v1

src/notes-master/.gitignore

@@ -0,0 +1,15 @@
+*.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
+local.properties

src/notes-master/.idea/.gitignore

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

src/notes-master/.idea/.name

@@ -0,0 +1 @@
+notes

src/notes-master/.idea/AndroidProjectSystem.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AndroidProjectSystem">
+    <option name="providerId" value="com.android.tools.idea.GradleProjectSystem" />
+  </component>
+</project>

src/notes-master/.idea/compiler.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="21" />
+  </component>
+</project>

src/notes-master/.idea/deploymentTargetSelector.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="deploymentTargetSelector">
+    <selectionStates>
+      <SelectionState runConfigName="app">
+        <option name="selectionMode" value="DROPDOWN" />
+      </SelectionState>
+    </selectionStates>
+  </component>
+</project>

src/notes-master/.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="CHOOSE_PER_TEST" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleJvm" value="#GRADLE_LOCAL_JAVA_HOME" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

src/notes-master/.idea/migrations.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectMigrations">
+    <option name="MigrateToGradleLocalJavaHome">
+      <set>
+        <option value="$PROJECT_DIR$" />
+      </set>
+    </option>
+  </component>
+</project>

src/notes-master/.idea/misc.xml

@@ -0,0 +1,9 @@
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="jbr-21" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>

src/notes-master/.idea/runConfigurations.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RunConfigurationProducerService">
+    <option name="ignoredProducers">
+      <set>
+        <option value="com.intellij.execution.junit.AbstractAllInDirectoryConfigurationProducer" />
+        <option value="com.intellij.execution.junit.AllInPackageConfigurationProducer" />
+        <option value="com.intellij.execution.junit.PatternConfigurationProducer" />
+        <option value="com.intellij.execution.junit.TestInClassConfigurationProducer" />
+        <option value="com.intellij.execution.junit.UniqueIdConfigurationProducer" />
+        <option value="com.intellij.execution.junit.testDiscovery.JUnitTestDiscoveryConfigurationProducer" />
+        <option value="org.jetbrains.kotlin.idea.junit.KotlinJUnitRunConfigurationProducer" />
+        <option value="org.jetbrains.kotlin.idea.junit.KotlinPatternConfigurationProducer" />
+      </set>
+    </option>
+  </component>
+</project>

src/notes-master/LICENSE.txt

@@ -0,0 +1,674 @@
+     GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
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+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
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+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

src/notes-master/README.md

@@ -0,0 +1,43 @@
+# Notes App
+
+This is a simple Android note-taking app created with Java, XML, and SQLite.
+
+## Features
+
+- View a list of all notes.
+- Create a new note with a heading and details.
+- Edit existing notes.
+- Delete notes.
+- Save and retrieve notes from SQLite database.
+
+## Getting Started
+
+### Prerequisites
+
+- Android Studio
+- Android device or emulator
+
+### Installation
+
+1. Clone the repository
+
+```bash
+git clone https://github.com/your-username/notes-app.git
+```
+2. **Open the project in Android Studio**
+3. **Run the app on an Android device or emulator**
+
+## Usage
+
+- Open the app to view the list of notes
+- Click on "New Note" to create a new note
+- Click on a note heading to edit the note
+- Long press on a note to delete it
+
+## Contributing
+
+Contributions are welcome! If you find any issues or have suggestions, please open an issue or create a pull request.
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.

src/notes-master/app/.gitignore

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

src/notes-master/app/build.gradle.kts

@@ -0,0 +1,42 @@
+plugins {
+    id("com.android.application")
+}
+
+android {
+    namespace = "com.example.notes"
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = "com.example.notes"
+        minSdk = 28
+        targetSdk = 34
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+
+    implementation("androidx.appcompat:appcompat:1.6.1")
+    implementation("com.google.android.material:material:1.11.0")
+    implementation("androidx.constraintlayout:constraintlayout:2.1.4")
+    testImplementation("junit:junit:4.13.2")
+    androidTestImplementation("androidx.test.ext:junit:1.1.5")
+    androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
+}

src/notes-master/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

src/notes-master/app/src/androidTest/java/com/example/notes/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.example.notes;
+
+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.example.notes", appContext.getPackageName());
+    }
+}

src/notes-master/app/src/main/AndroidManifest.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.notes">
+
+    <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">
+
+        <!-- 登录活动 - 作为启动活动，需要被系统启动器调用 -->
+        <activity
+            android:name=".LoginActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <!-- 主活动 - 通常由登录活动启动，不需要被外部应用直接启动 -->
+        <activity
+            android:name=".MainActivity"
+            android:exported="false"/>
+
+        <!-- 笔记详情活动 - 通常由主活动启动，不需要被外部应用直接启动 -->
+        <activity
+            android:name=".NoteDetailActivity"
+            android:exported="false"/>
+    </application>
+
+</manifest>

