = press;
+        this.publicationtime = publicationtime;
+        this.category = category;
+        this.synopsis = synopsis;
+        this.inventory = inventory;
+        this.page = page;
+    }
+
+    public Book(String bookname, String author, int inventory) {
+        this.bookname = bookname;
+        this.author = author;
+        this.inventory = inventory;
+    }
+
+    public Book(String id, String bookname, String author, int inventory,int version) {
+        this.id = id;
+        this.bookname = bookname;
+        this.author = author;
+        this.inventory = inventory;
+    }
+}

bms/src/main/java/com/zhang/bms/model/BookGridAdapter.java

@@ -0,0 +1,61 @@
+package com.zhang.bms.model;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.TextView;
+
+import com.zhang.bms.R;
+
+import java.lang.reflect.Array;
+import java.util.ArrayList;
+
+public class BookGridAdapter extends BaseAdapter {
+    private Context mcontext;
+    private ArrayList<Book> mBookList;
+    public BookGridAdapter(Context context,ArrayList<Book> book_list){
+        mcontext = context;
+        mBookList = book_list;
+    }
+    @Override
+    public int getCount() {
+        return mBookList.size();
+    }
+
+    @Override
+    public Object getItem(int position) {
+        return mBookList.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return position;
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        ViewHolder holder;
+        if (convertView == null){
+            holder = new ViewHolder();
+            convertView = LayoutInflater.from(mcontext).inflate(R.layout.sq_bookgrid,null);
+            holder.booklist_bookname = convertView.findViewById(R.id.bookname);
+            holder.booklist_author = convertView.findViewById(R.id.author);
+            holder.booklist_inventory = convertView.findViewById(R.id.price);
+            convertView.setTag(holder);
+        }else {
+            holder = (ViewHolder)convertView.getTag();
+        }
+        Book book = mBookList.get(position);
+        holder.booklist_bookname.setText(book.getBookname());
+        holder.booklist_author.setText("主编/作者：" + book.getAuthor());
+        holder.booklist_inventory.setText("馆存：" + book.getinventory()+" 本");
+        return convertView;
+    }
+    public final class ViewHolder {
+        public TextView booklist_bookname;
+        public TextView booklist_author;
+        public TextView booklist_inventory;
+    }
+}

bms/src/main/java/com/zhang/bms/model/BookListAdapter.java

@@ -0,0 +1,64 @@
+package com.zhang.bms.model;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.TextView;
+
+import com.zhang.bms.R;
+
+import java.util.ArrayList;
+
+public class BookListAdapter extends BaseAdapter {
+    private Context mcontext;//声明一个上下文对象
+    private ArrayList<Book> mBookList;//声明一个用户信息队列
+    //用户适配器的构造函数，传入上下文与用户队列
+    public BookListAdapter(Context context, ArrayList<Book> book_list){
+        mcontext = context;
+        mBookList = book_list;
+    }
+    @Override
+    public int getCount() {
+        return mBookList.size();
+    }
+
+    @Override
+    public Object getItem(int position) {
+        return mBookList.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return position;
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        ViewHolder holder;
+        if (convertView == null){
+            holder = new ViewHolder();
+            convertView = LayoutInflater.from(mcontext).inflate(R.layout.sq_booklist,null);
+            holder.booklist_bookname = convertView.findViewById(R.id.booklist_bookname);
+            holder.booklist_author = convertView.findViewById(R.id.booklist_author);
+            holder.booklist_category = convertView.findViewById(R.id.booklist_category);
+            //将视图持有者保存到转换视图当中
+            convertView.setTag(holder);
+        }else {//转换视图非空
+            //从转换视图中获取之前保存的视图持有者
+            holder = (ViewHolder)convertView.getTag();
+        }
+        Book book = mBookList.get(position);
+        holder.booklist_bookname.setText("《"+book.getBookname()+"》");
+        holder.booklist_author.setText(book.getAuthor());
+        holder.booklist_category.setText(book.getCategory());
+        return convertView;
+    }
+    //定义一个试图持有者，以便重用列表项的试图资源
+    public final class ViewHolder {
+        public TextView booklist_bookname;
+        public TextView booklist_author;
+        public TextView booklist_category;
+    }
+}

bms/src/main/java/com/zhang/bms/model/Borrow.java

@@ -0,0 +1,88 @@
+package com.zhang.bms.model;
+
+public class Borrow {
+    private String boid;
+    private String botime;
+    private String bookid;
+    private String userid;
+    private int bostate;
+    private String backtime;
+    private String reviewer;
+
+    public String getBacktime() {
+        return backtime;
+    }
+
+    public void setBacktime(String backtime) {
+        this.backtime = backtime;
+    }
+
+    public String getReviewer() {
+        return reviewer;
+    }
+
+    public void setReviewer(String reviewer) {
+        this.reviewer = reviewer;
+    }
+
+    public String getBoid() {
+        return boid;
+    }
+
+    public void setBoid(String boid) {
+        this.boid = boid;
+    }
+
+    public String getBotime() {
+        return botime;
+    }
+
+    public void setBotime(String botime) {
+        this.botime = botime;
+    }
+
+    public String getBookid() {
+        return bookid;
+    }
+
+    public void setBookid(String bookid) {
+        this.bookid = bookid;
+    }
+
+    public String getUserid() {
+        return userid;
+    }
+
+    public void setUserid(String userid) {
+        this.userid = userid;
+    }
+
+    public int getBostate() {
+        return bostate;
+    }
+
+    public void setBostate(int bostate) {
+        this.bostate = bostate;
+    }
+
+    public Borrow(String botime, String bookid, int bostate,String backtime,String reviewer) {
+        this.botime = botime;
+        this.bookid = bookid;
+        this.bostate = bostate;
+        this.backtime = backtime;
+        this.reviewer = reviewer;
+    }
+
+    public Borrow() {
+    }
+
+    public Borrow(String boid, String botime, String bookid, String userid, int bostate, String backtime, String reviewer) {
+        this.boid = boid;
+        this.botime = botime;
+        this.bookid = bookid;
+        this.userid = userid;
+        this.bostate = bostate;
+        this.backtime = backtime;
+        this.reviewer = reviewer;
+    }
+}

bms/src/main/java/com/zhang/bms/model/BorrowListAdapter.java

@@ -0,0 +1,86 @@
+package com.zhang.bms.model;
+
+import android.content.Context;
+import android.graphics.Color;
+import android.text.SpannableString;
+import android.text.Spanned;
+import android.text.style.ForegroundColorSpan;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.TextView;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.BookTableHelper;
+import com.zhang.bms.control.DBHelper;
+
+import java.util.ArrayList;
+
+public class BorrowListAdapter extends BaseAdapter {
+    private Context mcontext;
+    private ArrayList<Borrow> mBorrowList;
+    private BookTableHelper bookTableHelper = new BookTableHelper();
+    private ArrayList<Book> bookArrayList;
+    public BorrowListAdapter(Context context,ArrayList<Borrow> borrow_list){
+        mcontext = context;
+        mBorrowList = borrow_list;
+    }
+    @Override
+    public int getCount() {
+        return mBorrowList.size();
+    }
+
+    @Override
+    public Object getItem(int position) {
+        return mBorrowList.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return position;
+    }
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        ViewHolder holder;
+        if (convertView == null){
+            holder = new ViewHolder();
+            convertView = LayoutInflater.from(mcontext).inflate(R.layout.borrowlist,null);
+            holder.borrow_bookname = convertView.findViewById(R.id.borrow_bookname);
+            holder.borrow_time = convertView.findViewById(R.id.borrow_time);
+            holder.borrow_state = convertView.findViewById(R.id.borrow_state);
+            holder.backtime = convertView.findViewById(R.id.backtime);
+            holder.reviewer = convertView.findViewById(R.id.reviewer);
+            convertView.setTag(holder);
+        }else {
+            holder = (ViewHolder)convertView.getTag();
+        }
+        final DBHelper dbHelper= new DBHelper(mcontext,"bms",null,1);
+        Borrow borrow = mBorrowList.get(position);
+        String bid = borrow.getBookid();
+        bookArrayList = bookTableHelper.BookDetails(dbHelper,bid);
+        holder.borrow_bookname.setText(bookArrayList.get(0).getBookname());
+        holder.borrow_time.setText("借阅日期：" + borrow.getBotime());
+        if (borrow.getBostate() == 0){
+            String needreturn = "未还";
+            holder.borrow_state.setText(needreturn);
+            holder.backtime.setText("还书日期：--");
+            holder.reviewer.setText("审核人：--");
+        }else {
+            String needreturn = "已还";
+            SpannableString spannableString = new SpannableString(needreturn);
+            spannableString.setSpan(new ForegroundColorSpan(Color.parseColor("#404146")),0,spannableString.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+            holder.borrow_state.setText(spannableString);
+            holder.backtime.setText("还书日期："+borrow.getBacktime());
+            holder.reviewer.setText("审核人："+borrow.getReviewer());
+        }
+        return convertView;
+    }
+    public final class ViewHolder{
+        public TextView borrow_bookname;
+        public TextView borrow_time;
+        public TextView borrow_state;
+        public TextView backtime;
+        public TextView reviewer;
+    }
+}

bms/src/main/java/com/zhang/bms/model/BorrowManageListAdapter.java

@@ -0,0 +1,91 @@
+package com.zhang.bms.model;
+
+import android.content.Context;
+import android.graphics.Color;
+import android.text.SpannableString;
+import android.text.Spanned;
+import android.text.style.ForegroundColorSpan;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.TextView;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.BookTableHelper;
+import com.zhang.bms.control.DBHelper;
+
+import java.util.ArrayList;
+
+public class BorrowManageListAdapter extends BaseAdapter {
+    private Context mcontext;
+    private ArrayList<Borrow> mBorrowList;
+    private BookTableHelper bookTableHelper = new BookTableHelper();
+    private ArrayList<Book> bookArrayList;
+    public BorrowManageListAdapter(Context context, ArrayList<Borrow> borrow_list){
+        mcontext = context;
+        mBorrowList = borrow_list;
+    }
+    @Override
+    public int getCount() {
+        return mBorrowList.size();
+    }
+
+    @Override
+    public Object getItem(int position) {
+        return mBorrowList.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return position;
+    }
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        ViewHolder holder;
+        if (convertView == null){
+            holder = new ViewHolder();
+            convertView = LayoutInflater.from(mcontext).inflate(R.layout.borrowlist_manage,null);
+            holder.borrow_bookname = convertView.findViewById(R.id.borrow_bookname);
+            holder.borrow_time = convertView.findViewById(R.id.borrow_time);
+            holder.borrow_state = convertView.findViewById(R.id.borrow_state);
+            holder.borrow_boid = convertView.findViewById(R.id.borrow_boid);
+            holder.backtime = convertView.findViewById(R.id.backtime);
+            holder.userid = convertView.findViewById(R.id.userid);
+            holder.reviewer = convertView.findViewById(R.id.reviewer);
+            convertView.setTag(holder);
+        }else {
+            holder = (ViewHolder)convertView.getTag();
+        }
+        final DBHelper dbHelper= new DBHelper(mcontext,"bms",null,1);
+        Borrow borrow = mBorrowList.get(position);
+        String bid = borrow.getBookid();
+        bookArrayList = bookTableHelper.BookDetails(dbHelper,bid);
+        holder.borrow_bookname.setText(bookArrayList.get(0).getBookname());
+        holder.borrow_time.setText("借阅日期：" + borrow.getBotime());
+        holder.borrow_boid.setText("借阅ID："+ borrow.getBoid());
+        holder.userid.setText("借阅者ID：" + borrow.getUserid());
+        if (borrow.getBostate() == 0){
+            holder.borrow_state.setText("还书");
+            holder.backtime.setText("还书日期：--");
+            holder.reviewer.setText("审核人：--");
+        }else {
+            String needreturn = "已还";
+            SpannableString spannableString = new SpannableString(needreturn);
+            spannableString.setSpan(new ForegroundColorSpan(Color.parseColor("#404146")),0,spannableString.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+            holder.borrow_state.setText(spannableString);
+            holder.backtime.setText("还书日期：" + borrow.getBacktime());
+            holder.reviewer.setText("审核人：" + borrow.getReviewer());
+        }
+        return convertView;
+    }
+    public final class ViewHolder{
+        public TextView borrow_bookname;
+        public TextView borrow_time;
+        public TextView borrow_state;
+        public TextView borrow_boid;
+        public TextView backtime;
+        public TextView reviewer;
+        public TextView userid;
+    }
+}

bms/src/main/java/com/zhang/bms/model/CustomEditTextDialog.java

@@ -0,0 +1,57 @@
+package com.zhang.bms.model;
+
+import android.app.Dialog;
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+
+import com.zhang.bms.R;
+
+public class CustomEditTextDialog extends Dialog {
+    Context mContext;
+    private TextView btnSure;
+    private TextView btnCancle;
+    private TextView title;
+    private EditText editText;
+
+    public CustomEditTextDialog(@NonNull Context context) {
+        super(context, R.style.Dialog_Msg);
+        this.mContext = context;
+        initView();
+    }
+
+    //初始化
+    public void initView() {
+        View view = LayoutInflater.from(mContext).inflate(R.layout.edit_dialog, null);
+        title = (TextView) view.findViewById(R.id.title);
+        editText = (EditText) view.findViewById(R.id.edittext);
+        btnSure = (TextView) view.findViewById(R.id.dialog_confirm_sure);
+        btnCancle = (TextView) view.findViewById(R.id.dialog_confirm_cancle);
+        super.setContentView(view);
+    }
+
+
+    public CustomEditTextDialog setTile(String s) {
+        title.setText(s);
+        return this;
+    }
+
+    //获取当前输入框对象
+    public View getEditText() {
+        return editText;
+    }
+
+    //确定键监听器
+    public void setOnSureListener(View.OnClickListener listener) {
+        btnSure.setOnClickListener(listener);
+    }
+
+    //取消键监听器
+    public void setOnCanlceListener(View.OnClickListener listener) {
+        btnCancle.setOnClickListener(listener);
+    }
+}

bms/src/main/java/com/zhang/bms/model/CustomSpinnerDialog.java

@@ -0,0 +1,59 @@
+package com.zhang.bms.model;
+
+import android.app.Dialog;
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.ArrayAdapter;
+import android.widget.EditText;
+import android.widget.Spinner;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+
+import com.zhang.bms.R;
+
+public class CustomSpinnerDialog extends Dialog {
+    Context mContext;
+    private TextView btnSure;
+    private TextView btnCancle;
+    private TextView title;
+    private Spinner spinner;
+
+    public CustomSpinnerDialog(@NonNull Context context) {
+        super(context, R.style.Dialog_Msg);
+        this.mContext = context;
+        initView();
+    }
+
+    //初始化
+    public void initView() {
+        View view = LayoutInflater.from(mContext).inflate(R.layout.spinner_dialog, null);
+        title = (TextView) view.findViewById(R.id.title);
+        spinner = (Spinner) view.findViewById(R.id.spinner);
+        btnSure = (TextView) view.findViewById(R.id.dialog_confirm_sure);
+        btnCancle = (TextView) view.findViewById(R.id.dialog_confirm_cancle);
+        super.setContentView(view);
+    }
+
+
+    public CustomSpinnerDialog setTile(String s) {
+        title.setText(s);
+        return this;
+    }
+
+    //获取当前输入框对象
+    public View getSpinnerItem() {
+        return spinner;
+    }
+
+    //确定键监听器
+    public void setOnSureListener(View.OnClickListener listener) {
+        btnSure.setOnClickListener(listener);
+    }
+
+    //取消键监听器
+    public void setOnCanlceListener(View.OnClickListener listener) {
+        btnCancle.setOnClickListener(listener);
+    }
+}

