test4

Test1/android/database/sqlite/annotations.xml

@@ -0,0 +1 @@
+<root></root>

Test1/app/src/main/AndroidManifest.xml

@@ -17,6 +17,10 @@
         <activity
             android:name=".Activity.userActivity"
             android:exported="true"/>
+        <activity
+            android:name="com.example.test1.Activity.IndexActivity"
+            android:exported="true"
+            tools:ignore="Instantiatable" />
         <activity
             android:name=".Activity.adapterActivity"
             android:exported="true"/>

Test1/app/src/main/java/com/example/test1/Activity/IndexActivity.java

@@ -0,0 +1,4 @@
+package com.example.test1.Activity;
+
+public class IndexActivity {
+}

Test1/app/src/main/java/com/example/test1/Activity/MainActivity.java

@@ -1,31 +1,27 @@
 package com.example.test1.Activity;
 
-import androidx.appcompat.app.AppCompatActivity;
-
 import android.content.Intent;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.Button;
 import android.widget.EditText;
 import android.widget.Toast;
 
-import com.example.test1.R;
+import androidx.appcompat.app.AppCompatActivity;
 
-public class MainActivity extends AppCompatActivity {
-    Button register;
+import com.example.test1.Database;
+import com.example.test1.R;
 
-    private EditText usernameEdit, passwordEdit;
+public class MainActivity extends AppCompatActivity implements View.OnClickListener {
+    private Button register,login;
+    private EditText passwordEdit,usernameText;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
-
-        register = (Button)findViewById(R.id.register);
-        register.setOnClickListener(this::onClick);
-        Button login = (Button) findViewById(R.id.login);
-        login.setOnClickListener(this::onClick1);
-
         init();
     }
 
@@ -33,8 +29,12 @@ public class MainActivity extends AppCompatActivity {
      * 界面组件初始化
      */
     private void init() {
-        usernameEdit = findViewById(R.id.username);
-        passwordEdit = findViewById(R.id.password);
+        usernameText=findViewById(R.id.username);
+        passwordEdit=findViewById(R.id.password);
+        login=findViewById(R.id.login);
+        login.setOnClickListener(this::onClick1);
+        register=findViewById(R.id.register);
+        register.setOnClickListener(this::onClick);
     }
 
 
@@ -44,24 +44,37 @@ public class MainActivity extends AppCompatActivity {
     }
     public void onClick1(View view) {
         switch (view.getId()){
+            case R.id.register:
+                Intent intent1=new Intent(MainActivity.this, registerActivity.class);
+                startActivity(intent1);
+                break;
             case R.id.login:
-                validateRegister();
+                if(validateLogin()){
+                    Intent intent = new Intent(MainActivity.this, CategoryActivity.class);
+                    Bundle bundle=new Bundle();
+                    Database dateBase=new Database(MainActivity.this);
+                    bundle.putString("username",usernameText.getText().toString());
+                    bundle = Database.queryUserInfo(dateBase.getReadableDatabase(), bundle);
+                    intent.putExtras(bundle);
+                    startActivity(intent);
+                }
+                else{
+                    Toast.makeText(MainActivity.this,"账号或者密码错误",Toast.LENGTH_SHORT).show();
+                }
                 break;
         }
     }
-    /**
-     * 注册验证
-     */
-    public void validateRegister() {
 
-        Intent intent = new Intent(MainActivity.this, CategoryActivity.class);
-        String username = usernameEdit.getText().toString();
-        String password = passwordEdit.getText().toString();
-        //这里也可以再进行其它的验证，如是否符合要求等，符合就进行下一个界面操作
-        if (!username.equals("") || !password.equals("")) {
-            startActivity(intent);
-        } else {
-            Toast.makeText(MainActivity.this, "账号或密码未填写", Toast.LENGTH_SHORT).show();
+    private boolean validateLogin() {
+        String username=usernameText.getText().toString();
+        String password=passwordEdit.getText().toString();
+        Database dateBase=new Database(MainActivity.this);
+        SQLiteDatabase sqLiteDatabase = dateBase.getReadableDatabase();
+        Cursor cursor=sqLiteDatabase.rawQuery("select * from good_user where username=? and password=?",new String[]{username,password});
+        if(cursor.getCount()>0){
+            return true;
         }
+        return false;
     }
-}
+
+}

Test1/app/src/main/java/com/example/test1/Activity/registerActivity.java

@@ -1,6 +1,8 @@
 package com.example.test1.Activity;
 
+import android.content.ContentValues;
 import android.content.Intent;
+import android.database.sqlite.SQLiteDatabase;
 import android.graphics.Color;
 import android.os.Bundle;
 import android.view.View;
@@ -13,6 +15,7 @@ import android.widget.Toast;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AppCompatActivity;
 
+import com.example.test1.Database;
 import com.example.test1.R;
 import com.lljjcoder.citypickerview.widget.CityPicker;
 