src/notes-master/app/src/main/java/com/example/notes/DatabaseHelper.java

@@ -0,0 +1,182 @@
+package com.example.notes;
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import java.util.ArrayList;
+import java.util.List;
+
+public class DatabaseHelper extends SQLiteOpenHelper {
+
+    private static final String DATABASE_NAME = "notes.db";
+    private static final int DATABASE_VERSION = 3; // 升级数据库版本
+
+    public static final String TABLE_NOTES = "notes";
+    public static final String COLUMN_ID = "_id";
+    public static final String COLUMN_HEADING = "heading";
+    public static final String COLUMN_DETAILS = "details";
+    public static final String COLUMN_PINNED = "pinned";
+    public static final String COLUMN_COLOR = "color"; // 新增颜色字段
+
+    private static final String TABLE_CREATE =
+            "CREATE TABLE " + TABLE_NOTES + " (" +
+                    COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " +
+                    COLUMN_HEADING + " TEXT, " +
+                    COLUMN_DETAILS + " TEXT, " +
+                    COLUMN_PINNED + " INTEGER DEFAULT 0, " +
+                    COLUMN_COLOR + " TEXT DEFAULT '#FFFFFF');"; // 默认白色
+
+    public DatabaseHelper(Context context) {
+        super(context, DATABASE_NAME, null, DATABASE_VERSION);
+    }
+
+    @Override
+    public void onCreate(SQLiteDatabase db) {
+        db.execSQL(TABLE_CREATE);
+    }
+
+    @Override
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+        if (oldVersion < 3) {
+            // 升级数据库时添加color列
+            db.execSQL("ALTER TABLE " + TABLE_NOTES + " ADD COLUMN " + COLUMN_COLOR + " TEXT DEFAULT '#FFFFFF'");
+        }
+    }
+
+    public int deleteNoteById(long noteId) {
+        SQLiteDatabase db = this.getWritableDatabase();
+        try {
+            return db.delete(TABLE_NOTES, COLUMN_ID + " = ?",
+                    new String[]{String.valueOf(noteId)});
+        } finally {
+            db.close();
+        }
+    }
+
+    public long insertNote(String heading, String details, String color) {
+        SQLiteDatabase db = this.getWritableDatabase();
+        ContentValues values = new ContentValues();
+        values.put(COLUMN_HEADING, heading);
+        values.put(COLUMN_DETAILS, details);
+        values.put(COLUMN_PINNED, 0);
+        values.put(COLUMN_COLOR, color);
+
+        try {
+            return db.insert(TABLE_NOTES, null, values);
+        } finally {
+            db.close();
+        }
+    }
+
+    public boolean updateNote(long noteId, String heading, String details, String color) {
+        SQLiteDatabase db = this.getWritableDatabase();
+        ContentValues values = new ContentValues();
+        values.put(COLUMN_HEADING, heading);
+        values.put(COLUMN_DETAILS, details);
+        values.put(COLUMN_COLOR, color);
+
+        try {
+            int rowsAffected = db.update(TABLE_NOTES, values, COLUMN_ID + " = ?",
+                    new String[]{String.valueOf(noteId)});
+            return rowsAffected > 0;
+        } finally {
+            db.close();
+        }
+    }
+
+    public boolean updateNotePinStatus(long noteId, boolean isPinned) {
+        SQLiteDatabase db = this.getWritableDatabase();
+        ContentValues values = new ContentValues();
+        values.put(COLUMN_PINNED, isPinned ? 1 : 0);
+
+        try {
+            int rowsAffected = db.update(TABLE_NOTES, values, COLUMN_ID + " = ?",
+                    new String[]{String.valueOf(noteId)});
+            return rowsAffected > 0;
+        } finally {
+            db.close();
+        }
+    }
+
+    public List<Note> getAllNotes() {
+        List<Note> notes = new ArrayList<>();
+        SQLiteDatabase db = this.getReadableDatabase();
+
+        try {
+            Cursor cursor = db.query(
+                    TABLE_NOTES,
+                    new String[]{COLUMN_ID, COLUMN_HEADING, COLUMN_DETAILS, COLUMN_PINNED, COLUMN_COLOR},
+                    null,
+                    null,
+                    null,
+                    null,
+                    COLUMN_PINNED + " DESC, " + COLUMN_ID + " DESC"
+            );
+
+            if (cursor != null && cursor.moveToFirst()) {
+                do {
+                    long id = cursor.getLong(cursor.getColumnIndex(COLUMN_ID));
+                    String heading = cursor.getString(cursor.getColumnIndex(COLUMN_HEADING));
+                    String details = cursor.getString(cursor.getColumnIndex(COLUMN_DETAILS));
+                    boolean isPinned = cursor.getInt(cursor.getColumnIndex(COLUMN_PINNED)) == 1;
+                    String color = cursor.getString(cursor.getColumnIndex(COLUMN_COLOR));
+
+                    Note note = new Note();
+                    note.setId(id);
+                    note.setHeading(heading);
+                    note.setDetails(details);
+                    note.setPinned(isPinned);
+                    note.setColor(color);
+
+                    notes.add(note);
+                } while (cursor.moveToNext());
+
+                cursor.close();
+            }
+        } finally {
+            db.close();
+        }
+
+        return notes;
+    }
+
+    public Note getNoteById(long noteId) {
+        SQLiteDatabase db = this.getReadableDatabase();
+        Note note = null;
+
+        try {
+            Cursor cursor = db.query(
+                    TABLE_NOTES,
+                    new String[]{COLUMN_ID, COLUMN_HEADING, COLUMN_DETAILS, COLUMN_PINNED, COLUMN_COLOR},
+                    COLUMN_ID + " = ?",
+                    new String[]{String.valueOf(noteId)},
+                    null,
+                    null,
+                    null
+            );
+
+            if (cursor != null && cursor.moveToFirst()) {
+                long id = cursor.getLong(cursor.getColumnIndex(COLUMN_ID));
+                String heading = cursor.getString(cursor.getColumnIndex(COLUMN_HEADING));
+                String details = cursor.getString(cursor.getColumnIndex(COLUMN_DETAILS));
+                boolean isPinned = cursor.getInt(cursor.getColumnIndex(COLUMN_PINNED)) == 1;
+                String color = cursor.getString(cursor.getColumnIndex(COLUMN_COLOR));
+
+                note = new Note();
+                note.setId(id);
+                note.setHeading(heading);
+                note.setDetails(details);
+                note.setPinned(isPinned);
+                note.setColor(color);
+
+                cursor.close();
+            }
+        } finally {
+            db.close();
+        }
+
+        return note;
+    }
+}