bms/src/main/java/com/zhang/bms/model/GetTime.java

@@ -0,0 +1,17 @@
+package com.zhang.bms.model;
+
+import java.util.Calendar;
+
+public class GetTime {
+    Calendar c = Calendar.getInstance();
+    int year = c.get(Calendar.YEAR);
+    int month = c.get(Calendar.MONTH) + 1;
+    int date = c.get(Calendar.DATE);
+    int hour = c.get(Calendar.HOUR_OF_DAY);
+    int minute = c.get(Calendar.MINUTE);
+    int second = c.get(Calendar.SECOND);
+    String time;
+    public String BorrowTime(){
+        return time = year+"-"+month+"-"+date;
+    }
+}

bms/src/main/java/com/zhang/bms/model/SqTipsDialog.java

@@ -0,0 +1,68 @@
+package com.zhang.bms.model;
+
+import android.app.Dialog;
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+
+import com.zhang.bms.R;
+
+public class SqTipsDialog extends Dialog {
+    Context mContext;
+    private TextView btnSure;
+    private TextView btnCancle;
+    private TextView title;
+    private TextView tips;
+
+    public SqTipsDialog(@NonNull Context context) {
+        super(context, R.style.Dialog_Msg);
+        this.mContext = context;
+        initView();
+    }
+
+    //初始化
+    public void initView() {
+        View view = LayoutInflater.from(mContext).inflate(R.layout.sq_dialog_tips, null);
+        title = (TextView) view.findViewById(R.id.title);
+        tips = (TextView) view.findViewById(R.id.tips);
+        btnSure = (TextView) view.findViewById(R.id.dialog_confirm_sure);
+        btnCancle = (TextView) view.findViewById(R.id.dialog_confirm_cancle);
+        super.setContentView(view);
+    }
+
+    public SqTipsDialog setSurebtnVisible(boolean b){
+        if (b == false){
+            btnSure.setVisibility(View.GONE);
+        }
+        return this;
+    }
+
+    public SqTipsDialog setCancelbtnVisible(boolean b){
+        if (b == false){
+            btnCancle.setVisibility(View.GONE);
+        }
+        return this;
+    }
+
+    public SqTipsDialog setTile(String s) {
+        title.setText(s);
+        return this;
+    }
+    public SqTipsDialog setMsg(String s) {
+        tips.setText(s);
+        return this;
+    }
+
+    //确定键监听器
+    public void setOnSureListener(View.OnClickListener listener) {
+        btnSure.setOnClickListener(listener);
+    }
+
+    //取消键监听器
+    public void setOnCanlceListener(View.OnClickListener listener) {
+        btnCancle.setOnClickListener(listener);
+    }
+}

bms/src/main/java/com/zhang/bms/model/StringTrans.java

@@ -0,0 +1,15 @@
+package com.zhang.bms.model;
+
+public class StringTrans {
+    String temp1 = null;
+    String temp2 = null;
+    public String StringTrans(String o_str){
+        if (o_str.contains("//")){
+            temp1 = o_str.replace("//",",");
+        }else {
+            temp1 = o_str;
+        }
+        temp2 = temp1.replace("/","");
+        return temp2;
+    }
+}

bms/src/main/java/com/zhang/bms/model/User.java

@@ -0,0 +1,84 @@
+package com.zhang.bms.model;
+
+public class User {
+    private String id;
+    private String username;
+    private String password;
+    private String passlock;
+    private String passkey;
+    private String role;
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public String getPasslock() {
+        return passlock;
+    }
+
+    public void setPasslock(String passlock) {
+        this.passlock = passlock;
+    }
+
+    public String getPasskey() {
+        return passkey;
+    }
+
+    public void setPasskey(String passkey) {
+        this.passkey = passkey;
+    }
+
+    public String getRole() {
+        return role;
+    }
+
+    public void setRole(String role) {
+        this.role = role;
+    }
+
+    public User(String id, String username, String password, String passlock, String passkey, String role) {
+        this.id = id;
+        this.username = username;
+        this.password = password;
+        this.passlock = passlock;
+        this.passkey = passkey;
+        this.role = role;
+    }
+    public User(String id, String username, String password,String role) {
+        this.id = id;
+        this.username = username;
+        this.password = password;
+        this.role = role;
+    }
+    public User(String id, String username,String role) {
+        this.id = id;
+        this.username = username;
+        this.role = role;
+    }
+    public User(String id, String username, String passlock, String passkey, String role) {
+        this.id = id;
+        this.username = username;
+        this.passlock = passlock;
+        this.passkey = passkey;
+        this.role = role;
+    }
+}

bms/src/main/java/com/zhang/bms/model/UserListAdapter.java

@@ -0,0 +1,64 @@
+package com.zhang.bms.model;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.TextView;
+
+import com.zhang.bms.R;
+
+import java.util.ArrayList;
+
+public class UserListAdapter extends BaseAdapter {
+    private Context mcontext;//声明一个上下文对象
+    private ArrayList<User> mUserList;//声明一个用户信息队列
+    //用户适配器的构造函数，传入上下文与用户队列
+    public UserListAdapter(Context context,ArrayList<User> user_list){
+        mcontext = context;
+        mUserList = user_list;
+    }
+    @Override
+    public int getCount() {
+        return mUserList.size();
+    }
+
+    @Override
+    public Object getItem(int position) {
+        return mUserList.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return position;
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        ViewHolder holder;
+        if (convertView == null){
+            holder = new ViewHolder();
+            convertView = LayoutInflater.from(mcontext).inflate(R.layout.sq_userlist,null);
+            holder.userlist_id = convertView.findViewById(R.id.userlist_id);
+            holder.userlist_username = convertView.findViewById(R.id.userlist_username);
+            holder.userlist_role = convertView.findViewById(R.id.userlist_role);
+            //将视图持有者保存到转换视图当中
+            convertView.setTag(holder);
+        }else {//转换视图非空
+            //从转换视图中获取之前保存的视图持有者
+            holder = (ViewHolder)convertView.getTag();
+        }
+        User user = mUserList.get(position);
+        holder.userlist_id.setText(user.getId());
+        holder.userlist_username.setText(user.getUsername());
+        holder.userlist_role.setText(user.getRole());
+        return convertView;
+    }
+    //定义一个试图持有者，以便重用列表项的试图资源
+    public final class ViewHolder {
+        public TextView userlist_id;
+        public TextView userlist_username;
+        public TextView userlist_role;
+    }
+}

bms/src/main/java/com/zhang/bms/model/model.plantuml

@@ -0,0 +1,323 @@
+@startuml
+
+title __MODEL's Class Diagram__\n
+
+  namespace com.zhang.bms {
+    namespace model {
+      class com.zhang.bms.model.Book {
+          - ISBN : String
+          - author : String
+          - bookname : String
+          - category : String
+          - id : String
+          - inventory : int
+          - page : int
+          - press : String
+          - publicationtime : String
+          - synopsis : String
+          + Book()
+          + Book()
+          + Book()
+          + Book()
+          + Book()
+          + getAuthor()
+          + getBookname()
+          + getCategory()
+          + getISBN()
+          + getId()
+          + getPage()
+          + getPress()
+          + getPublicationtime()
+          + getSynopsis()
+          + getinventory()
+          + setAuthor()
+          + setBookname()
+          + setCategory()
+          + setISBN()
+          + setId()
+          + setPage()
+          + setPress()
+          + setPublicationtime()
+          + setSynopsis()
+          + setinventory()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace model {
+      class com.zhang.bms.model.BookGridAdapter {
+          - mBookList : ArrayList<Book>
+          - mcontext : Context
+          + BookGridAdapter()
+          + getCount()
+          + getItem()
+          + getItemId()
+          + getView()
+      }
+    }
+  }
+  
+
+
+
+  namespace com.zhang.bms {
+    namespace model {
+      class com.zhang.bms.model.BookListAdapter {
+          - mBookList : ArrayList<Book>
+          - mcontext : Context
+          + BookListAdapter()
+          + getCount()
+          + getItem()
+          + getItemId()
+          + getView()
+      }
+    }
+  }
+  
+
+
+  
+
+  namespace com.zhang.bms {
+    namespace model {
+      class com.zhang.bms.model.Borrow {
+          - backtime : String
+          - boid : String
+          - bookid : String
+          - bostate : int
+          - botime : String
+          - reviewer : String
+          - userid : String
+          + Borrow()
+          + Borrow()
+          + Borrow()
+          + getBacktime()
+          + getBoid()
+          + getBookid()
+          + getBostate()
+          + getBotime()
+          + getReviewer()
+          + getUserid()
+          + setBacktime()
+          + setBoid()
+          + setBookid()
+          + setBostate()
+          + setBotime()
+          + setReviewer()
+          + setUserid()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace model {
+      class com.zhang.bms.model.BorrowListAdapter {
+          - bookArrayList : ArrayList<Book>
+          - mBorrowList : ArrayList<Borrow>
+          - mcontext : Context
+          + BorrowListAdapter()
+          + getCount()
+          + getItem()
+          + getItemId()
+          + getView()
+      }
+    }
+  }
+  
+
+
+  
+
+  namespace com.zhang.bms {
+    namespace model {
+      class com.zhang.bms.model.BorrowManageListAdapter {
+          - bookArrayList : ArrayList<Book>
+          - mBorrowList : ArrayList<Borrow>
+          - mcontext : Context
+          + BorrowManageListAdapter()
+          + getCount()
+          + getItem()
+          + getItemId()
+          + getView()
+      }
+    }
+  }
+  
+
+
+  
+
+  namespace com.zhang.bms {
+    namespace model {
+      class com.zhang.bms.model.CustomEditTextDialog {
+          ~ mContext : Context
+          - btnCancle : TextView
+          - btnSure : TextView
+          - editText : EditText
+          - title : TextView
+          + CustomEditTextDialog()
+          + getEditText()
+          + initView()
+          + setOnCanlceListener()
+          + setOnSureListener()
+          + setTile()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace model {
+      class com.zhang.bms.model.CustomSpinnerDialog {
+          ~ mContext : Context
+          - btnCancle : TextView
+          - btnSure : TextView
+          - spinner : Spinner
+          - title : TextView
+          + CustomSpinnerDialog()
+          + getSpinnerItem()
+          + initView()
+          + setOnCanlceListener()
+          + setOnSureListener()
+          + setTile()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace model {
+      class com.zhang.bms.model.GetTime {
+          ~ c : Calendar
+          ~ date : int
+          ~ hour : int
+          ~ minute : int
+          ~ month : int
+          ~ second : int
+          ~ time : String
+          ~ year : int
+          + BorrowTime()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace model {
+      class com.zhang.bms.model.SqTipsDialog {
+          ~ mContext : Context
+          - btnCancle : TextView
+          - btnSure : TextView
+          - tips : TextView
+          - title : TextView
+          + SqTipsDialog()
+          + initView()
+          + setCancelbtnVisible()
+          + setMsg()
+          + setOnCanlceListener()
+          + setOnSureListener()
+          + setSurebtnVisible()
+          + setTile()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace model {
+      class com.zhang.bms.model.StringTrans {
+          ~ temp1 : String
+          ~ temp2 : String
+          + StringTrans()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace model {
+      class com.zhang.bms.model.User {
+          - id : String
+          - passkey : String
+          - passlock : String
+          - password : String
+          - role : String
+          - username : String
+          + User()
+          + User()
+          + User()
+          + User()
+          + getId()
+          + getPasskey()
+          + getPasslock()
+          + getPassword()
+          + getRole()
+          + getUsername()
+          + setId()
+          + setPasskey()
+          + setPasslock()
+          + setPassword()
+          + setRole()
+          + setUsername()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace model {
+      class com.zhang.bms.model.UserListAdapter {
+          - mUserList : ArrayList<User>
+          - mcontext : Context
+          + UserListAdapter()
+          + getCount()
+          + getItem()
+          + getItemId()
+          + getView()
+      }
+    }
+  }
+  
+
+
+  
+
+  namespace com.zhang.bms {
+    namespace model {
+      class com.zhang.bms.model.simpleArrayAdapter {
+          + getCount()
+          + simpleArrayAdapter()
+      }
+    }
+  }
+  
+
+  com.zhang.bms.model.BookGridAdapter -up-|> android.widget.BaseAdapter
+  com.zhang.bms.model.BookGridAdapter +-down- com.zhang.bms.model.BookGridAdapter.ViewHolder
+  com.zhang.bms.model.BookListAdapter -up-|> android.widget.BaseAdapter
+  com.zhang.bms.model.BookListAdapter +-down- com.zhang.bms.model.BookListAdapter.ViewHolder
+  com.zhang.bms.model.BorrowListAdapter -up-|> android.widget.BaseAdapter
+  com.zhang.bms.model.BorrowListAdapter o-- com.zhang.bms.control.BookTableHelper : bookTableHelper
+  com.zhang.bms.model.BorrowListAdapter +-down- com.zhang.bms.model.BorrowListAdapter.ViewHolder
+  com.zhang.bms.model.BorrowManageListAdapter -up-|> android.widget.BaseAdapter
+  com.zhang.bms.model.BorrowManageListAdapter o-- com.zhang.bms.control.BookTableHelper : bookTableHelper
+  com.zhang.bms.model.BorrowManageListAdapter +-down- com.zhang.bms.model.BorrowManageListAdapter.ViewHolder
+  com.zhang.bms.model.CustomEditTextDialog -up-|> android.app.Dialog
+  com.zhang.bms.model.CustomSpinnerDialog -up-|> android.app.Dialog
+  com.zhang.bms.model.SqTipsDialog -up-|> android.app.Dialog
+  com.zhang.bms.model.UserListAdapter -up-|> android.widget.BaseAdapter
+  com.zhang.bms.model.UserListAdapter +-down- com.zhang.bms.model.UserListAdapter.ViewHolder
+  com.zhang.bms.model.simpleArrayAdapter -up-|> android.widget.ArrayAdapter
+
+
+right footer
+
+
+PlantUML diagram generated by SketchIt! (https://bitbucket.org/pmesmeur/sketch.it)
+For more information about this tool, please contact philippe.mesmeur@gmail.com
+endfooter
+
+@enduml

bms/src/main/java/com/zhang/bms/model/simpleArrayAdapter.java

@@ -0,0 +1,21 @@
+package com.zhang.bms.model;
+
+import android.content.Context;
+import android.widget.ArrayAdapter;
+
+import java.util.List;
+
+public class simpleArrayAdapter<T> extends ArrayAdapter {
+    //构造方法
+    public simpleArrayAdapter(Context context, int resource, List<T> objects) {
+        super(context, resource, objects);
+    }
+    //复写这个方法，使返回的数据没有最后一项
+    @Override
+    public int getCount() {
+        // don't display last item. It is used as hint.
+        int count = super.getCount();
+        return count > 0 ? count - 1 : count;
+    }
+
+}

