DrawerLayout的使用

DrawerLayout 是v4的扩展组件，具体使用步骤如下：

1、布局文件内容如下：

<?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">
<!--主布局-->
<RelativeLayout
android:id="@+id/content"
android:layout_width="match_parent"
android:layout_height="match_parent">

</RelativeLayout>
<!--左侧滑动菜单-->
<RelativeLayout
android:id="@+id/drawer_left_menu"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start">

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

注：

android:layout_gravity="start"

这个属性是必须的。

2、初始化DrawerLayout组件

DrawerLayout mDrawerLayout;
RelativeLayout mDrawerLeftMenu;
ActionBarDrawerToggle mDrawerToggle;

private void setupDrawerLayout() {
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerLeftMenu = (RelativeLayout) findViewById(R.id.drawer_left_menu);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.drawer_open, R.string.drawer_close) {

@Override
public void onDrawerClosed(View view) {
super.onDrawerClosed(view);
}

@Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
}

@Override
public void onDrawerSlide(View drawerView, float slideOffset) {
super.onDrawerSlide(drawerView, slideOffset);
}

@Override
public void onDrawerStateChanged(int newState) {
super.onDrawerStateChanged(newState);
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
mDrawerToggle.syncState();
}

3、在Activity的onCreate(Bundle savedInstanceState)方法中调用

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

setupDrawerLayout();
}

4、想打开或者关闭左侧菜单的调用下面的方法

public void toggleLeftMenu() {
if (mDrawerLayout.isDrawerOpen(mDrawerLeftMenu)) {
mDrawerLayout.closeDrawer(mDrawerLeftMenu);
} else {
mDrawerLayout.openDrawer(mDrawerLeftMenu);
}
}

5、关闭手势滑动

public void closeDrawerGestureSlide() {
mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED);
}

6、打开手势滑动

public void openDrawerGestureSlide() {
mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED);
}