src/notes-master/app/src/main/java/com/example/notes/LoginActivity.java

@@ -0,0 +1,48 @@
+package com.example.notes;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.Toast;
+import androidx.appcompat.app.AppCompatActivity;
+
+public class LoginActivity extends AppCompatActivity {
+
+    private EditText usernameEditText;
+    private EditText passwordEditText;
+    private Button loginButton;
+
+    private static final String CORRECT_USERNAME = "admin";
+    private static final String CORRECT_PASSWORD = "123456";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_login);
+
+        usernameEditText = findViewById(R.id.usernameEditText);
+        passwordEditText = findViewById(R.id.passwordEditText);
+        loginButton = findViewById(R.id.loginButton);
+
+        loginButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                String username = usernameEditText.getText().toString();
+                String password = passwordEditText.getText().toString();
+
+                if (TextUtils.isEmpty(username) || TextUtils.isEmpty(password)) {
+                    Toast.makeText(LoginActivity.this, "请输入用户名和密码", Toast.LENGTH_SHORT).show();
+                } else if (username.equals(CORRECT_USERNAME) && password.equals(CORRECT_PASSWORD)) {
+                    Intent intent = new Intent(LoginActivity.this, MainActivity.class);
+                    startActivity(intent);
+                    finish();
+                } else {
+                    Toast.makeText(LoginActivity.this, "用户名或密码无效", Toast.LENGTH_SHORT).show();
+                }
+            }
+        });
+    }
+}