bms/src/main/java/com/zhang/bms/ui/AddBookActivity.java

@@ -0,0 +1,128 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.Spinner;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.BookTableHelper;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.model.Book;
+import com.zhang.bms.model.SqTipsDialog;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+public class AddBookActivity extends AppCompatActivity implements View.OnClickListener {
+    private ImageView back;
+    private Button add;
+    private EditText ISBN;
+    private EditText bookname;
+    private EditText author;
+    private EditText press;
+    private EditText publicationtime;
+    private Spinner category;
+    private EditText synopsis;
+    private EditText inventory;
+    private EditText page;
+    final DBHelper dbHelper= new DBHelper(AddBookActivity.this,"bms",null,1);
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_add_book);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+    }
+
+    private void InitView(){
+        add = findViewById(R.id.addbook_btn_add);
+        add.setOnClickListener(this);
+        ISBN = findViewById(R.id.addbook_ISBN);
+        bookname = findViewById(R.id.addbook_bookname);
+        author = findViewById(R.id.addbook_author);
+        press = findViewById(R.id.addbook_press);
+        publicationtime = findViewById(R.id.addbook_publicationtime);
+        category = findViewById(R.id.addbook_category);
+        synopsis = findViewById(R.id.addbook_synopsis);
+        inventory = findViewById(R.id.addbook_price);
+        back = findViewById(R.id.iv_back);
+        back.setOnClickListener(this);
+        page = findViewById(R.id.addbook_page);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.addbook_btn_add:
+                final SqTipsDialog sqTipsDialog = new SqTipsDialog(this);
+                sqTipsDialog.setTitle("提示");
+                sqTipsDialog.setCancelbtnVisible(false);
+                String str_ISBN = ISBN.getText().toString();
+                String str_bookname = bookname.getText().toString();
+                String str_author = author.getText().toString();
+                String str_press = press.getText().toString();
+                String str_publicationtime = publicationtime.getText().toString();
+                String str_category = category.getSelectedItem().toString();
+                String str_synopsis = synopsis.getText().toString();
+                int str_inventory = Integer.parseInt(inventory.getText().toString());
+                int str_page = Integer.parseInt(page.getText().toString());
+                if (!str_bookname.isEmpty() && !str_author.isEmpty() && !str_press.isEmpty() &&
+                        !str_publicationtime.isEmpty() && !str_category.isEmpty() && !str_synopsis.isEmpty() &&
+                        !inventory.getText().toString().isEmpty() && !page.getText().toString().isEmpty()){
+                    Book book = new Book();
+                    book.setISBN(str_ISBN);
+                    book.setBookname(str_bookname);
+                    book.setAuthor(str_author);
+                    book.setPress(str_press);
+                    book.setPublicationtime(str_publicationtime);
+                    book.setCategory(str_category);
+                    book.setSynopsis(str_synopsis);
+                    book.setinventory(str_inventory);
+                    book.setPage(str_page);
+                    BookTableHelper bookTableHelper = new BookTableHelper();
+                    boolean AddFlag = bookTableHelper.AddBook(dbHelper,book);
+                    if (AddFlag == true){
+                        sqTipsDialog.setMsg("插入成功！");
+                        sqTipsDialog.setOnSureListener(new View.OnClickListener() {
+                            @Override
+                            public void onClick(View v) {
+                                Intent back = new Intent(AddBookActivity.this,ManageIndexActivity.class);
+                                startActivity(back);
+                            }
+                        });
+                        sqTipsDialog.show();
+                    }else {
+                        sqTipsDialog.setMsg("插入失败！");
+                        sqTipsDialog.setSurebtnVisible(false);
+                        sqTipsDialog.show();
+                    }
+                }else {
+                    sqTipsDialog.setMsg("图书信息不完整！");
+                    sqTipsDialog.setSurebtnVisible(false);
+                    sqTipsDialog.show();
+                }
+                break;
+            case R.id.iv_back:
+                Intent intent = new Intent(AddBookActivity.this,BookManageActivity.class);
+                startActivity(intent);
+                break;
+        }
+    }
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();//注释掉这行,back键不退出activity
+        Intent intent = new Intent(AddBookActivity.this,BookManageActivity.class);
+        startActivity(intent);
+    }
+}

bms/src/main/java/com/zhang/bms/ui/BookActivity.java

@@ -0,0 +1,175 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.BookTableHelper;
+import com.zhang.bms.control.BorrowTableHelper;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.control.UserTableHelper;
+import com.zhang.bms.model.Book;
+import com.zhang.bms.model.Borrow;
+import com.zhang.bms.model.GetTime;
+import com.zhang.bms.model.SqTipsDialog;
+
+import java.util.ArrayList;
+
+public class BookActivity extends AppCompatActivity implements View.OnClickListener {
+    private TextView page;
+    private TextView bookname;
+    private TextView author;
+    private TextView category;
+    private TextView inventory;
+    private TextView synopsis;
+    private TextView press;
+    private TextView publicationtime;
+    private ImageView back;
+    private Button collect;
+    private Button collected;
+    private Button borrow;
+    private Button borrownull;
+    private String bid;
+    private String uid;
+    private String collections;
+    final DBHelper dbHelper= new DBHelper(this,"bms",null,1);
+    BookTableHelper bookTableHelper = new BookTableHelper();
+    UserTableHelper userTableHelper = new UserTableHelper();
+    BorrowTableHelper borrowTableHelper = new BorrowTableHelper();
+    private ArrayList<Book> bookArrayList;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_book);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+
+        SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+        uid = sharedPreferences.getString("uid","-1");
+        Intent intent = getIntent();
+        bid = intent.getStringExtra("bid");
+
+        collections = userTableHelper.FindCollectionBooks(dbHelper,uid);
+        if (collections.contains("/"+bid+"/")){
+            collect.setVisibility(View.GONE);
+            collected.setVisibility(View.VISIBLE);
+        }else {
+            collected.setVisibility(View.GONE);
+            collect.setVisibility(View.VISIBLE);
+        }
+        bookArrayList = bookTableHelper.BookDetails(dbHelper,bid);
+        bookname.setText(bookArrayList.get(0).getBookname());
+        author.setText(bookArrayList.get(0).getAuthor());
+        category.setText(bookArrayList.get(0).getCategory());
+        inventory.setText("馆存："+bookArrayList.get(0).getinventory()+"");
+        synopsis.setText("\t\t\t\t" + bookArrayList.get(0).getSynopsis());
+        press.setText(bookArrayList.get(0).getPress());
+        publicationtime.setText(bookArrayList.get(0).getPublicationtime());
+        page.setText(bookArrayList.get(0).getPage()+" 页");
+        if (bookArrayList.get(0).getinventory() != (0)){
+            borrow.setVisibility(View.VISIBLE);
+            borrownull.setVisibility(View.GONE);
+        }else {
+            borrownull.setVisibility(View.VISIBLE);
+            borrow.setVisibility(View.GONE);
+        }
+    }
+    private void InitView(){
+        back = findViewById(R.id.iv_back);
+        back.setOnClickListener(this);
+        bookname = findViewById(R.id.book_bookname);
+        author = findViewById(R.id.book_author);
+        category = findViewById(R.id.book_category);
+        inventory = findViewById(R.id.book_price);
+        synopsis = findViewById(R.id.book_synopsis);
+        press = findViewById(R.id.book_press);
+        publicationtime = findViewById(R.id.book_publicationtime);
+        page = findViewById(R.id.book_page);
+        collect = findViewById(R.id.collect);
+        collect.setOnClickListener(this);
+        collected = findViewById(R.id.collected);
+        collected.setOnClickListener(this);
+        borrow = findViewById(R.id.borrow);
+        borrow.setOnClickListener(this);
+        borrownull = findViewById(R.id.borrownull);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.borrow:
+                final SqTipsDialog sqTipsDialog = new SqTipsDialog(this);
+                sqTipsDialog.setTile("提示").setMsg("是否确定借阅此书。书本借阅后需在一个月之内归还。")
+                        .setOnCanlceListener(new View.OnClickListener() {
+                            @Override
+                            public void onClick(View v) {
+                                sqTipsDialog.dismiss();
+                            }
+                        });
+                sqTipsDialog.setOnSureListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        int new_inventory = bookArrayList.get(0).getinventory() - 1;
+                        bookTableHelper.BorrowBook(dbHelper,bid,new_inventory);
+                        Borrow borrow = new Borrow();
+                        borrow.setBookid(bid);
+                        borrow.setUserid(uid);
+                        borrow.setBostate(0);
+                        GetTime getTime = new GetTime();
+                        borrow.setBotime(getTime.BorrowTime());
+                        borrowTableHelper.AddBorrow(dbHelper,borrow);
+                        sqTipsDialog.dismiss();
+                        Intent intent = new Intent(BookActivity.this,BorrowSuccessActivity.class);
+                        intent.putExtra("bid",bid);
+                        startActivity(intent);
+                    }
+                });
+                sqTipsDialog.show();
+                break;
+            case R.id.collected:
+                String uncollection = "/"+bid+"/";
+                String new_collection = collections.replace(uncollection,"");
+                userTableHelper.CollectBook(dbHelper,uid,new_collection);
+                collected.setVisibility(View.GONE);
+                collect.setVisibility(View.VISIBLE);
+                Toast.makeText(BookActivity.this,"取消收藏成功",Toast.LENGTH_SHORT).show();
+                break;
+            case R.id.collect:
+                String collection = "/"+bid+"/";
+                userTableHelper.CollectBook(dbHelper,uid,collections+collection);
+                collect.setVisibility(View.GONE);
+                collected.setVisibility(View.VISIBLE);
+                Toast.makeText(BookActivity.this,"收藏成功",Toast.LENGTH_SHORT).show();
+                break;
+            case R.id.iv_back:
+                Back();
+                break;
+        }
+    }
+    private void Back(){
+        Intent intent = getIntent();
+        String code = intent.getStringExtra("startActivityCode");
+        if (code.equals("favorite")){
+            Intent back = new Intent(this,FavoriteActivity.class);
+            startActivity(back);
+        }else {
+            finish();
+        }
+    }
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();//注释掉这行,back键不退出activity
+        Back();
+    }
+}

bms/src/main/java/com/zhang/bms/ui/BookManageActivity.java

@@ -0,0 +1,101 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.ListView;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.BookTableHelper;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.model.Book;
+import com.zhang.bms.model.BookListAdapter;
+
+import java.util.ArrayList;
+
+public class BookManageActivity extends AppCompatActivity implements View.OnClickListener {
+    private LinearLayout back;
+    private LinearLayout um;
+    private LinearLayout bom;
+    private ArrayList<Book> booklist;
+    private ListView listView;
+    private ImageView add;
+    final DBHelper dbHelper= new DBHelper(BookManageActivity.this,"bms",null,1);
+    private BookTableHelper bookTableHelper = new BookTableHelper();
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_book_manage);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+        InitBookList();
+    }
+
+    public void InitView(){
+        listView = findViewById(R.id.booklist_listview);
+        add = findViewById(R.id.btn_addbook);
+        add.setOnClickListener(this);
+        back = findViewById(R.id.back);
+        back.setOnClickListener(this);
+        um = findViewById(R.id.goto_um);
+        um.setOnClickListener(this);
+        bom = findViewById(R.id.goto_bom);
+        bom.setOnClickListener(this);
+    }
+
+    private void InitBookList(){
+        booklist = bookTableHelper.BookList(dbHelper);
+        BookListAdapter adapter = new BookListAdapter(this,booklist);
+        ListView book = findViewById(R.id.booklist_listview);
+        book.setAdapter(adapter);
+        book.setOnItemClickListener(new BookOnClickListener());
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.goto_bom:
+                Intent goto_bom = new Intent(this,BorrowManageActivity.class);
+                startActivity(goto_bom);
+                break;
+            case R.id.goto_um:
+                Intent goto_um = new Intent(this,UserManageActivity.class);
+                startActivity(goto_um);
+                break;
+            case R.id.back:
+                Intent back = new Intent(this,PersonalCenterActivity.class);
+                startActivity(back);
+                break;
+            case R.id.btn_addbook:
+                Intent goto_ABA = new Intent(BookManageActivity.this,AddBookActivity.class);
+                startActivity(goto_ABA);
+                break;
+        }
+    }
+
+    private class BookOnClickListener implements AdapterView.OnItemClickListener{
+
+        @Override
+        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+            String bid = booklist.get(position).getId();
+            Intent intent = new Intent(BookManageActivity.this,ManageBookDetailsActivity.class);
+            intent.putExtra("bid",bid);
+            startActivity(intent);
+        }
+    }
+    @Override
+    public void onBackPressed() {
+        // super.onBackPressed();//注释掉这行,back键不退出activity
+        Intent goto_MIA = new Intent(BookManageActivity.this,ManageIndexActivity.class);
+        startActivity(goto_MIA);
+    }
+}

bms/src/main/java/com/zhang/bms/ui/BorrowManageActivity.java

@@ -0,0 +1,121 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.LinearLayout;
+import android.widget.ListView;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.BookTableHelper;
+import com.zhang.bms.control.BorrowTableHelper;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.model.Borrow;
+import com.zhang.bms.model.BorrowListAdapter;
+import com.zhang.bms.model.BorrowManageListAdapter;
+import com.zhang.bms.model.GetTime;
+import com.zhang.bms.model.SqTipsDialog;
+
+import java.util.ArrayList;
+
+public class BorrowManageActivity extends AppCompatActivity implements View.OnClickListener {
+    private ListView list;
+    private LinearLayout back;
+    private LinearLayout um;
+    private LinearLayout bm;
+    final DBHelper dbHelper= new DBHelper(this,"bms",null,1);
+    private BorrowTableHelper borrowTableHelper = new BorrowTableHelper();
+    private BookTableHelper bookTableHelper = new BookTableHelper();
+    private ArrayList<Borrow> arrayList;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_borrow_manage);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+        InitList();
+    }
+
+    private void InitView(){
+        list = findViewById(R.id.borrowmanage_list);
+    }
+
+    private void InitList(){
+        arrayList = borrowTableHelper.AllBorrow(dbHelper);
+        BorrowManageListAdapter adapter = new BorrowManageListAdapter(this,arrayList);
+        ListView book = findViewById(R.id.borrowmanage_list);
+        book.setAdapter(adapter);
+        book.setOnItemClickListener(new BackBook());
+        back = findViewById(R.id.back);
+        back.setOnClickListener(this);
+        um = findViewById(R.id.goto_um);
+        um.setOnClickListener(this);
+        bm = findViewById(R.id.goto_bm);
+        bm.setOnClickListener(this);
+    }
+    private class BackBook implements AdapterView.OnItemClickListener{
+
+        @Override
+        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+            final String boid = arrayList.get(position).getBoid();
+            final String bid = arrayList.get(position).getBookid();
+            int state = arrayList.get(position).getBostate();
+            final SqTipsDialog sqTipsDialog = new SqTipsDialog(BorrowManageActivity.this);
+            if (state == 0){
+                sqTipsDialog.setTile("提示").setMsg("请确认用户是否还书。")
+                        .setOnCanlceListener(new View.OnClickListener() {
+                            @Override
+                            public void onClick(View v) {
+                                sqTipsDialog.dismiss();
+                            }
+                        });
+                sqTipsDialog.setOnSureListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+                        String reviewer = sharedPreferences.getString("username","-1");
+                        GetTime getTime = new GetTime();
+                        String backtime = getTime.BorrowTime();
+                        borrowTableHelper.ReturnBook(dbHelper,boid,backtime,reviewer);
+                        int inventory =  bookTableHelper.FindInventory(dbHelper,bid) + 1;
+                        bookTableHelper.BorrowBook(dbHelper,bid,inventory);
+                        Intent intent = new Intent(BorrowManageActivity.this,ReturnSuccessActivity.class);
+                        startActivity(intent);
+                        sqTipsDialog.dismiss();
+                    }
+                });
+                sqTipsDialog.show();
+            }
+        }
+    }
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.back:
+                Intent back = new Intent(this,PersonalCenterActivity.class);
+                startActivity(back);
+                break;
+            case R.id.goto_um:
+                Intent goto_um = new Intent(this,UserManageActivity.class);
+                startActivity(goto_um);
+                break;
+            case R.id.goto_bm:
+                Intent goto_bm = new Intent(this,BookManageActivity.class);
+                startActivity(goto_bm);
+                break;
+        }
+    }
+    @Override
+    public void onBackPressed() {
+        //super.onBackPressed();//注释掉这行,back键不退出activity
+        Intent intent = new Intent(this,ManageIndexActivity.class);
+        startActivity(intent);
+    }
+}

