侧拉，抽屉

不念不忘少年蓝@ 2023-10-18 13:53 107阅读 0赞

Android侧拉，抽屉

**核心方法： drawer\_layout.openDrawer(left\_drawer);**

布局：

<?xml version="1.0" encoding="utf-8"?>
    <android.support.v4.widget.DrawerLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/drawer_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        
        <FrameLayout
            android:id="@+id/content_frame"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#ff00">
    
            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:id="@+id/btn"
                android:text="侧拉"/>
        </FrameLayout>
        
        <ListView
            android:id="@+id/left_drawer"
            android:layout_width="240dp"
            android:layout_height="match_parent"
            android:layout_gravity="start"
            android:choiceMode="singleChoice"
            android:divider="#33333333"
            android:dividerHeight="0dp"
            android:background="#ffeeeeee"
            android:scrollbars="none"/>
    </android.support.v4.widget.DrawerLayout>

主页面代码：

public class MainActivity extends AppCompatActivity {
    
        private DrawerLayout drawer_layout;
        private ListView left_drawer;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
    
            drawer_layout = findViewById(R.id.drawer_layout);
            left_drawer = findViewById(R.id.left_drawer);
    //        drawer_layout.openDrawer(left_drawer);
            
            
            Button btn = findViewById(R.id.btn);
            btn.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    drawer_layout.openDrawer(left_drawer);
                }
            });
    
    
        }
    }