src/notes-master/app/src/main/java/com/example/notes/MainActivity.java

@@ -0,0 +1,136 @@
+package com.example.notes;
+
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.Button;
+import android.widget.ListView;
+import android.widget.SearchView;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+import java.util.ArrayList;
+import java.util.List;
+
+public class MainActivity extends AppCompatActivity implements NoteAdapter.OnNoteClickListener {
+
+    private ListView noteListView;
+    private Button newNoteButton;
+    private SearchView searchView;
+    private NoteAdapter adapter;
+    private List<Note> allNotes; // 用于存储所有笔记
+    private List<Note> displayedNotes; // 用于存储当前显示的笔记
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        noteListView = findViewById(R.id.noteListView);
+        newNoteButton = findViewById(R.id.newNoteButton);
+        searchView = findViewById(R.id.searchView);
+
+        // 初始化DatabaseHelper并从SQLite数据库中获取笔记
+        final DatabaseHelper databaseHelper = new DatabaseHelper(this);
+        allNotes = fetchNotesFromDatabase(databaseHelper);
+        displayedNotes = new ArrayList<>(allNotes); // 初始显示所有笔记
+
+        // 为ListView设置NoteAdapter，并将this作为OnNoteClickListener
+        adapter = new NoteAdapter(this, displayedNotes, this);
+        noteListView.setAdapter(adapter);
+
+        // 设置创建新笔记的点击监听器
+        newNoteButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Intent intent = new Intent(MainActivity.this, NoteDetailActivity.class);
+                startActivity(intent);
+            }
+        });
+
+        // 设置删除笔记的长按监听器
+        noteListView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
+            @Override
+            public boolean onItemLongClick(AdapterView<?> adapterView, View view, int position, long id) {
+                showDeleteDialog(adapter, position);
+                return true;
+            }
+        });
+
+        // 设置搜索功能
+        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
+            @Override
+            public boolean onQueryTextSubmit(String query) {
+                return false;
+            }
+
+            @Override
+            public boolean onQueryTextChange(String newText) {
+                filterNotes(newText);
+                return true;
+            }
+        });
+    }
+
+    private List<Note> fetchNotesFromDatabase(DatabaseHelper databaseHelper) {
+        return databaseHelper.getAllNotes();
+    }
+
+    private void showDeleteDialog(final NoteAdapter adapter, final int position) {
+        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        builder.setMessage("你确定要删除这条笔记吗？")
+                .setPositiveButton("删除", new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialogInterface, int i) {
+                        Note noteToDelete = adapter.getItem(position);
+                        deleteNoteFromDatabase(noteToDelete.getId());
+                        allNotes.remove(noteToDelete); // 从原始列表中移除
+                        displayedNotes.remove(noteToDelete); // 从显示列表中移除
+                        adapter.notifyDataSetChanged();
+                        // 通知用户笔记已删除
+                        showToast("笔记已删除");
+                    }
+                })
+                .setNegativeButton("取消", new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialogInterface, int i) {
+                        // 用户取消操作
+                    }
+                })
+                .show();
+    }
+
+    private void deleteNoteFromDatabase(long noteId) {
+        DatabaseHelper databaseHelper = new DatabaseHelper(this);
+        databaseHelper.deleteNoteById(noteId);
+    }
+
+    private void showToast(String message) {
+        // 显示Toast消息（根据你的偏好实现此方法）
+    }
+
+    @Override
+    public void onNoteClick(Note note) {
+        // 处理笔记点击事件（打开NoteDetailActivity进行编辑）
+        Intent intent = new Intent(MainActivity.this, NoteDetailActivity.class);
+        intent.putExtra("noteId", note.getId());
+        startActivity(intent);
+    }
+
+    private void filterNotes(String query) {
+        displayedNotes.clear();
+        if (query.isEmpty()) {
+            displayedNotes.addAll(allNotes); // 搜索框为空时显示所有笔记
+        } else {
+            for (Note note : allNotes) {
+                if (note.getHeading().toLowerCase().contains(query.toLowerCase()) ||
+                        note.getDetails().toLowerCase().contains(query.toLowerCase())) {
+                    displayedNotes.add(note);
+                }
+            }
+        }
+        adapter.notifyDataSetChanged();
+    }
+}

src/notes-master/app/src/main/java/com/example/notes/Note.java

@@ -0,0 +1,50 @@
+package com.example.notes;
+
+public class Note {
+    private long id;
+    private String heading;
+    private String details;
+    private boolean isPinned;
+    private String color; // 新增：笔记颜色
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    public String getHeading() {
+        return heading;
+    }
+
+    public void setHeading(String heading) {
+        this.heading = heading;
+    }
+
+    public String getDetails() {
+        return details;
+    }
+
+    public void setDetails(String details) {
+        this.details = details;
+    }
+
+    public boolean isPinned() {
+        return isPinned;
+    }
+
+    public void setPinned(boolean pinned) {
+        isPinned = pinned;
+    }
+
+    // 新增：颜色相关方法
+    public String getColor() {
+        return color;
+    }
+
+    public void setColor(String color) {
+        this.color = color;
+    }
+}

