<!-- res/layout/activity_main.xml -->
<androidx.drawerlayout.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawerLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!-- 主内容布局 -->
    <FrameLayout
        android:id="@+id/mainContent"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <!-- 主要内容放在这里 -->

    </FrameLayout>

    <!-- 侧滑菜单布局 -->
    <LinearLayout
        android:id="@+id/navDrawer"
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:orientation="vertical"
        android:background="#FFFFFF">

        <!-- 侧滑菜单的内容放在这里 -->

    </LinearLayout>

</androidx.drawerlayout.widget.DrawerLayout>

import android.os.Bundle;
import androidx.appcompat.app.ActionBarDrawerToggle;
import androidx.appcompat.app.AppCompatActivity;
import androidx.drawerlayout.widget.DrawerLayout;

public class MainActivity extends AppCompatActivity {

    private DrawerLayout drawerLayout;
    private ActionBarDrawerToggle drawerToggle;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // 获取 DrawerLayout
        drawerLayout = findViewById(R.id.drawerLayout);

        // 创建 ActionBarDrawerToggle，并与 DrawerLayout 关联
        drawerToggle = new ActionBarDrawerToggle(
                this,
                drawerLayout,
                R.string.drawer_open,
                R.string.drawer_close);

        // 设置 DrawerToggle 为 DrawerLayout 的侦听器
        drawerLayout.addDrawerListener(drawerToggle);

        // 启用 ActionBar 的 Home 按钮（通常是应用程序图标）
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setHomeButtonEnabled(true);
    }

    // 处理 ActionBar 上的 Home 按钮点击事件
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (drawerToggle.onOptionsItemSelected(item)) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    // 处理 DrawerLayout 的状态变化事件
    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        // 同步 DrawerToggle 的状态
        drawerToggle.syncState();
    }

    // 处理屏幕旋转等导致的 DrawerLayout 状态变化
    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        drawerToggle.onConfigurationChanged(newConfig);
    }
}