bms/src/main/java/com/zhang/bms/ui/BorrowSuccessActivity.java

@@ -0,0 +1,44 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.ImageView;
+
+import com.zhang.bms.R;
+
+public class BorrowSuccessActivity extends AppCompatActivity implements View.OnClickListener {
+    private String bid;
+    private String code;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_borrow_success);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        Intent intent = getIntent();
+        bid = intent.getStringExtra("bid");
+        code = intent.getStringExtra("startActivityCode");
+        InitView();
+    }
+    private void InitView(){
+
+    }
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+
+        }
+    }
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();//注释掉这行,back键不退出activity
+        Intent intent = new Intent(this,ShowBooksActivity.class);
+        startActivity(intent);
+    }
+
+}

bms/src/main/java/com/zhang/bms/ui/ChangePasswordActivity.java

@@ -0,0 +1,104 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.control.UserTableHelper;
+
+public class ChangePasswordActivity extends AppCompatActivity implements View.OnClickListener {
+    private ImageView back;
+    private Button commit;
+    private EditText original_pass;
+    private EditText new_pass;
+    private EditText new_pass2;
+    private TextView forget;
+    final DBHelper dbHelper = new DBHelper(ChangePasswordActivity.this,"bms",null,1);
+    UserTableHelper userTableHelper = new UserTableHelper();
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_change_password);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+    }
+    private void InitView(){
+        back = findViewById(R.id.iv_back);
+        back.setOnClickListener(this);
+        commit = findViewById(R.id.btn_commit);
+        commit.setOnClickListener(this);
+        original_pass = findViewById(R.id.original_pass);
+        new_pass = findViewById(R.id.new_pass);
+        new_pass2 = findViewById(R.id.new_pass2);
+        forget = findViewById(R.id.forget_password);
+        forget.setOnClickListener(this);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.forget_password:
+                Intent intent2 = new Intent(ChangePasswordActivity.this,ForgetPassActivity.class);
+                startActivity(intent2);
+                break;
+            case R.id.btn_commit:
+                    String opass = original_pass.getText().toString();
+                    String npass = new_pass.getText().toString();
+                    String npass2 = new_pass2.getText().toString();
+                    if (npass.equals(npass2)){
+                        SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+                        final SharedPreferences.Editor editor = sharedPreferences.edit();
+                        String username = sharedPreferences.getString("username","-1");
+                        boolean able_change = userTableHelper.Login(dbHelper,username,opass);
+                        if (able_change == true){
+                            userTableHelper.ChangePass(dbHelper,username,npass);
+                            AlertDialog.Builder builder = new AlertDialog.Builder(this);
+                            builder.setTitle("修改成功").setMessage("密码修改成功！\n请重新登录。");
+                            builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
+                                @Override
+                                public void onClick(DialogInterface dialog, int which) {
+                                    editor.clear();
+                                    editor.commit();
+                                    Intent intent1 = new Intent(ChangePasswordActivity.this,LoginActivity.class);
+                                    startActivity(intent1);
+                                }
+                            });
+                            builder.show();
+                        }else {
+                            AlertDialog.Builder builder = new AlertDialog.Builder(this);
+                            builder.setTitle("修改失败").setMessage("原密码不正确。");
+                            builder.show();
+                        }
+                    }else {
+                        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+                        builder.setTitle("修改失败").setMessage("两次输入的新密码不一致。");
+                        builder.show();
+                    }
+                break;
+            case R.id.iv_back:
+                Intent intent = new Intent(ChangePasswordActivity.this,PersonalCenterActivity.class);
+                startActivity(intent);
+                break;
+        }
+    }
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();//注释掉这行,back键不退出activity
+        Intent intent = new Intent(ChangePasswordActivity.this,PersonalCenterActivity.class);
+        startActivity(intent);
+    }
+}

bms/src/main/java/com/zhang/bms/ui/Change_synopsisActivity.java

@@ -0,0 +1,55 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.zhang.bms.R;
+
+public class Change_synopsisActivity extends AppCompatActivity implements View.OnClickListener {
+    private ImageView back;
+    private EditText synopsis;
+    private TextView save;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_change_synopsis);
+        //状态栏
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+        Intent intent = getIntent();
+        String o_synopsis = intent.getStringExtra("o_synopsis");
+        synopsis.setText(o_synopsis);
+    }
+    private void InitView(){
+        synopsis = findViewById(R.id.synopsis);
+        back = findViewById(R.id.iv_back);
+        back.setOnClickListener(this);
+        save = findViewById(R.id.save);
+        save.setOnClickListener(this);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.save:
+                String n_synopis = synopsis.getText().toString();
+                Intent intent = new Intent();
+                intent.putExtra("n_synopsis",n_synopis);
+                setResult(1,intent);
+                finish();
+                break;
+            case R.id.iv_back:
+                finish();
+                break;
+        }
+    }
+}

bms/src/main/java/com/zhang/bms/ui/FavoriteActivity.java

@@ -0,0 +1,97 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.graphics.Color;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.GridView;
+import android.widget.ImageView;
+import android.widget.Toast;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.BookTableHelper;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.control.UserTableHelper;
+import com.zhang.bms.model.Book;
+import com.zhang.bms.model.BookGridAdapter;
+import com.zhang.bms.model.StringTrans;
+
+import java.util.ArrayList;
+
+public class FavoriteActivity extends AppCompatActivity implements View.OnClickListener {
+    private ImageView isnull;
+    private ImageView back;
+    private GridView list;
+    final DBHelper dbHelper= new DBHelper(this,"bms",null,1);
+    private BookTableHelper bookTableHelper = new BookTableHelper();
+    UserTableHelper userTableHelper = new UserTableHelper();
+    private ArrayList<Book> bookArrayList;
+    private String uid;
+    private String collections;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_favorite);
+        //状态栏
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+        SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+        uid = sharedPreferences.getString("uid","-1");
+        collections = userTableHelper.FindCollectionBooks(dbHelper,uid);
+        InitList();
+    }
+    private void InitView(){
+        back = findViewById(R.id.iv_back);
+        back.setOnClickListener(this);
+        list = findViewById(R.id.collectionlist);
+        isnull = findViewById(R.id.isnull);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.iv_back:
+                Intent back = new Intent(this,PersonalCenterActivity.class);
+                startActivity(back);
+                break;
+        }
+    }
+    private void InitList(){
+        StringTrans stringTrans = new StringTrans();
+        String searcher="";
+        if (!collections.equals("")){
+            isnull.setVisibility(View.INVISIBLE);
+            searcher = stringTrans.StringTrans(collections);
+        }
+        bookArrayList = bookTableHelper.SearchCollection(dbHelper,searcher);
+        BookGridAdapter adapter = new BookGridAdapter(this,bookArrayList);
+        GridView book = findViewById(R.id.collectionlist);
+        book.setAdapter(adapter);
+        book.setOnItemClickListener(new BookOnClickListener());
+    }
+    private class BookOnClickListener implements AdapterView.OnItemClickListener{
+
+        @Override
+        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+            String bid = bookArrayList.get(position).getId();
+            Intent intent = new Intent(FavoriteActivity.this,BookActivity.class);
+            intent.putExtra("bid",bid);
+            intent.putExtra("startActivityCode","favorite");
+            startActivity(intent);
+        }
+    }
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();//注释掉这行,back键不退出activity
+        Intent intent = new Intent(this,PersonalCenterActivity.class);
+        startActivity(intent);
+    }
+}

bms/src/main/java/com/zhang/bms/ui/ForgetPassActivity.java

@@ -0,0 +1,131 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.Spinner;
+import android.widget.TextView;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.control.UserTableHelper;
+import com.zhang.bms.model.SqTipsDialog;
+
+public class ForgetPassActivity extends AppCompatActivity implements View.OnClickListener {
+    private TextView passlock;
+    private EditText passkey;
+    private EditText newpass;
+    private EditText renewpass;
+    private ImageView back;
+    private Button commit;
+    final DBHelper dbHelper = new DBHelper(ForgetPassActivity.this,"bms",null,1);
+    UserTableHelper userTableHelper = new UserTableHelper();
+    private String update_username;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_forget_pass);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+        Intent get_username = getIntent();
+        String o_username = get_username.getStringExtra("o_username");
+        SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+        SharedPreferences.Editor editor = sharedPreferences.edit();
+        String username = sharedPreferences.getString("username","-1");
+        if (username.equals("-1")){
+            update_username = o_username;
+        }else {
+            update_username = username;
+        }
+        String str_passlock = userTableHelper.FindPassLock(dbHelper,update_username);
+        if (!str_passlock.equals("-1") && !str_passlock.equals("请选择密保问题（非必选）")){
+            passlock.setText(str_passlock);
+        }else{
+            final SqTipsDialog sqTipsDialog = new SqTipsDialog(this);
+            sqTipsDialog.setCancelable(false);
+            sqTipsDialog.setOnSureListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    finish();
+                    sqTipsDialog.dismiss();
+                }
+            });
+            sqTipsDialog.setOnCanlceListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    finish();
+                    sqTipsDialog.dismiss();
+                }
+            });
+            sqTipsDialog.setTile("提示")
+                .setMsg("用户不存在或未设置密保问题，请联系管理员修改密码。")
+                .show();
+        }
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.iv_back:
+                ForgetPassActivity.this.finish();
+                break;
+            case R.id.btn_commit:
+                String str_passlock = passlock.getText().toString();
+                String str_passkey = passkey.getText().toString();
+                String str_pass = newpass.getText().toString();
+                String str_pass2 = renewpass.getText().toString();
+                if (str_pass.equals(str_pass2)){
+                    boolean result = userTableHelper.PassLock(dbHelper,update_username,str_passlock,str_passkey);
+                    if (result == true){
+                        SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+                        final SharedPreferences.Editor editor = sharedPreferences.edit();
+                        userTableHelper.ChangePass(dbHelper,update_username,str_pass);
+                        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+                        builder.setTitle("修改成功").setMessage("密码修改成功！\n请重新登录。");
+                        builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                editor.clear();
+                                editor.commit();
+                                Intent intent1 = new Intent(ForgetPassActivity.this,LoginActivity.class);
+                                startActivity(intent1);
+                            }
+                        });
+                        builder.show();
+                    }else {
+                        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+                        builder.setTitle("修改失败").setMessage("密保答案不正确。");
+                        builder.show();
+                    }
+                }else {
+                    AlertDialog.Builder builder = new AlertDialog.Builder(this);
+                    builder.setTitle("修改失败").setMessage("两次输入的新密码不一致。");
+                    builder.show();
+                }
+
+                break;
+        }
+    }
+
+    private void InitView(){
+        passlock = findViewById(R.id.passlock);
+        passkey = findViewById(R.id.passkey);
+        newpass = findViewById(R.id.new_pass);
+        renewpass = findViewById(R.id.new_pass2);
+        commit = findViewById(R.id.btn_commit);
+        commit.setOnClickListener(this);
+        back = findViewById(R.id.iv_back);
+        back.setOnClickListener(this);
+    }
+}

bms/src/main/java/com/zhang/bms/ui/InputUsernameActivity.java

@@ -0,0 +1,69 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ImageView;
+
+import com.zhang.bms.R;
+import com.zhang.bms.model.SqTipsDialog;
+
+public class InputUsernameActivity extends AppCompatActivity implements View.OnClickListener {
+    private ImageView back;
+    private EditText username;
+    private Button commit;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_input_username);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+    }
+    private void InitView(){
+        back = findViewById(R.id.iv_back);
+        back.setOnClickListener(this);
+        username = findViewById(R.id.username);
+        commit = findViewById(R.id.btn_commit);
+        commit.setOnClickListener(this);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.btn_commit:
+                String str_username = username.getText().toString();
+                if (!str_username.isEmpty()){
+                    Intent goto_update = new Intent(this,ForgetPassActivity.class);
+                    goto_update.putExtra("o_username",str_username);
+                    startActivity(goto_update);
+                }else {
+                    final SqTipsDialog sqTipsDialog = new SqTipsDialog(this);
+                    sqTipsDialog.setCancelable(true);
+                    sqTipsDialog.setCancelbtnVisible(false)
+                        .setSurebtnVisible(false)
+                        .setTile("提示")
+                        .setMsg("请填写需要申诉的账号用户名。")
+                        .show();
+                }
+                break;
+            case R.id.iv_back:
+                Intent intent = new Intent(InputUsernameActivity.this,LoginActivity.class);
+                startActivity(intent);
+                break;
+        }
+    }
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();//注释掉这行,back键不退出activity
+        Intent intent = new Intent(InputUsernameActivity.this,LoginActivity.class);
+        startActivity(intent);
+    }
+}