src/notes-master/app/src/main/java/com/example/notes/NoteAdapter.java

@@ -0,0 +1,230 @@
+package com.example.notes;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.graphics.Color;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ImageView;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import java.util.List;
+
+public class NoteAdapter extends ArrayAdapter<Note> {
+
+    private Context context;
+    private List<Note> notes;
+    private OnNoteClickListener onNoteClickListener;
+    private String[] colorOptions;
+    private String[] colorValues;
+
+    public NoteAdapter(Context context, List<Note> notes, OnNoteClickListener onNoteClickListener) {
+        super(context, 0, notes);
+        this.context = context;
+        this.notes = notes;
+        this.onNoteClickListener = onNoteClickListener;
+
+        // 初始化颜色选项
+        colorOptions = new String[]{"无颜色", "红色", "橙色", "黄色", "绿色", "蓝色", "紫色"};
+        colorValues = new String[]{
+                "#FFFFFF", // 无颜色（白色）
+                "#FFCDD2", // 红色
+                "#FFE0B2", // 橙色
+                "#FFF9C4", // 黄色
+                "#C8E6C9", // 绿色
+                "#BBDEFB", // 蓝色
+                "#E1BEE7"  // 紫色
+        };
+    }
+
+    @NonNull
+    @Override
+    public View getView(final int position, @Nullable View convertView, @NonNull ViewGroup parent) {
+        final Note note = getItem(position);
+        ViewHolder holder;
+
+        if (convertView == null) {
+            convertView = LayoutInflater.from(getContext()).inflate(R.layout.item_note, parent, false);
+            holder = new ViewHolder();
+            holder.textView = convertView.findViewById(R.id.noteHeadingTextView);
+            holder.pinIcon = convertView.findViewById(R.id.pinIcon);
+            holder.colorIndicator = convertView.findViewById(R.id.colorIndicator);
+            convertView.setTag(holder);
+        } else {
+            holder = (ViewHolder) convertView.getTag();
+        }
+
+        holder.textView.setText(note.getHeading());
+
+        // 根据置顶状态显示或隐藏图标
+        if (note.isPinned()) {
+            holder.pinIcon.setVisibility(View.VISIBLE);
+        } else {
+            holder.pinIcon.setVisibility(View.GONE);
+        }
+
+        // 设置颜色指示器
+        if (!"#FFFFFF".equals(note.getColor())) {
+            holder.colorIndicator.setVisibility(View.VISIBLE);
+            holder.colorIndicator.setBackgroundColor(Color.parseColor(note.getColor()));
+        } else {
+            holder.colorIndicator.setVisibility(View.GONE);
+        }
+
+        // 设置编辑笔记的点击监听器
+        convertView.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                if (onNoteClickListener != null) {
+                    onNoteClickListener.onNoteClick(note);
+                }
+            }
+        });
+
+        // 设置长按监听器
+        convertView.setOnLongClickListener(new View.OnLongClickListener() {
+            @Override
+            public boolean onLongClick(View view) {
+                showOptionsDialog(position);
+                return true;
+            }
+        });
+
+        return convertView;
+    }
+
+    private void showOptionsDialog(final int position) {
+        final Note note = getItem(position);
+        String[] options = note.isPinned() ?
+                new String[]{"取消置顶", "更改颜色", "删除笔记"} :
+                new String[]{"置顶笔记", "更改颜色", "删除笔记"};
+
+        AlertDialog.Builder builder = new AlertDialog.Builder(context);
+        builder.setTitle("操作选项")
+                .setItems(options, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialogInterface, int i) {
+                        if (i == 0) { // 第一个选项：置顶/取消置顶
+                            togglePinStatus(note);
+                        } else if (i == 1) { // 第二个选项：更改颜色
+                            showColorPickerDialog(position);
+                        } else if (i == 2) { // 第三个选项：删除
+                            showDeleteDialog(position);
+                        }
+                    }
+                })
+                .show();
+    }
+
+    private void togglePinStatus(Note note) {
+        DatabaseHelper databaseHelper = new DatabaseHelper(context);
+        boolean newPinStatus = !note.isPinned();
+
+        if (databaseHelper.updateNotePinStatus(note.getId(), newPinStatus)) {
+            note.setPinned(newPinStatus);
+            refreshList();
+            String message = newPinStatus ? "笔记已置顶" : "笔记已取消置顶";
+            Toast.makeText(context, message, Toast.LENGTH_SHORT).show();
+        } else {
+            Toast.makeText(context, "操作失败", Toast.LENGTH_SHORT).show();
+        }
+    }
+
+    private void showColorPickerDialog(final int position) {
+        final Note note = getItem(position);
+
+        // 找出当前颜色在选项中的位置
+        int selectedColorIndex = 0;
+        for (int i = 0; i < colorValues.length; i++) {
+            if (colorValues[i].equals(note.getColor())) {
+                selectedColorIndex = i;
+                break;
+            }
+        }
+
+        AlertDialog.Builder builder = new AlertDialog.Builder(context);
+        builder.setTitle("选择笔记颜色")
+                .setSingleChoiceItems(colorOptions, selectedColorIndex, null)
+                .setPositiveButton("确定", new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialogInterface, int i) {
+                        int selectedPosition = ((AlertDialog)dialogInterface).getListView().getCheckedItemPosition();
+                        String newColor = colorValues[selectedPosition];
+
+                        DatabaseHelper databaseHelper = new DatabaseHelper(context);
+                        if (databaseHelper.updateNote(note.getId(), note.getHeading(), note.getDetails(), newColor)) {
+                            note.setColor(newColor);
+                            refreshList();
+                            Toast.makeText(context, "颜色已更改", Toast.LENGTH_SHORT).show();
+                        } else {
+                            Toast.makeText(context, "颜色更改失败", Toast.LENGTH_SHORT).show();
+                        }
+                    }
+                })
+                .setNegativeButton("取消", null)
+                .show();
+    }
+
+    private void showDeleteDialog(final int position) {
+        AlertDialog.Builder builder = new AlertDialog.Builder(context);
+        builder.setMessage("你确定要删除这条笔记吗？")
+                .setPositiveButton("删除", new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialogInterface, int i) {
+                        Note noteToDelete = getItem(position);
+                        if (deleteNoteFromDatabase(noteToDelete.getId())) {
+                            notes.remove(noteToDelete);
+                            notifyDataSetChanged();
+                            showToast("笔记已删除");
+                        } else {
+                            showToast("删除笔记出错");
+                        }
+                    }
+                })
+                .setNegativeButton("取消", new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialogInterface, int i) {
+                        // 用户取消操作
+                    }
+                })
+                .show();
+    }
+
+    private boolean deleteNoteFromDatabase(long noteId) {
+        DatabaseHelper databaseHelper = new DatabaseHelper(context);
+        try {
+            int deletedRows = databaseHelper.deleteNoteById(noteId);
+            return deletedRows > 0;
+        } catch (Exception e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    private void showToast(String message) {
+        Toast.makeText(context, message, Toast.LENGTH_SHORT).show();
+    }
+
+    private void refreshList() {
+        notes.clear();
+        notes.addAll(new DatabaseHelper(context).getAllNotes());
+        notifyDataSetChanged();
+    }
+
+    public interface OnNoteClickListener {
+        void onNoteClick(Note note);
+    }
+
+    private static class ViewHolder {
+        TextView textView;
+        ImageView pinIcon;
+        View colorIndicator; // 颜色指示器
+    }
+}

