Android使用DrawerLayout实现双向侧滑菜单

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent">
 <RelativeLayout 
 android:layout_width="fill_parent"
 android:layout_height="45dp"
 android:background="#00ff00"
 >
 <Button 
 android:id="@+id/btn_toggle_left"
 android:layout_width="wrap_content"
 android:layout_height="50dp"
 android:text="左开关"
 />
 <Button 
 android:layout_alignParentRight="true"
 android:id="@+id/btn_toggle_right"
 android:layout_width="wrap_content"
 android:layout_height="50dp"
 android:text="右开关"
 />
 </RelativeLayout>
 <android.support.v4.widget.DrawerLayout
 android:id="@+id/drawerlayout"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 >
 <!-- 主布局，位于DrawerLayout的第一次子控件，位置不可以放错 -->
 <FrameLayout 
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 >
 <ImageView 
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:background="@drawable/mainbackground"
 />
 </FrameLayout>
 <!-- 左侧菜单 -->
 <RelativeLayout
 android:id="@+id/layout_menu_left"
 android:layout_gravity="start" 
 android:layout_width="150dp"
 android:layout_height="fill_parent"
 android:background="#000"
 >
 <TextView
 android:textColor="#ffffff"
 android:gravity="center"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:text="左侧菜单"
 />
 </RelativeLayout>
 <!-- 右侧菜单 -->
 <RelativeLayout
 android:id="@+id/layout_menu_right"
 android:layout_gravity="end" 
 android:layout_width="150dp"
 android:layout_height="fill_parent"
 android:background="#000"
 >
 <TextView
 android:textColor="#ffffff"
 android:gravity="center"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:text="右侧菜单"
 />
 </RelativeLayout>

 </android.support.v4.widget.DrawerLayout>
</LinearLayout>

public class MainActivity extends Activity implements OnClickListener{

 private DrawerLayout mDrawerLayout;
 private View v_menu_left,v_menu_right;
 private Button btn_left,btn_right;

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

 private void initListener() {
 btn_left.setOnClickListener(this);
 btn_right.setOnClickListener(this);
 }

 private void initView() {
 mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerlayout);
 v_menu_left = findViewById(R.id.layout_menu_left);
 v_menu_right = findViewById(R.id.layout_menu_right);
 btn_left = (Button) findViewById(R.id.btn_toggle_left);
 btn_right = (Button) findViewById(R.id.btn_toggle_right);
 }

 @Override
 public void onClick(View v) {
 if(v.getId()==R.id.btn_toggle_left){
 toggleLeft();
 }else if(v.getId()==R.id.btn_toggle_right){
 toggleRight();
 }
 }

 private void toggleRight() {
 if(mDrawerLayout.isDrawerOpen(v_menu_right)){
 mDrawerLayout.closeDrawer(v_menu_right);
 }else{
 mDrawerLayout.openDrawer(v_menu_right);
 }

 }

 private void toggleLeft() {
 if(mDrawerLayout.isDrawerOpen(v_menu_left)){
 mDrawerLayout.closeDrawer(v_menu_left);
 }else{
 mDrawerLayout.openDrawer(v_menu_left);
 }
 }

}