bms/src/main/java/com/zhang/bms/ui/LoginActivity.java

@@ -0,0 +1,161 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.view.Window;
+import android.view.WindowManager;
+import android.widget.Button;
+import android.widget.CheckBox;
+import android.widget.EditText;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.control.UserTableHelper;
+import com.zhang.bms.model.SqTipsDialog;
+import com.zhang.bms.model.User;
+
+import java.util.ArrayList;
+
+public class LoginActivity extends AppCompatActivity implements View.OnClickListener {
+    private Button login;
+    private TextView forget;
+    private EditText username;
+    private EditText password;
+    private CheckBox save;
+    private TextView goto_regist;
+    private ArrayList<User> userArrayList;
+    final DBHelper dbHelper = new DBHelper(LoginActivity.this,"bms",null,1);
+    UserTableHelper userTableHelper = new UserTableHelper();
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_login);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+        InitAccount();
+    }
+
+    private void InitView(){
+        login = findViewById(R.id.login_btn_login);
+        login.setOnClickListener(this);
+        username = findViewById(R.id.login_username);
+        password = findViewById(R.id.login_password);
+        save = findViewById(R.id.login_saveup);
+        goto_regist = findViewById(R.id.login_to_regist);
+        goto_regist.setOnClickListener(this);
+        forget = findViewById(R.id.forget_password);
+        forget.setOnClickListener(this);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.forget_password:
+                Intent intent2 = new Intent(LoginActivity.this,InputUsernameActivity.class);
+                startActivity(intent2);
+                break;
+            case R.id.login_btn_login:
+                final SqTipsDialog sqTipsDialog = new SqTipsDialog(this);
+                sqTipsDialog.setSurebtnVisible(false);
+                sqTipsDialog.setCancelbtnVisible(false);
+                String str_username = username.getText().toString();
+                String str_password = password.getText().toString();
+                if (!str_username.isEmpty() && !str_password.isEmpty()){
+                    if (str_username.equals("admin") && str_password.equals("123456")){
+                        SaveUP("admin","123456");
+                        SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+                        SharedPreferences.Editor editor = sharedPreferences.edit();
+                        editor.putString("role","MANAGERS");
+                        editor.commit();
+                        Toast.makeText(LoginActivity.this,"欢迎您！管理员！",Toast.LENGTH_SHORT).show();
+                        Intent goto_ManagePage = new Intent(LoginActivity.this,ShowBooksActivity.class);
+                        startActivity(goto_ManagePage);
+                    }else {
+                        boolean loginResult = userTableHelper.Login(dbHelper,str_username,str_password);
+                        if (loginResult == true){
+                            userArrayList = userTableHelper.UserList(dbHelper,str_username);
+                            String user_role = userArrayList.get(0).getRole();
+                            String user_uid = userArrayList.get(0).getId();
+                            String user_passlock = userArrayList.get(0).getPasslock();
+                            SaveUP(str_username,str_password,user_uid,user_role,user_passlock);
+                            Toast.makeText(LoginActivity.this,"登录成功！",Toast.LENGTH_SHORT).show();
+                            if (user_role.equals("MANAGERS")){
+                                SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+                                SharedPreferences.Editor editor = sharedPreferences.edit();
+                                editor.putString("role","MANAGERS");
+                                editor.commit();
+                                Intent goto1 = new Intent(LoginActivity.this,ShowBooksActivity.class);
+                                startActivity(goto1);
+                            }else {
+                                SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+                                SharedPreferences.Editor editor = sharedPreferences.edit();
+                                editor.putString("role","USER");
+                                editor.commit();
+                                Intent goto2 = new Intent(LoginActivity.this,ShowBooksActivity.class);
+                                startActivity(goto2);
+                            }
+                        }else {
+                            sqTipsDialog.setMsg("登录失败！用户名不存在或密码错误！");
+                            sqTipsDialog.show();
+                        }
+                    }
+                }else {
+                    sqTipsDialog.setMsg("请填写用户名或密码！");
+                    sqTipsDialog.show();
+                }
+                break;
+            case R.id.login_to_regist:
+                Intent intent = new Intent(LoginActivity.this,RegisterActivity.class);
+                startActivity(intent);
+                break;
+        }
+    }
+
+    private void SaveUP(String username,String password){
+        SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+        SharedPreferences.Editor editor = sharedPreferences.edit();
+        editor.putString("username",username);
+        editor.putString("password",password);
+        editor.commit();
+        if (save.isChecked()){
+            editor.putBoolean("savestate",true);
+        }
+    }
+    private void SaveUP(String username,String password,String uid,String role,String passlock){
+        SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+        SharedPreferences.Editor editor = sharedPreferences.edit();
+        editor.putString("username",username);
+        editor.putString("password",password);
+        editor.putString("uid",uid);
+        editor.putString("role",role);
+        editor.putString("passlock",passlock);
+        editor.commit();
+        if (save.isChecked()){
+            editor.putBoolean("savestate",true);
+        }
+    }
+
+    private void InitAccount(){
+        SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+        String save_username = sharedPreferences.getString("username","null");
+        String save_password = sharedPreferences.getString("password","null");
+        boolean savestate = sharedPreferences.getBoolean("savestate",false);
+        if (savestate == true){
+            username.setText(save_username);
+            password.setText(save_password);
+            save.setChecked(true);
+        }else {
+            save.setChecked(false);
+        }
+    }
+}

bms/src/main/java/com/zhang/bms/ui/ManageBookDetailsActivity.java

@@ -0,0 +1,215 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.RelativeLayout;
+import android.widget.Spinner;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.BookTableHelper;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.model.Book;
+import com.zhang.bms.model.CustomEditTextDialog;
+import com.zhang.bms.model.CustomSpinnerDialog;
+import com.zhang.bms.model.SqTipsDialog;
+
+import java.util.ArrayList;
+
+public class ManageBookDetailsActivity extends AppCompatActivity implements View.OnClickListener {
+    private ImageView back;
+    private EditText bookname;
+    private EditText ISBN;
+    private EditText author;
+    private EditText page;
+    private EditText press;
+    private EditText publicationtime;
+    private EditText category;
+    private TextView synopsis;
+    private EditText inventory;
+    private String get_bid;
+    private String o_ISBN;
+    private String o_bookname;
+    private String o_author;
+    private String o_press;
+    private String o_publicationtime;
+    private String o_category;
+    private String o_synopsis;
+    private String o_inventory;
+    private String o_page;
+    private Button save;
+    private Button delete;
+    private RelativeLayout change_synopsis;
+    final DBHelper dbHelper= new DBHelper(this,"bms",null,1);
+    BookTableHelper bookTableHelper = new BookTableHelper();
+    private ArrayList<Book> bookArrayList;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_manage_book_details);
+
+        InitView();
+        Intent intent = getIntent();
+        //状态栏
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        //取bid，查询图书详细信息
+        get_bid = intent.getStringExtra("bid");
+        bookArrayList = bookTableHelper.BookDetails(dbHelper,get_bid);
+        bookname.setText(bookArrayList.get(0).getBookname());
+        ISBN.setText(bookArrayList.get(0).getISBN());
+        author.setText(bookArrayList.get(0).getAuthor());
+        page.setText(bookArrayList.get(0).getPage()+"");
+        press.setText(bookArrayList.get(0).getPress());
+        publicationtime.setText(bookArrayList.get(0).getPublicationtime());
+        category.setText(bookArrayList.get(0).getCategory());
+        synopsis.setText(bookArrayList.get(0).getSynopsis());
+        inventory.setText(bookArrayList.get(0).getinventory()+"");
+        //原数据缓存
+        o_ISBN = ISBN.getText().toString();
+        o_bookname = bookname.getText().toString();
+        o_author = author.getText().toString();
+        o_press = press.getText().toString();
+        o_publicationtime = publicationtime.getText().toString();
+        o_category = category.getText().toString();
+        o_synopsis = synopsis.getText().toString();
+        o_inventory = inventory.getText().toString();
+        o_page = page.getText().toString();
+    }
+
+    private void InitView(){
+        bookname = findViewById(R.id.bookdetails_bookname);
+        ISBN = findViewById(R.id.bookdetails_bid);
+        author = findViewById(R.id.bookdetails_author);
+        press = findViewById(R.id.bookdetails_press);
+        page = findViewById(R.id.bookdetails_page);
+        publicationtime = findViewById(R.id.bookdetails_publicationtime);
+        category = findViewById(R.id.bookdetails_category);
+        synopsis = findViewById(R.id.bookdetails_synopsis);
+        inventory = findViewById(R.id.bookdetails_price);
+        save = findViewById(R.id.bookdetails_btn_save);
+        save.setOnClickListener(this);
+        delete = findViewById(R.id.bookdetails_btn_delete);
+        delete.setOnClickListener(this);
+        back = findViewById(R.id.iv_back);
+        back.setOnClickListener(this);
+        change_synopsis = findViewById(R.id.change_synopsis);
+        change_synopsis.setOnClickListener(this);
+    }
+
+    @Override
+    public void onClick(View v) {
+        final SqTipsDialog sqTipsDialog = new SqTipsDialog(this);
+        switch (v.getId()){
+            case R.id.change_synopsis:
+                Intent change_s = new Intent(this,Change_synopsisActivity.class);
+                change_s.putExtra("o_synopsis",synopsis.getText().toString());
+                startActivityForResult(change_s,1);
+                break;
+            case R.id.iv_back:
+                Intent intent = new Intent(ManageBookDetailsActivity.this,BookManageActivity.class);
+                startActivity(intent);
+                break;
+            case R.id.bookdetails_btn_save:
+                final String s_ISBN = ISBN.getText().toString();
+                final String s_bookname = bookname.getText().toString();
+                final String s_author = author.getText().toString();
+                final String s_press = press.getText().toString();
+                final String s_publicationtime = publicationtime.getText().toString();
+                final String s_category = category.getText().toString();
+                final String s_page = page.getText().toString();
+                final String s_synopsis = synopsis.getText().toString();
+                final String s_inventory = inventory.getText().toString();
+                if (!s_bookname.equals(o_bookname) || !s_author.equals(o_author) || !s_press.equals(o_press)
+                        || !s_publicationtime.equals(o_publicationtime) || !s_category.equals(o_category)
+                        || !s_page.equals(o_page) || !s_synopsis.equals(o_synopsis)
+                        || !s_inventory.equals(o_inventory) || !s_ISBN.equals(o_ISBN)){
+                    sqTipsDialog.setTitle("提示");
+                    sqTipsDialog.setMsg("您正在试图更改图书信息，是否保存更改？")
+                            .setCancelable(true);
+                    sqTipsDialog.setOnCanlceListener(new View.OnClickListener() {
+                        @Override
+                        public void onClick(View v) {
+                            Toast.makeText(ManageBookDetailsActivity.this,"未作出任何修改。",Toast.LENGTH_SHORT).show();
+                            Intent back = new Intent(ManageBookDetailsActivity.this,BookManageActivity.class);
+                            startActivity(back);
+                        }
+                    });
+                    sqTipsDialog.setOnSureListener(new View.OnClickListener() {
+                        @Override
+                        public void onClick(View v) {
+                            boolean result = bookTableHelper.UpdateBook(dbHelper,get_bid,s_ISBN,s_bookname,
+                                    s_author, s_press, s_publicationtime, s_category,s_synopsis,
+                                    Integer.parseInt(s_inventory), Integer.parseInt(s_page));
+                            if (result == true){
+                                Toast.makeText(ManageBookDetailsActivity.this,"修改成功！",Toast.LENGTH_SHORT).show();
+                                Intent goto_list = new Intent(ManageBookDetailsActivity.this,BookManageActivity.class);
+                                startActivity(goto_list);
+                            }else {
+                                Toast.makeText(ManageBookDetailsActivity.this,"修改失败！",Toast.LENGTH_SHORT).show();
+                            }
+                        }
+                    });
+                    sqTipsDialog.show();
+                }else {
+                    Toast.makeText(ManageBookDetailsActivity.this,"未作出任何修改。",Toast.LENGTH_SHORT).show();
+                    Intent back = new Intent(ManageBookDetailsActivity.this,BookManageActivity.class);
+                    startActivity(back);
+                }
+                break;
+            case R.id.bookdetails_btn_delete:
+                sqTipsDialog.setTitle("提示");
+                sqTipsDialog.setMsg("确认删除《" +o_bookname+ "》？此操作不可逆！")
+                        .setCancelable(true);
+                sqTipsDialog.setOnCanlceListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        sqTipsDialog.dismiss();
+                    }
+                });
+                sqTipsDialog.setOnSureListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        bookTableHelper.DeleteBook(dbHelper,get_bid);
+                        Toast.makeText(ManageBookDetailsActivity.this,"删除成功！",Toast.LENGTH_SHORT).show();
+                        Intent back = new Intent(ManageBookDetailsActivity.this,BookManageActivity.class);
+                        startActivity(back);
+                    }
+                });
+                sqTipsDialog.show();
+                break;
+        }
+    }
+    @Override
+    protected void onActivityResult(int requestCode,int resultCode,Intent data) {
+
+        super.onActivityResult(requestCode, resultCode, data);
+        if (data != null){
+            if (requestCode == 1){
+                if (resultCode ==1){
+                    String n_synopsis = (String) data.getSerializableExtra("n_synopsis");
+                    synopsis.setText(n_synopsis);
+                }
+            }
+        }
+    }
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();//注释掉这行,back键不退出activity
+        Intent intent = new Intent(ManageBookDetailsActivity.this,BookManageActivity.class);
+        startActivity(intent);
+    }
+}

