public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    DrawerLayout drawerLayout=findViewById(R.id.draw);
    //点击主界面中的按钮弹出侧滑界面
    drawerLayout.openDrawer(Gravity.LEFT);
    //点击侧滑界面中的按钮缩回侧滑界面
    drawerLayout.closeDrawer(Gravity.LEFT);
    //drawerLayout的侧拉监听事件
    drawerLayout.addDrawerListener(new DrawerLayout.DrawerListener() {
        @Override
        public void onDrawerSlide(@NonNull View view, float v) {
        }
        @Override
        public void onDrawerOpened(@NonNull View view) {
       Log.d("gyy","打开");
        }
        @Override
        public void onDrawerClosed(@NonNull View view) {
            Log.d("gyy","关闭");
        }

        @Override
        public void onDrawerStateChanged(int i) {
            Log.d("gyy","改变");
        }
    });

}

}
//xml中的布局如下

<android.support.v4.widget.DrawerLayout
    android:id="@+id/draw"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#000000"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="left"
        android:background="#ded3d3"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="#000000" />
    </LinearLayout>
</android.support.v4.widget.DrawerLayout>