src/notes-master/app/src/main/java/com/example/notes/NoteDetailActivity.java

@@ -0,0 +1,93 @@
+package com.example.notes;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import androidx.appcompat.app.AppCompatActivity;
+import android.widget.Toast;
+
+public class NoteDetailActivity extends AppCompatActivity {
+
+    private EditText noteHeadingEditText;
+    private EditText noteDetailsEditText;
+    private Button saveNoteButton;
+    private String selectedColor = "#FFFFFF"; // 默认白色
+
+    private long noteId;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_note_detail);
+
+        noteHeadingEditText = findViewById(R.id.noteHeadingEditText);
+        noteDetailsEditText = findViewById(R.id.noteDetailsEditText);
+        saveNoteButton = findViewById(R.id.saveNoteButton);
+
+        // 从意图中获取noteId（如果可用）
+        noteId = getIntent().getLongExtra("noteId", -1);
+
+        if (noteId != -1) {
+            // 加载现有笔记详情进行编辑
+            loadNoteDetails(noteId);
+        }
+
+        // 设置保存笔记的点击监听器
+        saveNoteButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                saveNote();
+            }
+        });
+    }
+
+    private void loadNoteDetails(long noteId) {
+        DatabaseHelper databaseHelper = new DatabaseHelper(this);
+        Note note = databaseHelper.getNoteById(noteId);
+
+        if (note != null) {
+            noteHeadingEditText.setText(note.getHeading());
+            noteDetailsEditText.setText(note.getDetails());
+            selectedColor = note.getColor(); // 加载现有颜色
+        }
+    }
+
+    private void saveNote() {
+        String heading = noteHeadingEditText.getText().toString();
+        String details = noteDetailsEditText.getText().toString();
+
+        // 验证输入
+        if (TextUtils.isEmpty(heading)) {
+            Toast.makeText(this, "请输入标题", Toast.LENGTH_SHORT).show();
+            return;
+        }
+
+        DatabaseHelper databaseHelper = new DatabaseHelper(this);
+
+        if (noteId == -1) {
+            // 新笔记
+            long newNoteId = databaseHelper.insertNote(heading, details, selectedColor);
+            if (newNoteId != -1) {
+                Toast.makeText(this, "笔记保存成功", Toast.LENGTH_SHORT).show();
+            } else {
+                Toast.makeText(this, "保存笔记出错", Toast.LENGTH_SHORT).show();
+            }
+        } else {
+            // 现有笔记
+            boolean updated = databaseHelper.updateNote(noteId, heading, details, selectedColor);
+            if (updated) {
+                Toast.makeText(this, "笔记更新成功", Toast.LENGTH_SHORT).show();
+            } else {
+                Toast.makeText(this, "更新笔记出错", Toast.LENGTH_SHORT).show();
+            }
+        }
+
+        // 导航回主页面
+        Intent intent = new Intent(this, MainActivity.class);
+        startActivity(intent);
+        finish();
+    }
+}