bms/src/main/java/com/zhang/bms/ui/ManageIndexActivity.java

@@ -0,0 +1,187 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.BookTableHelper;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.control.UserTableHelper;
+import com.zhang.bms.model.Book;
+import com.zhang.bms.model.SqTipsDialog;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+public class ManageIndexActivity extends AppCompatActivity implements View.OnClickListener {
+    private Button add_default;
+    private ImageView iv_back;
+    private LinearLayout back;
+    private LinearLayout bm;
+    private LinearLayout um;
+    private LinearLayout bom;
+    final DBHelper dbHelper= new DBHelper(ManageIndexActivity.this,"bms",null,1);
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_manage_index);
+        //状态栏文字改为黑色
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+        //判断创建初始数据按钮是否可点击
+        SharedPreferences sharedPreferences = getSharedPreferences("system",MODE_PRIVATE);
+        boolean default_data = sharedPreferences.getBoolean("default_data",false);
+        if (default_data == true){
+            add_default.setVisibility(View.GONE);
+        }
+    }
+    //初始化控件
+    public void InitView(){
+        back = findViewById(R.id.back);
+        back.setOnClickListener(this);
+        iv_back = findViewById(R.id.iv_back);
+        iv_back.setOnClickListener(this);
+        bm = findViewById(R.id.goto_bm);
+        bm.setOnClickListener(this);
+        um = findViewById(R.id.goto_um);
+        um.setOnClickListener(this);
+        bom = findViewById(R.id.goto_bom);
+        bom.setOnClickListener(this);
+        add_default = findViewById(R.id.add_default_data);
+        add_default.setOnClickListener(this);
+    }
+    //点击事件
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.goto_bom:
+                Intent goto_Bom = new Intent(this,BorrowManageActivity.class);
+                startActivity(goto_Bom);
+                break;
+            case R.id.add_default_data:
+                String b1_ISBN = this.getString(R.string.dt_1_ISBN);
+                String b1_bn = this.getString(R.string.dt_1_bookname);
+                String b1_a = this.getString(R.string.dt_1_author);
+                String b1_ca = this.getString(R.string.dt_1_catogory);
+                String b1_p = this.getString(R.string.dt_1_press);
+                String b1_pt = this.getString(R.string.dt_1_publicationtime);
+                int b1_page = Integer.parseInt(this.getString(R.string.dt_1_page));
+                String b1_s = this.getString(R.string.dt_1_synopsis);
+                int b1_in = Integer.parseInt(this.getString(R.string.dt_1_inventory));
+
+                String b2_ISBN = this.getString(R.string.dt_2_ISBN);
+                String b2_bn = this.getString(R.string.dt_2_bookname);
+                String b2_a = this.getString(R.string.dt_2_author);
+                String b2_ca = this.getString(R.string.dt_2_catogory);
+                String b2_p = this.getString(R.string.dt_2_press);
+                String b2_pt = this.getString(R.string.dt_2_publicationtime);
+                int b2_page = Integer.parseInt(this.getString(R.string.dt_2_page));
+                String b2_s = this.getString(R.string.dt_2_synopsis);
+                int b2_in = Integer.parseInt(this.getString(R.string.dt_2_inventory));
+
+                String b3_ISBN = this.getString(R.string.dt_3_ISBN);
+                String b3_bn = this.getString(R.string.dt_3_bookname);
+                String b3_a = this.getString(R.string.dt_3_author);
+                String b3_ca = this.getString(R.string.dt_3_catogory);
+                String b3_p = this.getString(R.string.dt_3_press);
+                String b3_pt = this.getString(R.string.dt_3_publicationtime);
+                int b3_page = Integer.parseInt(this.getString(R.string.dt_3_page));
+                String b3_s = this.getString(R.string.dt_3_synopsis);
+                int b3_in = Integer.parseInt(this.getString(R.string.dt_3_inventory));
+
+                BookTableHelper bookTableHelper = new BookTableHelper();
+
+                Book book1 = new Book();
+                book1.setBookname(b1_bn);
+                book1.setAuthor(b1_a);
+                book1.setPress(b1_p);
+                book1.setPublicationtime(b1_pt);
+                book1.setCategory(b1_ca);
+                book1.setSynopsis(b1_s);
+                book1.setinventory(b1_in);
+                book1.setISBN(b1_ISBN);
+                book1.setPage(b1_page);
+                boolean AddFlag1 = bookTableHelper.AddBook(dbHelper,book1);
+
+                Book book2 = new Book();
+                book2.setBookname(b2_bn);
+                book2.setAuthor(b2_a);
+                book2.setPress(b2_p);
+                book2.setPublicationtime(b2_pt);
+                book2.setCategory(b2_ca);
+                book2.setSynopsis(b2_s);
+                book2.setinventory(b2_in);
+                book2.setISBN(b2_ISBN);
+                book2.setPage(b2_page);
+                boolean AddFlag2 = bookTableHelper.AddBook(dbHelper,book2);
+
+                Book book3 = new Book();
+                book3.setBookname(b3_bn);
+                book3.setAuthor(b3_a);
+                book3.setPress(b3_p);
+                book3.setPublicationtime(b3_pt);
+                book3.setCategory(b3_ca);
+                book3.setSynopsis(b3_s);
+                book3.setinventory(b3_in);
+                book3.setISBN(b3_ISBN);
+                book3.setPage(b3_page);
+                boolean AddFlag3 = bookTableHelper.AddBook(dbHelper,book3);
+
+                final SqTipsDialog sqTipsDialog = new SqTipsDialog(this);
+                sqTipsDialog.setTitle("提示");
+                sqTipsDialog.setCancelbtnVisible(false);
+                if (AddFlag1 == true && AddFlag2 == true && AddFlag3 == true){
+                    sqTipsDialog.setMsg("插入成功！");
+                    sqTipsDialog.setOnSureListener(new View.OnClickListener() {
+                        @Override
+                        public void onClick(View v) {
+                            SharedPreferences sharedPreferences = getSharedPreferences("system",MODE_PRIVATE);
+                            SharedPreferences.Editor editor = sharedPreferences.edit();
+                            editor.putBoolean("default_data",true);
+                            editor.commit();
+                            Intent back = new Intent(ManageIndexActivity.this,ShowBooksActivity.class);
+                            startActivity(back);
+                        }
+                    });
+                    sqTipsDialog.show();
+                }else {
+                    sqTipsDialog.setMsg("插入失败！");
+                    sqTipsDialog.setSurebtnVisible(false);
+                    sqTipsDialog.show();
+                }
+                break;
+            case R.id.iv_back:
+                Intent ivback = new Intent(this,PersonalCenterActivity.class);
+                startActivity(ivback);
+                break;
+            case R.id.back:
+                Intent back = new Intent(this,PersonalCenterActivity.class);
+                startActivity(back);
+                break;
+            case R.id.goto_bm:
+                Intent goto_BMA = new Intent(this,BookManageActivity.class);
+                startActivity(goto_BMA);
+                break;
+            case R.id.goto_um:
+                Intent goto_UMA = new Intent(ManageIndexActivity.this,UserManageActivity.class);
+                startActivity(goto_UMA);
+                break;
+        }
+    }
+    @Override
+    public void onBackPressed() {
+        //super.onBackPressed();//注释掉这行,back键不退出activity
+        Intent back = new Intent(this,PersonalCenterActivity.class);
+        startActivity(back);
+    }
+}

bms/src/main/java/com/zhang/bms/ui/ManageUserDetailsActivity.java

@@ -0,0 +1,221 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.RelativeLayout;
+import android.widget.Spinner;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.control.UserTableHelper;
+import com.zhang.bms.model.CustomEditTextDialog;
+import com.zhang.bms.model.CustomSpinnerDialog;
+import com.zhang.bms.model.SqTipsDialog;
+import com.zhang.bms.model.User;
+
+import java.util.ArrayList;
+
+public class ManageUserDetailsActivity extends AppCompatActivity implements View.OnClickListener {
+    private ImageView back;
+    private TextView username;
+    private TextView id;
+    private TextView passlock;
+    private TextView passkey;
+    private TextView role;
+    private Button uppass;
+    private Button save;
+    private Button delete;
+    private RelativeLayout uprole;
+    private TextView newpass_tips;
+    private TextView newrole_tips;
+    private String uid;
+    final DBHelper dbHelper= new DBHelper(ManageUserDetailsActivity.this,"bms",null,1);
+    UserTableHelper userTableHelper = new UserTableHelper();
+    private ArrayList<User> userArrayList;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_manage_user_details);
+        InitView();
+        Intent intent = getIntent();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        uid = intent.getStringExtra("uid");
+        userArrayList = userTableHelper.UserDetails(dbHelper,uid);
+        username.setText(userArrayList.get(0).getUsername());
+        id.setText(userArrayList.get(0).getId());
+        if (userArrayList.get(0).getPasslock().isEmpty() || userArrayList.get(0).getPasslock().equals("请选择密保问题（非必选）")){
+            passlock.setText("未设置");
+            passkey.setText("未设置");
+        }else {
+            passlock.setText(userArrayList.get(0).getPasslock());
+            passkey.setText(userArrayList.get(0).getPasskey());
+        }
+        role.setText(userArrayList.get(0).getRole());
+    }
+
+    private void InitView(){
+        username = findViewById(R.id.userdetails_username);
+        id = findViewById(R.id.userdetails_id);
+        passlock = findViewById(R.id.userdetails_passlock);
+        passkey = findViewById(R.id.userdetails_passkey);
+        role = findViewById(R.id.userdetails_role);
+        uppass = findViewById(R.id.userdetails_btn_updatepassword);
+        uppass.setOnClickListener(this);
+        newpass_tips = findViewById(R.id.tv_newpass);
+        newrole_tips = findViewById(R.id.tv_newrole);
+        save = findViewById(R.id.userdetails_btn_save);
+        save.setOnClickListener(this);
+        delete = findViewById(R.id.userdetails_btn_delete);
+        delete.setOnClickListener(this);
+        uprole = findViewById(R.id.userdetails_btn_updaterole);
+        uprole.setOnClickListener(this);
+        back = findViewById(R.id.iv_back);
+        back.setOnClickListener(this);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.userdetails_btn_updatepassword:
+                UpdatePasswordDialog();
+                break;
+            case R.id.iv_back:
+                Intent intent = new Intent(ManageUserDetailsActivity.this,UserManageActivity.class);
+                startActivity(intent);
+                break;
+            case R.id.userdetails_btn_save:
+                final Intent back = new Intent(ManageUserDetailsActivity.this,UserManageActivity.class);
+                if (!newpass_tips.getText().equals("") || !newrole_tips.getText().toString().equals("")){
+                    final SqTipsDialog sqTipsDialog = new SqTipsDialog(this);
+                    sqTipsDialog.setTitle("提示");
+                    sqTipsDialog.setMsg("您正在试图更改该用户的信息，是否保存更改？")
+                            .setCancelable(false);
+                    sqTipsDialog.setOnCanlceListener(new View.OnClickListener() {
+                        @Override
+                        public void onClick(View v) {
+                            startActivity(back);
+                        }
+                    });
+                    sqTipsDialog.setOnSureListener(new View.OnClickListener() {
+                        @Override
+                        public void onClick(View v) {
+                            if (!newpass_tips.getText().toString().equals("")){
+                                String newpass = newpass_tips.getText().toString().replace("该用户的新密码将被重置为：","");
+                                userTableHelper.UpdatePassword(dbHelper,newpass,uid);
+                            }
+                            String newrole = newrole_tips.getText().toString();
+                            if (!newrole.equals("")){
+                                userTableHelper.UpdateRole(dbHelper,newrole_tips.getText().toString().replace("该用户的用户组将被重置为：",""),uid);
+                            }
+                            Toast.makeText(ManageUserDetailsActivity.this,"修改成功！",Toast.LENGTH_SHORT).show();
+                            startActivity(back);
+                        }
+                    });
+                    sqTipsDialog.show();
+                }else {
+                    startActivity(back);
+                }
+                break;
+            case R.id.userdetails_btn_delete:
+                final Intent back2 = new Intent(ManageUserDetailsActivity.this,UserManageActivity.class);
+                AlertDialog.Builder builder3 = new AlertDialog.Builder(ManageUserDetailsActivity.this);
+                builder3.setTitle("提示")
+                        .setMessage("确认删除该用户？此操作不可逆！")
+                        .setCancelable(false)
+                        .setNegativeButton("取消", new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                            }
+                        });
+                builder3.setPositiveButton("确定", new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        userTableHelper.DeleteUser(dbHelper,uid);
+                        Toast.makeText(ManageUserDetailsActivity.this,"删除成功！",Toast.LENGTH_SHORT).show();
+                        startActivity(back2);
+                    }
+                });
+                builder3.show();
+                break;
+            case R.id.userdetails_btn_updaterole:
+                UpdateRoleDialog();
+                break;
+        }
+    }
+
+    public void UpdatePasswordDialog() {
+        final CustomEditTextDialog customDialog = new CustomEditTextDialog(this);
+        final EditText editText = (EditText) customDialog.getEditText();//方法在CustomDialog中实现
+        customDialog.setCancelable(false);
+        customDialog.setOnSureListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                //判断是否填入字符串
+                if (editText.getText().toString().isEmpty()){//如果填入空字符串，则提示出不显示
+                    newpass_tips.setText(editText.getText().toString());
+                }else {
+                    newpass_tips.setText("该用户的新密码将被重置为：" + editText.getText().toString());
+                }
+                customDialog.dismiss();
+            }
+        });
+        customDialog.setOnCanlceListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                customDialog.dismiss();
+            }
+        });
+        customDialog.setTile("请输入新密码");
+        customDialog.show();
+    }
+    public void UpdateRoleDialog() {
+        final CustomSpinnerDialog customDialog = new CustomSpinnerDialog(this);
+        final Spinner spinner = (Spinner) customDialog.getSpinnerItem();//方法在CustomDialog中实现
+        String[] roleArray = {"USER","MANAGERS"};
+        ArrayAdapter<String> roleAdapter = new ArrayAdapter<String>(this,R.layout.support_simple_spinner_dropdown_item,roleArray);
+        roleAdapter.setDropDownViewResource(R.layout.support_simple_spinner_dropdown_item);
+        spinner.setAdapter(roleAdapter);
+        spinner.setSelection(0);
+        customDialog.setCancelable(false);
+        customDialog.setOnSureListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                if (!spinner.getSelectedItem().equals(userArrayList.get(0).getRole())){
+                    newrole_tips.setText("该用户的用户组将被重置为：" + spinner.getSelectedItem().toString());
+                }else {
+                    newrole_tips.setText("");
+                }
+                customDialog.dismiss();
+            }
+        });
+        customDialog.setOnCanlceListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                customDialog.dismiss();
+            }
+        });
+        customDialog.setTile("请选择用户组");
+        customDialog.show();
+    }
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();//注释掉这行,back键不退出activity
+        Intent intent = new Intent(ManageUserDetailsActivity.this,UserManageActivity.class);
+        startActivity(intent);
+    }
+}

bms/src/main/java/com/zhang/bms/ui/PersonalCenterActivity.java

@@ -0,0 +1,128 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.zhang.bms.R;
+import com.zhang.bms.model.SqTipsDialog;
+
+public class PersonalCenterActivity extends AppCompatActivity implements View.OnClickListener {
+    private LinearLayout favorite;
+    private LinearLayout book;
+    private LinearLayout borrow;
+    private RelativeLayout exit;
+    private RelativeLayout change;
+    private RelativeLayout manage;
+    private TextView nologin;
+    private TextView username;
+    private TextView role;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_personal_center);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+        //根据当前登录用户的用户组来决定”管理中心“按钮是否可见
+        SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+        SharedPreferences.Editor editor = sharedPreferences.edit();
+        if (sharedPreferences.getString("role","-1").equals("USER")){
+            manage.setVisibility(View.GONE);
+            nologin.setVisibility(View.GONE);
+            role.setText("普通用户");
+        }else if (sharedPreferences.getString("role","-1").equals("MANAGERS")){
+            nologin.setVisibility(View.GONE);
+            role.setText("管理员");
+        }
+        username.setText(sharedPreferences.getString("username","null"));
+        if (username.getText().equals("admin")){
+            change.setVisibility(View.GONE);
+            role.setText("超级管理员");
+        }
+    }
+
+    private void InitView(){
+        exit = findViewById(R.id.exit_account);
+        exit.setOnClickListener(this);
+        manage = findViewById(R.id.manage_index);
+        manage.setOnClickListener(this);
+        nologin = findViewById(R.id.tv_nologin);
+        username = findViewById(R.id.center_username);
+        role = findViewById(R.id.center_role);
+        change = findViewById(R.id.changepassword);
+        change.setOnClickListener(this);
+        book = findViewById(R.id.goto_book);
+        book.setOnClickListener(this);
+        favorite = findViewById(R.id.favorite);
+        favorite.setOnClickListener(this);
+        borrow = findViewById(R.id.borrow);
+        borrow.setOnClickListener(this);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.borrow:
+                Intent borrow = new Intent(this,ShowBorrowActivity.class);
+                startActivity(borrow);
+                break;
+            case R.id.favorite:
+                Intent favorite = new Intent(this,FavoriteActivity.class);
+                startActivity(favorite);
+                break;
+            case R.id.goto_book:
+                Intent goto_book = new Intent(PersonalCenterActivity.this,ShowBooksActivity.class);
+                startActivity(goto_book);
+                break;
+            case R.id.changepassword:
+                Intent intent4 = new Intent(PersonalCenterActivity.this,ChangePasswordActivity.class);
+                startActivity(intent4);
+                break;
+            case R.id.iv_back:
+                Intent intent3 = new Intent(PersonalCenterActivity.this,ShowBooksActivity.class);
+                startActivity(intent3);
+                break;
+            case R.id.manage_index:
+                Intent intent2 = new Intent(PersonalCenterActivity.this,ManageIndexActivity.class);
+                startActivity(intent2);
+                break;
+            case R.id.exit_account:
+                final SqTipsDialog sqTipsDialog = new SqTipsDialog(this);
+                sqTipsDialog.setTitle("提示");
+                sqTipsDialog.setMsg("确认退出登录")
+                        .setCancelable(true);
+                sqTipsDialog.setOnCanlceListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        sqTipsDialog.dismiss();
+                    }
+                });
+                sqTipsDialog.setOnSureListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+                        SharedPreferences.Editor editor = sharedPreferences.edit();
+                        editor.clear();
+                        editor.commit();
+                        Intent intent1 = new Intent(PersonalCenterActivity.this,LoginActivity.class);
+                        startActivity(intent1);
+                    }
+                });
+                sqTipsDialog.show();
+        }
+    }
+}