@@ -122,6 +125,10 @@ public class registerActivity extends AppCompatActivity implements View.OnClickL
                     bundle.putString("sex", sexStr);
                     bundle.putString("city", city);
                     intent.putExtras(bundle);
+                    //用SQLite数据库存储注册信息
+                    Database dateBase= new Database(registerActivity.this);
+                    SQLiteDatabase sqLiteDatabase = dateBase.getWritableDatabase();
+                    insertData(sqLiteDatabase, bundle);
                     startActivity(intent);
                 } else {
                     Toast.makeText(registerActivity.this, "请选择地址", Toast.LENGTH_SHORT).show();
@@ -142,4 +149,19 @@ public class registerActivity extends AppCompatActivity implements View.OnClickL
         //根据用户选择来改变sex的值
         sexStr = checkedId == R.id.reg_man ? "男" : "女";
     }
-}
+
+    private void insertData(SQLiteDatabase sqLiteDatabase, Bundle bundle){
+        ContentValues contentValues=new ContentValues();
+        contentValues.put("username",bundle.getString("username"));
+        contentValues.put("password",bundle.getString("password"));
+        contentValues.put("sex",bundle.getString("sex"));
+        contentValues.put("city",bundle.getString("city"));
+        sqLiteDatabase.insert("good_user",null,contentValues);
+        sqLiteDatabase.close();
+    }
+
+    @Override
+    public void onPointerCaptureChanged(boolean hasCapture) {
+        super.onPointerCaptureChanged(hasCapture);
+    }
+}

Test1/app/src/main/java/com/example/test1/Database.java

@@ -0,0 +1,56 @@
+package com.example.test1;
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.os.Bundle;
+
+import androidx.annotation.Nullable;
+
+
+public class Database extends SQLiteOpenHelper {
+    public Database(@Nullable Context context) {
+
+        super(context, "orange", null, 1);
+    }
+
+    @Override
+    public void onCreate(SQLiteDatabase db) {
+        //创建用户表
+        String sql = "create table good_user(id integer primary key autoincrement, username varchar(50), password varchar(50),sex varchar(10),city carchar(50))";
+        db.execSQL(sql);
+    }
+
+    @Override
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+
+    }
+
+    //插入数据
+    public void insertUser(SQLiteDatabase sqLiteDatabase, String username, String password, String sex, String city) {
+        ContentValues contentValues = new ContentValues();
+        contentValues.put("username", username);
+        contentValues.put("password", password);
+        contentValues.put("sex", sex);
+        contentValues.put("city", city);
+        sqLiteDatabase.insert("good_user", null, contentValues);
+        sqLiteDatabase.close();
+    }
+
+    //查询数据
+    public static Bundle queryUserInfo(SQLiteDatabase sqLiteDatabase, Bundle bundle) {
+        String username = bundle.getString("username");
+        Cursor cursor = sqLiteDatabase.rawQuery("select * from good_user where username=?", new String[]{username});
+        if (cursor != null) {
+            while (cursor.moveToNext()) {
+                bundle.putString("sex", cursor.getString(3));
+                bundle.putString("city", cursor.getString(4));
+            }
+        }
+        cursor.close();
+        sqLiteDatabase.close();
+        return bundle;
+    }
+}

Test1/app/src/main/res/layout/activity_main.xml

@@ -8,7 +8,6 @@
     android:background="@color/bluepurple"
     tools:context=".Activity.MainActivity">
 
-<!--    <ListView-->
 <!--        android:id="@+id/listview"-->
 <!--        android:layout_width="match_parent"-->
 <!--        android:layout_height="match_parent">-->

Test1/app/src/main/res/layout/user.xml

@@ -26,7 +26,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:background="@color/white"
-        android:layout_marginTop="20dp">
+        android:layout_marginTop="10dp">
         <ImageView
             android:layout_width="wrap_content"
             android:layout_height="40dp"
@@ -53,7 +53,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:background="@color/white"
-        android:layout_marginTop="20dp">
+        android:layout_marginTop="10dp">
         <ImageView
             android:layout_width="wrap_content"
             android:layout_height="40dp"
@@ -135,7 +135,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:background="@color/white"
-        android:layout_marginTop="20dp">
+        android:layout_marginTop="10dp">
 
         <ImageView
             android:id="@+id/user_general"
@@ -166,7 +166,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:background="#FFF"
-        android:layout_marginTop="20dp"
+        android:layout_marginTop="10dp"
         android:orientation="horizontal">
 
         <TextView
@@ -192,7 +192,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:background="@color/white"
-        android:layout_marginTop="20dp"
+        android:layout_marginTop="10dp"
         android:layout_marginBottom="1dp">
         <ImageView
             android:id="@+id/user_setting"
@@ -220,7 +220,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:gravity="center_horizontal"
-        android:layout_marginTop="20dp">
+        android:layout_marginTop="10dp">
     <Button
         android:id="@+id/back"
         android:layout_width="250dp"