src/notes-master/app/src/main/res/drawable/button_background.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_pressed="true">
+        <shape android:shape="rectangle">
+            <corners android:radius="8dp" />
+            <solid android:color="#0D47A1" /> <!-- 深色调 -->
+            <padding
+                android:bottom="14dp"
+                android:left="16dp"
+                android:right="16dp"
+                android:top="14dp" />
+        </shape>
+    </item>
+    <item>
+        <shape android:shape="rectangle">
+            <corners android:radius="8dp" />
+            <solid android:color="#2196F3" /> <!-- 主色调 -->
+            <padding
+                android:bottom="14dp"
+                android:left="16dp"
+                android:right="16dp"
+                android:top="14dp" />
+            <stroke
+                android:width="0.5dp"
+                android:color="#0D47A1" /> <!-- 边框 -->
+        </shape>
+    </item>
+</selector>

src/notes-master/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>

src/notes-master/app/src/main/res/drawable/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>

src/notes-master/app/src/main/res/drawable/rounded_background.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="@android:color/white" />
+    <corners android:radius="8dp" />
+    <stroke
+        android:width="0.5dp"
+        android:color="#E0E0E0" />
+</shape>

src/notes-master/app/src/main/res/drawable/rounded_edittext.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="@android:color/white" />
+    <corners android:radius="8dp" />
+    <stroke
+        android:width="0.5dp"
+        android:color="#E0E0E0" />
+</shape>

src/notes-master/app/src/main/res/layout/activity_login.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:gravity="center"
+    android:padding="16dp"
+    android:background="#F5F5DC">
+
+    <EditText
+        android:id="@+id/usernameEditText"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:hint="用户名"
+        android:padding="10dp"
+        android:background="@android:color/white"
+        android:layout_marginBottom="10dp"
+        android:textColorHint="@color/gray"
+        android:textColor="@color/black"/>
+
+    <EditText
+        android:id="@+id/passwordEditText"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:hint="密码"
+        android:padding="10dp"
+        android:background="@android:color/white"
+        android:inputType="textPassword"
+        android:textColorHint="@color/gray"
+        android:textColor="@color/black"/>
+
+    <Button
+        android:id="@+id/loginButton"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="登录"
+        android:background="@color/purple_500"
+        android:textColor="@color/white"
+        android:padding="10dp"
+        android:layout_marginTop="20dp"/>
+</LinearLayout>

src/notes-master/app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,51 @@
+<?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"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="#F5F5F5"
+    android:padding="16dp">
+
+    <SearchView
+        android:id="@+id/searchView"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:queryHint="搜索笔记"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginBottom="16dp"/>
+
+    <ListView
+        android:id="@+id/noteListView"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:divider="#E0E0E0"
+        android:dividerHeight="1dp"
+        android:padding="10dp"
+        app:layout_constraintTop_toBottomOf="@id/searchView"
+        app:layout_constraintBottom_toTopOf="@id/newNoteButton"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:elevation="4dp"
+        android:background="@drawable/rounded_background" />
+
+    <Button
+        android:id="@+id/newNoteButton"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:text="新建笔记"
+        android:textSize="16sp"
+        android:textColor="@android:color/white"
+        android:padding="16dp"
+        android:fontFamily="sans-serif-medium"
+        android:stateListAnimator="@null"
+        android:elevation="6dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginTop="24dp"
+        android:background="@drawable/button_background"
+        android:transitionName="fabTransition" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