bms/src/main/java/com/zhang/bms/ui/RegisterActivity.java

@@ -0,0 +1,130 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.Spinner;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.control.UserTableHelper;
+import com.zhang.bms.model.SqTipsDialog;
+import com.zhang.bms.model.simpleArrayAdapter;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class RegisterActivity extends AppCompatActivity implements View.OnClickListener {
+    private Button register;
+    private EditText username;
+    private EditText password;
+    private EditText repassword;
+    private Spinner passlock;
+    private EditText passkey;
+    private TextView goto_login;
+    final DBHelper dbHelper = new DBHelper(RegisterActivity.this,"bms",null,1);
+    UserTableHelper userTableHelper = new UserTableHelper();
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_register);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+        List<String> data_list = new ArrayList<String>();
+        data_list.add("您目前的姓名是？");
+        data_list.add("您配偶的生日是？");
+        data_list.add("您的学号（或工号）是？");
+        data_list.add("您母亲的生日是？");
+        data_list.add("您高中班主任的名字是？");
+        data_list.add("您父亲的姓名是？");
+        data_list.add("您小学班主任的名字是？");
+        data_list.add("您父亲的生日是？");
+        data_list.add("您配偶的姓名是？");
+        data_list.add("您初中班主任的名字是？");
+        data_list.add("您最熟悉的童年好友名字是？");
+        data_list.add("您最熟悉的学校宿舍舍友名字是？");
+        data_list.add("对您影响最大的人名字是？");
+        data_list.add("请选择密保问题（非必选）");
+        simpleArrayAdapter<String> arrayAdapter = new simpleArrayAdapter<>(this,R.layout.support_simple_spinner_dropdown_item,data_list);
+        arrayAdapter.setDropDownViewResource(R.layout.support_simple_spinner_dropdown_item);
+        passlock.setAdapter(arrayAdapter);
+        passlock.setSelection(data_list.size()-1,true);
+    }
+
+    private void InitView(){
+        register = findViewById(R.id.regist_btn_register);
+        register.setOnClickListener(this);
+        username = findViewById(R.id.regist_username);
+        password = findViewById(R.id.regist_password);
+        repassword = findViewById(R.id.regist_repassword);
+        passkey = findViewById(R.id.regist_key);
+        goto_login = findViewById(R.id.register_goto_login);
+        goto_login.setOnClickListener(this);
+        passlock = findViewById(R.id.spinner_passlock);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.regist_btn_register:
+                final SqTipsDialog sqTipsDialog = new SqTipsDialog(this);
+                sqTipsDialog.setCancelable(true);
+                sqTipsDialog.setCancelbtnVisible(false);
+                sqTipsDialog.setSurebtnVisible(false);
+                sqTipsDialog.setTile("提示");
+                if (!username.getText().toString().isEmpty() && !password.getText().toString().isEmpty()
+                && !repassword.getText().toString().isEmpty()){
+                    String str_password = password.getText().toString();
+                    String str_repassword = repassword.getText().toString();
+                    if (username.getText().toString().length()>=2){
+                        if (str_password.equals(str_repassword)){
+                            String str_username = username.getText().toString();
+                            boolean usernamelock = userTableHelper.CheckUsername(dbHelper,str_username);
+                            if (usernamelock == true){
+                                String str_passlock = passlock.getSelectedItem().toString();
+                                String str_passkey = passkey.getText().toString();
+                                userTableHelper.Register(dbHelper,str_username,str_password,str_passlock,str_passkey,"USER","");
+                                Toast.makeText(RegisterActivity.this,"注册成功",Toast.LENGTH_SHORT).show();
+                                Intent intent = new Intent(RegisterActivity.this,LoginActivity.class);
+                                startActivity(intent);
+                            }else {
+                                sqTipsDialog.setMsg("用户名已存在！");
+                                sqTipsDialog.show();
+                            }
+                        }else {
+                            sqTipsDialog.setMsg("两次输入密码不一致");
+                            sqTipsDialog.show();
+                        }
+                    }else {
+                        sqTipsDialog.setMsg("用户名不得少于两个字符");
+                        sqTipsDialog.show();
+                    }
+                }else {
+                    sqTipsDialog.setMsg("信息填写不完整。");
+                    sqTipsDialog.show();
+                }
+                break;
+            case R.id.register_goto_login:
+                Intent intent = new Intent(RegisterActivity.this,LoginActivity.class);
+                startActivity(intent);
+        }
+    }
+    @Override
+    public void onBackPressed() {
+        //super.onBackPressed();//注释掉这行,back键不退出activity
+        Intent intent = new Intent(RegisterActivity.this,LoginActivity.class);
+        startActivity(intent);
+    }
+}

bms/src/main/java/com/zhang/bms/ui/ReturnSuccessActivity.java

@@ -0,0 +1,43 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.ImageView;
+
+import com.zhang.bms.R;
+
+public class ReturnSuccessActivity extends AppCompatActivity implements View.OnClickListener {
+    private ImageView back;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_return_success);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+    }
+    private void InitView(){
+        back = findViewById(R.id.iv_back);
+        back.setOnClickListener(this);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.iv_back:
+                Intent back = new Intent(this,BorrowManageActivity.class);
+                startActivity(back);
+                break;
+        }
+    }
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();//注释掉这行,back键不退出activity
+        Intent intent = new Intent(this,BorrowManageActivity.class);
+        startActivity(intent);
+    }
+}

bms/src/main/java/com/zhang/bms/ui/SearchResultActivity.java

@@ -0,0 +1,102 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.graphics.Color;
+import android.os.Build;
+import android.os.Bundle;
+import android.text.SpannableString;
+import android.text.SpannableStringBuilder;
+import android.text.Spanned;
+import android.text.style.ForegroundColorSpan;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.GridView;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.BookTableHelper;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.model.Book;
+import com.zhang.bms.model.BookGridAdapter;
+
+import java.util.ArrayList;
+
+public class SearchResultActivity extends AppCompatActivity implements View.OnClickListener {
+    private ArrayList<Book> bookArrayList;
+    private GridView gridView;
+    private String searcher;
+    private ImageView empty;
+    private TextView search_tips;
+    private ImageView back;
+    final DBHelper dbHelper= new DBHelper(this,"bms",null,1);
+    private BookTableHelper bookTableHelper = new BookTableHelper();
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_search_result);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+        Intent intent = getIntent();
+        searcher = intent.getStringExtra("searcher");
+        if (!searcher.equals("")){
+            InitBookGrid();
+        }else {
+            empty.setImageResource(R.drawable.ill_nonedata);
+            empty.setVisibility(View.VISIBLE);
+        }
+        SpannableString spannableString = new SpannableString(searcher);
+        spannableString.setSpan(new ForegroundColorSpan(Color.parseColor("#278b69")),0,spannableString.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+        search_tips.append(spannableString);
+    }
+    private void InitView(){
+        gridView = findViewById(R.id.book_gridview);
+        search_tips = findViewById(R.id.search_tips);
+        empty = findViewById(R.id.empty_image);
+        back = findViewById(R.id.iv_back);
+        back.setOnClickListener(this);
+    }
+    private void InitBookGrid(){
+        bookArrayList = bookTableHelper.SearchBook(dbHelper,searcher);
+        BookGridAdapter adapter = new BookGridAdapter(this,bookArrayList);
+        GridView book = findViewById(R.id.book_gridview);
+        book.setAdapter(adapter);
+        book.setOnItemClickListener(new BookOnClickListener());
+        if (bookArrayList.isEmpty()){
+            empty.setImageResource(R.drawable.ill_nonedata);
+            empty.setVisibility(View.VISIBLE);
+        }
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.iv_back:
+                Intent intent = new Intent(SearchResultActivity.this,ShowBooksActivity.class);
+                startActivity(intent);
+                break;
+        }
+    }
+    private class BookOnClickListener implements AdapterView.OnItemClickListener{
+
+        @Override
+        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+            String bid = bookArrayList.get(position).getId();
+            Intent intent = new Intent(SearchResultActivity.this,BookActivity.class);
+            intent.putExtra("bid",bid);
+            intent.putExtra("startActivityCode","search");
+            startActivity(intent);
+        }
+    }
+    @Override
+    public void onBackPressed() {
+        //注释掉这行,back键不退出activity
+        Intent intent = new Intent(SearchResultActivity.this,ShowBooksActivity.class);
+        startActivity(intent);
+    }
+}

bms/src/main/java/com/zhang/bms/ui/ShowBooksActivity.java

@@ -0,0 +1,90 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.GridView;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.Toast;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.BookTableHelper;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.model.Book;
+import com.zhang.bms.model.BookGridAdapter;
+
+import java.util.ArrayList;
+
+public class ShowBooksActivity extends AppCompatActivity implements View.OnClickListener {
+    private LinearLayout me;
+    private ArrayList<Book> bookArrayList;
+    private GridView gridView;
+    private EditText search_edit;
+    private Button search_btn;
+    final DBHelper dbHelper= new DBHelper(this,"bms",null,1);
+    private BookTableHelper bookTableHelper = new BookTableHelper();
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_show_books);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+        InitBookGrid();
+    }
+    private void InitView(){
+        gridView = findViewById(R.id.book_gridview);
+        search_edit = findViewById(R.id.search_edit);
+        search_btn = findViewById(R.id.search_btn);
+        search_btn.setOnClickListener(this);
+        me = findViewById(R.id.goto_me);
+        me.setOnClickListener(this);
+    }
+    private void InitBookGrid(){
+        bookArrayList = bookTableHelper.BookGrid(dbHelper);
+        BookGridAdapter adapter = new BookGridAdapter(this,bookArrayList);
+        GridView book = findViewById(R.id.book_gridview);
+        book.setAdapter(adapter);
+        book.setOnItemClickListener(new BookOnClickListener());
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.goto_me:
+                Intent goto_me = new Intent(ShowBooksActivity.this,PersonalCenterActivity.class);
+                startActivity(goto_me);
+                break;
+            case R.id.search_btn:
+                String searcher = search_edit.getText().toString();
+                Intent s = new Intent(ShowBooksActivity.this,SearchResultActivity.class);
+                s.putExtra("searcher",searcher);
+                startActivity(s);
+                break;
+        }
+    }
+    private class BookOnClickListener implements AdapterView.OnItemClickListener{
+
+        @Override
+        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+            String bid = bookArrayList.get(position).getId();
+            Intent intent = new Intent(ShowBooksActivity.this,BookActivity.class);
+            intent.putExtra("bid",bid);
+            intent.putExtra("startActivityCode","show");
+            startActivity(intent);
+        }
+    }
+    @Override
+    public void onBackPressed() {
+        //super.onBackPressed();//注释掉这行,back键不退出activity
+    }
+}

bms/src/main/java/com/zhang/bms/ui/ShowBorrowActivity.java

@@ -0,0 +1,69 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.GridView;
+import android.widget.ImageView;
+import android.widget.ListView;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.BorrowTableHelper;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.model.BookGridAdapter;
+import com.zhang.bms.model.Borrow;
+import com.zhang.bms.model.BorrowListAdapter;
+import com.zhang.bms.model.StringTrans;
+
+import java.util.ArrayList;
+
+public class ShowBorrowActivity extends AppCompatActivity implements View.OnClickListener {
+    private ImageView isnull;
+    private ImageView back;
+    private ListView listView;
+    final DBHelper dbHelper= new DBHelper(this,"bms",null,1);
+    private BorrowTableHelper borrowTableHelper = new BorrowTableHelper();
+    private String uid;
+    private ArrayList<Borrow> arrayList;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_show_borrow);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        SharedPreferences sharedPreferences = getSharedPreferences("account",MODE_PRIVATE);
+        uid = sharedPreferences.getString("uid","-1");
+        InitView();
+        InitList();
+    }
+    private void InitView(){
+        listView = findViewById(R.id.borrow_list);
+        back = findViewById(R.id.iv_back);
+        back.setOnClickListener(this);
+        isnull = findViewById(R.id.isnull);
+    }
+    private void InitList(){
+        arrayList = borrowTableHelper.ShowBorrow(dbHelper,uid);
+        if (!arrayList.isEmpty()){
+            isnull.setVisibility(View.INVISIBLE);
+        }
+        BorrowListAdapter adapter = new BorrowListAdapter(this,arrayList);
+        ListView book = findViewById(R.id.borrow_list);
+        book.setAdapter(adapter);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.iv_back:
+                Intent intent = new Intent(this,PersonalCenterActivity.class);
+                startActivity(intent);
+                break;
+        }
+    }
+}

bms/src/main/java/com/zhang/bms/ui/UserManageActivity.java

@@ -0,0 +1,94 @@
+package com.zhang.bms.ui;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.ListView;
+import android.widget.Toast;
+
+import com.zhang.bms.R;
+import com.zhang.bms.control.DBHelper;
+import com.zhang.bms.control.UserTableHelper;
+import com.zhang.bms.model.User;
+import com.zhang.bms.model.UserListAdapter;
+
+import java.util.ArrayList;
+
+public class UserManageActivity extends AppCompatActivity implements View.OnClickListener {
+    private LinearLayout back;
+    private LinearLayout bm;
+    private LinearLayout bom;
+    private ArrayList<User> userlist;
+    private ListView listView;
+    final DBHelper dbHelper= new DBHelper(UserManageActivity.this,"bms",null,1);
+    private UserTableHelper userTableHelper = new UserTableHelper();
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_user_manage);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            this.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        InitView();
+        InitUserList();
+    }
+
+    public void InitView(){
+        listView = findViewById(R.id.userlist_listview);
+        back = findViewById(R.id.back);
+        back.setOnClickListener(this);
+        bm = findViewById(R.id.goto_bm);
+        bm.setOnClickListener(this);
+        bom = findViewById(R.id.goto_bom);
+        bom.setOnClickListener(this);
+    }
+
+    private void InitUserList(){
+        userlist = userTableHelper.UserList(dbHelper);
+        UserListAdapter adapter = new UserListAdapter(this,userlist);
+        ListView user = findViewById(R.id.userlist_listview);
+        user.setAdapter(adapter);
+        user.setOnItemClickListener(new UserOnClickListener());
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.goto_bom:
+                Intent goto_bom = new Intent(this,BorrowManageActivity.class);
+                startActivity(goto_bom);
+                break;
+            case R.id.goto_bm:
+                Intent goto_bm = new Intent(this,BookManageActivity.class);
+                startActivity(goto_bm);
+            break;
+            case R.id.back:
+                Intent back = new Intent(this,PersonalCenterActivity.class);
+                startActivity(back);
+                break;
+        }
+    }
+
+    private class UserOnClickListener implements AdapterView.OnItemClickListener {
+        @Override
+        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+            String uid = userlist.get(position).getId();
+            Intent intent = new Intent(UserManageActivity.this,ManageUserDetailsActivity.class);
+            intent.putExtra("uid",uid);
+            startActivity(intent);
+        }
+    }
+    @Override
+    public void onBackPressed() {
+        //super.onBackPressed();//注释掉这行,back键不退出activity
+        Intent intent = new Intent(UserManageActivity.this,ManageIndexActivity.class);
+        startActivity(intent);
+    }
+}