src/notes-master/app/src/main/res/layout/activity_note_detail.xml

@@ -0,0 +1,70 @@
+<?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"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="#F5F5F5"
+    android:padding="16dp">
+
+    <EditText
+        android:id="@+id/noteHeadingEditText"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:inputType="text"
+        android:hint="笔记标题"
+        android:padding="12dp"
+        android:textColorHint="#9E9E9E"
+        android:textColor="#212121"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginBottom="12dp"
+        android:elevation="4dp"
+        android:background="@drawable/rounded_edittext" />
+
+    <!-- 分隔线 -->
+    <View
+        android:id="@+id/separator"
+        android:layout_width="0dp"
+        android:layout_height="1dp"
+        android:background="#E0E0E0"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/noteHeadingEditText"
+        android:layout_marginTop="8dp"
+        android:layout_marginBottom="8dp"/>
+
+    <EditText
+        android:id="@+id/noteDetailsEditText"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:hint="笔记详情"
+        android:gravity="top"
+        android:padding="12dp"
+        android:textColorHint="#9E9E9E"
+        android:textColor="#212121"
+        app:layout_constraintTop_toBottomOf="@id/separator"
+        app:layout_constraintBottom_toTopOf="@id/saveNoteButton"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:elevation="4dp"
+        android:background="@drawable/rounded_edittext" />
+
+    <Button
+        android:id="@+id/saveNoteButton"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:text="保存笔记"
+        android:textSize="16sp"
+        android:textColor="@android:color/white"
+        android:padding="14dp"
+        android:fontFamily="sans-serif-medium"
+        android:elevation="6dp"
+        android:stateListAnimator="@null"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginTop="24dp"
+        android:background="@drawable/button_background" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

src/notes-master/app/src/main/res/layout/item_note.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal"
+    android:padding="12dp"
+    android:background="?android:attr/selectableItemBackground">
+
+    <ImageView
+        android:id="@+id/pinIcon"
+        android:layout_width="24dp"
+        android:layout_height="24dp"
+        android:src="@android:drawable/star_big_on"
+        android:visibility="gone"
+        android:layout_marginEnd="8dp"/>
+
+    <View
+        android:id="@+id/colorIndicator"
+        android:layout_width="16dp"
+        android:layout_height="16dp"
+        android:layout_gravity="center_vertical"
+        android:layout_marginEnd="8dp"
+        android:background="#FFFFFF"
+        android:visibility="gone"
+        android:shape="oval"/>
+
+    <TextView
+        android:id="@+id/noteHeadingTextView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textSize="18sp"
+        android:textColor="#333"/>
+</LinearLayout>

src/notes-master/app/src/main/res/mipmap-anydpi/ic_launcher.xml

@@ -0,0 +1,6 @@
+<?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" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

src/notes-master/app/src/main/res/mipmap-anydpi/ic_launcher_round.xml

@@ -0,0 +1,6 @@
+<?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" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

src/notes-master/app/src/main/res/values-night/themes.xml

@@ -0,0 +1,7 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Base.Theme.Notes" parent="Theme.Material3.DayNight.NoActionBar">
+        <!-- Customize your dark theme here. -->
+        <!-- <item name="colorPrimary">@color/my_dark_primary</item> -->
+    </style>
+</resources>

src/notes-master/app/src/main/res/values/colors.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+    <color name="gray">#FF808080</color>
+    <color name="light_gray">#FFE0E0E0</color>
+</resources>

src/notes-master/app/src/main/res/values/strings.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">My Notes</string>
+    <string name="username_hint">Username</string>
+    <string name="password_hint">Password</string>
+    <string name="login_button">Login</string>
+    <string name="new_note_button">New Note</string>
+    <string name="save_note_button">Save Note</string>
+    <string name="note_heading_hint">Note Heading</string>
+    <string name="note_details_hint">Note Details</string>
+    <string name="error_empty_credentials">Please enter username and password</string>
+    <string name="error_invalid_credentials">Invalid username or password</string>
+</resources>

src/notes-master/app/src/main/res/values/themes.xml

@@ -0,0 +1,24 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Base.Theme.Notes" parent="Theme.Material3.DayNight.NoActionBar">
+        <!-- Customize your light theme here. -->
+        <item name="colorPrimary">@color/purple_500</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/white</item>
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_700</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+    </style>
+
+    <!-- 应用实际使用的主题，命名为 AppTheme -->
+    <style name="AppTheme" parent="Base.Theme.Notes">
+        <!-- 在这里添加任何特定于应用的主题自定义 -->
+    </style>
+
+    <!-- 登录界面的主题，可选 -->
+    <style name="AppTheme.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+    </style>
+</resources>

src/notes-master/app/src/main/res/xml/backup_rules.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older that API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>

src/notes-master/app/src/main/res/xml/data_extraction_rules.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>

src/notes-master/app/src/test/java/com/example/notes/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package com.example.notes;
+
+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);
+    }
+}

src/notes-master/build.gradle.kts

@@ -0,0 +1,4 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+    id("com.android.application") version "8.2.1" apply false
+}

src/notes-master/gradle.properties

@@ -0,0 +1,21 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true

src/notes-master/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Tue Feb 06 01:04:10 IST 2024
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

src/notes-master/gradlew

@@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"

src/notes-master/gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

src/notes-master/settings.gradle.kts

@@ -0,0 +1,18 @@
+pluginManagement {
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = "notes"
+include(":app")
+