bms/src/main/java/com/zhang/bms/ui/ui.plantuml

@@ -0,0 +1,536 @@
+@startuml
+
+title __UI's Class Diagram__\n
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.AddBookActivity {
+          - ISBN : EditText
+          - add : Button
+          - author : EditText
+          - back : ImageView
+          - bookname : EditText
+          - category : Spinner
+          - inventory : EditText
+          - page : EditText
+          - press : EditText
+          - publicationtime : EditText
+          - synopsis : EditText
+          + onBackPressed()
+          + onClick()
+          # onCreate()
+          - InitView()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.BookActivity {
+          - author : TextView
+          - back : ImageView
+          - bid : String
+          - bookArrayList : ArrayList<Book>
+          - bookname : TextView
+          - borrow : Button
+          - borrownull : Button
+          - category : TextView
+          - collect : Button
+          - collected : Button
+          - collections : String
+          - inventory : TextView
+          - page : TextView
+          - press : TextView
+          - publicationtime : TextView
+          - synopsis : TextView
+          - uid : String
+          + onBackPressed()
+          + onClick()
+          # onCreate()
+          - Back()
+          - InitView()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.BookManageActivity {
+          - add : ImageView
+          - back : LinearLayout
+          - bom : LinearLayout
+          - booklist : ArrayList<Book>
+          - listView : ListView
+          - um : LinearLayout
+          + InitView()
+          + onBackPressed()
+          + onClick()
+          # onCreate()
+          - InitBookList()
+      }
+    }
+  }
+  
+
+
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.BorrowManageActivity {
+          - arrayList : ArrayList<Borrow>
+          - back : LinearLayout
+          - bm : LinearLayout
+          - list : ListView
+          - um : LinearLayout
+          + onBackPressed()
+          + onClick()
+          # onCreate()
+          - InitList()
+          - InitView()
+      }
+    }
+  }
+  
+
+
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.BorrowSuccessActivity {
+          - bid : String
+          - code : String
+          + onBackPressed()
+          + onClick()
+          # onCreate()
+          - InitView()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.ChangePasswordActivity {
+          - back : ImageView
+          - commit : Button
+          - forget : TextView
+          - new_pass : EditText
+          - new_pass2 : EditText
+          - original_pass : EditText
+          + onBackPressed()
+          + onClick()
+          # onCreate()
+          - InitView()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.Change_synopsisActivity {
+          - back : ImageView
+          - save : TextView
+          - synopsis : EditText
+          + onClick()
+          # onCreate()
+          - InitView()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.FavoriteActivity {
+          - back : ImageView
+          - bookArrayList : ArrayList<Book>
+          - collections : String
+          - isnull : ImageView
+          - list : GridView
+          - uid : String
+          + onBackPressed()
+          + onClick()
+          # onCreate()
+          - InitList()
+          - InitView()
+      }
+    }
+  }
+  
+
+
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.ForgetPassActivity {
+          - back : ImageView
+          - commit : Button
+          - newpass : EditText
+          - passkey : EditText
+          - passlock : TextView
+          - renewpass : EditText
+          - update_username : String
+          + onClick()
+          # onCreate()
+          - InitView()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.InputUsernameActivity {
+          - back : ImageView
+          - commit : Button
+          - username : EditText
+          + onBackPressed()
+          + onClick()
+          # onCreate()
+          - InitView()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.LoginActivity {
+          - forget : TextView
+          - goto_regist : TextView
+          - login : Button
+          - password : EditText
+          - save : CheckBox
+          - userArrayList : ArrayList<User>
+          - username : EditText
+          + onClick()
+          # onCreate()
+          - InitAccount()
+          - InitView()
+          - SaveUP()
+          - SaveUP()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.ManageBookDetailsActivity {
+          - ISBN : EditText
+          - author : EditText
+          - back : ImageView
+          - bookArrayList : ArrayList<Book>
+          - bookname : EditText
+          - category : EditText
+          - change_synopsis : RelativeLayout
+          - delete : Button
+          - get_bid : String
+          - inventory : EditText
+          - o_ISBN : String
+          - o_author : String
+          - o_bookname : String
+          - o_category : String
+          - o_inventory : String
+          - o_page : String
+          - o_press : String
+          - o_publicationtime : String
+          - o_synopsis : String
+          - page : EditText
+          - press : EditText
+          - publicationtime : EditText
+          - save : Button
+          - synopsis : TextView
+          + onBackPressed()
+          + onClick()
+          # onActivityResult()
+          # onCreate()
+          - InitView()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.ManageIndexActivity {
+          - add_default : Button
+          - back : LinearLayout
+          - bm : LinearLayout
+          - bom : LinearLayout
+          - iv_back : ImageView
+          - um : LinearLayout
+          + InitView()
+          + onBackPressed()
+          + onClick()
+          # onCreate()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.ManageUserDetailsActivity {
+          - back : ImageView
+          - delete : Button
+          - id : TextView
+          - newpass_tips : TextView
+          - newrole_tips : TextView
+          - passkey : TextView
+          - passlock : TextView
+          - role : TextView
+          - save : Button
+          - uid : String
+          - uppass : Button
+          - uprole : RelativeLayout
+          - userArrayList : ArrayList<User>
+          - username : TextView
+          + UpdatePasswordDialog()
+          + UpdateRoleDialog()
+          + onBackPressed()
+          + onClick()
+          # onCreate()
+          - InitView()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.PersonalCenterActivity {
+          - book : LinearLayout
+          - borrow : LinearLayout
+          - change : RelativeLayout
+          - exit : RelativeLayout
+          - favorite : LinearLayout
+          - manage : RelativeLayout
+          - nologin : TextView
+          - role : TextView
+          - username : TextView
+          + onClick()
+          # onCreate()
+          - InitView()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.RegisterActivity {
+          - goto_login : TextView
+          - passkey : EditText
+          - passlock : Spinner
+          - password : EditText
+          - register : Button
+          - repassword : EditText
+          - username : EditText
+          + onBackPressed()
+          + onClick()
+          # onCreate()
+          - InitView()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.ReturnSuccessActivity {
+          - back : ImageView
+          + onBackPressed()
+          + onClick()
+          # onCreate()
+          - InitView()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.SearchResultActivity {
+          - back : ImageView
+          - bookArrayList : ArrayList<Book>
+          - empty : ImageView
+          - gridView : GridView
+          - search_tips : TextView
+          - searcher : String
+          + onBackPressed()
+          + onClick()
+          # onCreate()
+          - InitBookGrid()
+          - InitView()
+      }
+    }
+  }
+  
+
+
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.ShowBooksActivity {
+          - bookArrayList : ArrayList<Book>
+          - gridView : GridView
+          - me : LinearLayout
+          - search_btn : Button
+          - search_edit : EditText
+          + onBackPressed()
+          + onClick()
+          # onCreate()
+          - InitBookGrid()
+          - InitView()
+      }
+    }
+  }
+  
+
+
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.ShowBorrowActivity {
+          - arrayList : ArrayList<Borrow>
+          - back : ImageView
+          - isnull : ImageView
+          - listView : ListView
+          - uid : String
+          + onClick()
+          # onCreate()
+          - InitList()
+          - InitView()
+      }
+    }
+  }
+  
+
+  namespace com.zhang.bms {
+    namespace ui {
+      class com.zhang.bms.ui.UserManageActivity {
+          - back : LinearLayout
+          - bm : LinearLayout
+          - bom : LinearLayout
+          - listView : ListView
+          - userlist : ArrayList<User>
+          + InitView()
+          + onBackPressed()
+          + onClick()
+          # onCreate()
+          - InitUserList()
+      }
+    }
+  }
+  
+
+
+  
+
+  com.zhang.bms.ui.AddBookActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.AddBookActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.AddBookActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.BookActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.BookActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.BookActivity o-- com.zhang.bms.control.BookTableHelper : bookTableHelper
+  com.zhang.bms.ui.BookActivity o-- com.zhang.bms.control.BorrowTableHelper : borrowTableHelper
+  com.zhang.bms.ui.BookActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.BookActivity o-- com.zhang.bms.control.UserTableHelper : userTableHelper
+  com.zhang.bms.ui.BookManageActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.BookManageActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.BookManageActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.BookManageActivity o-- com.zhang.bms.control.BookTableHelper : bookTableHelper
+  com.zhang.bms.ui.BookManageActivity +-down- com.zhang.bms.ui.BookManageActivity.BookOnClickListener
+  com.zhang.bms.ui.BookManageActivity.BookOnClickListener .up.|> android.widget.AdapterView.OnItemClickListener
+  com.zhang.bms.ui.BorrowManageActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.BorrowManageActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.BorrowManageActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.BorrowManageActivity o-- com.zhang.bms.control.BookTableHelper : bookTableHelper
+  com.zhang.bms.ui.BorrowManageActivity o-- com.zhang.bms.control.BorrowTableHelper : borrowTableHelper
+  com.zhang.bms.ui.BorrowManageActivity +-down- com.zhang.bms.ui.BorrowManageActivity.BackBook
+  com.zhang.bms.ui.BorrowManageActivity.BackBook .up.|> android.widget.AdapterView.OnItemClickListener
+  com.zhang.bms.ui.BorrowSuccessActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.BorrowSuccessActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.ChangePasswordActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.ChangePasswordActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.ChangePasswordActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.ChangePasswordActivity o-- com.zhang.bms.control.UserTableHelper : userTableHelper
+  com.zhang.bms.ui.Change_synopsisActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.Change_synopsisActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.FavoriteActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.FavoriteActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.FavoriteActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.FavoriteActivity o-- com.zhang.bms.control.UserTableHelper : userTableHelper
+  com.zhang.bms.ui.FavoriteActivity o-- com.zhang.bms.control.BookTableHelper : bookTableHelper
+  com.zhang.bms.ui.FavoriteActivity +-down- com.zhang.bms.ui.FavoriteActivity.BookOnClickListener
+  com.zhang.bms.ui.FavoriteActivity.BookOnClickListener .up.|> android.widget.AdapterView.OnItemClickListener
+  com.zhang.bms.ui.ForgetPassActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.ForgetPassActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.ForgetPassActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.ForgetPassActivity o-- com.zhang.bms.control.UserTableHelper : userTableHelper
+  com.zhang.bms.ui.InputUsernameActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.InputUsernameActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.LoginActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.LoginActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.LoginActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.LoginActivity o-- com.zhang.bms.control.UserTableHelper : userTableHelper
+  com.zhang.bms.ui.ManageBookDetailsActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.ManageBookDetailsActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.ManageBookDetailsActivity o-- com.zhang.bms.control.BookTableHelper : bookTableHelper
+  com.zhang.bms.ui.ManageBookDetailsActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.ManageIndexActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.ManageIndexActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.ManageIndexActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.ManageUserDetailsActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.ManageUserDetailsActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.ManageUserDetailsActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.ManageUserDetailsActivity o-- com.zhang.bms.control.UserTableHelper : userTableHelper
+  com.zhang.bms.ui.PersonalCenterActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.PersonalCenterActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.RegisterActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.RegisterActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.RegisterActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.RegisterActivity o-- com.zhang.bms.control.UserTableHelper : userTableHelper
+  com.zhang.bms.ui.ReturnSuccessActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.ReturnSuccessActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.SearchResultActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.SearchResultActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.SearchResultActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.SearchResultActivity o-- com.zhang.bms.control.BookTableHelper : bookTableHelper
+  com.zhang.bms.ui.SearchResultActivity +-down- com.zhang.bms.ui.SearchResultActivity.BookOnClickListener
+  com.zhang.bms.ui.SearchResultActivity.BookOnClickListener .up.|> android.widget.AdapterView.OnItemClickListener
+  com.zhang.bms.ui.ShowBooksActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.ShowBooksActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.ShowBooksActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.ShowBooksActivity o-- com.zhang.bms.control.BookTableHelper : bookTableHelper
+  com.zhang.bms.ui.ShowBooksActivity +-down- com.zhang.bms.ui.ShowBooksActivity.BookOnClickListener
+  com.zhang.bms.ui.ShowBooksActivity.BookOnClickListener .up.|> android.widget.AdapterView.OnItemClickListener
+  com.zhang.bms.ui.ShowBorrowActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.ShowBorrowActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.ShowBorrowActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.ShowBorrowActivity o-- com.zhang.bms.control.BorrowTableHelper : borrowTableHelper
+  com.zhang.bms.ui.UserManageActivity .up.|> android.view.View.OnClickListener
+  com.zhang.bms.ui.UserManageActivity -up-|> androidx.appcompat.app.AppCompatActivity
+  com.zhang.bms.ui.UserManageActivity o-- com.zhang.bms.control.DBHelper : dbHelper
+  com.zhang.bms.ui.UserManageActivity o-- com.zhang.bms.control.UserTableHelper : userTableHelper
+  com.zhang.bms.ui.UserManageActivity +-down- com.zhang.bms.ui.UserManageActivity.UserOnClickListener
+  com.zhang.bms.ui.UserManageActivity.UserOnClickListener .up.|> android.widget.AdapterView.OnItemClickListener
+
+
+right footer
+
+
+PlantUML diagram generated by SketchIt! (https://bitbucket.org/pmesmeur/sketch.it)
+For more information about this tool, please contact philippe.mesmeur@gmail.com
+endfooter
+
+@enduml

bms/src/main/res/drawable-v24/bg_card1.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/colorwhite" /> <!-- 填充的颜色：这里设置背景透明 -->
+    <corners android:radius="8dp"/><!-- android:radius 弧形的半径 -->
+</shape>

bms/src/main/res/drawable-v24/bg_card2.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/colorwhite" /> <!-- 填充的颜色：这里设置背景透明 -->
+    <corners android:radius="20dp"/><!-- android:radius 弧形的半径 -->
+</shape>

bms/src/main/res/drawable-v24/btn_collected_sq.xml

@@ -0,0 +1,6 @@
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item android:drawable="@drawable/btn_sq_dialog_cancel_press" android:state_pressed="false"/>
+    <item android:drawable="@drawable/btn_sq_dialog_cancel_normal" android:state_pressed="true"/>
+
+</selector>

bms/src/main/res/drawable-v24/btn_dialog_cancel_sq.xml

@@ -0,0 +1,6 @@
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item android:drawable="@drawable/btn_sq_dialog_cancel_normal" android:state_pressed="false"/>
+    <item android:drawable="@drawable/btn_sq_dialog_cancel_press" android:state_pressed="true"/>
+
+</selector>

bms/src/main/res/drawable-v24/btn_sq_dialog_cancel_normal.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/colorwhite" /> <!-- 填充的颜色：这里设置背景透明 -->
+    <corners android:radius="10dp" /><!-- android:radius 弧形的半径 -->
+    <stroke
+        android:width="1dp"
+        android:color="@color/color_sq_dialog_xian"/>
+</shape>

bms/src/main/res/drawable-v24/btn_sq_dialog_cancel_press.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/color_sq_dialog_cancel_btn_press" /> <!-- 填充的颜色：这里设置背景透明 -->
+    <corners android:radius="10dp" /><!-- android:radius 弧形的半径 -->
+    <stroke
+        android:width="1dp"
+        android:color="@color/color_sq_dialog_xian"/>
+</shape>