学习使用Material Design控件（二）使用DrawerLayout实现侧滑菜单栏效果

<android.support.v4.widget.drawerlayout xmlns:android=“http://schemas.android.com/apk/res/android”
 xmlns:app=“http://schemas.android.com/apk/res-auto”
 android:id=“@+id/drawer_layout”
 android:layout_width=“match_parent”
 android:layout_height=“match_parent”
 android:fitssystemwindows=“true”>
 <android.support.design.widget.navigationview
 android:id=“@+id/navigation_view”
 android:layout_width=“wrap_content”
 android:layout_height=“match_parent”
 android:layout_gravity=“start”
 app:headerlayout=“@layout/navigation_header”
 app:menu=“@menu/drawer” />
</android.support.v4.widget.drawerlayout>

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 android:layout_width="match_parent"
 android:layout_height="192dp"
 android:background="?attr/colorprimarydark"
 android:gravity="center"
 android:orientation="vertical"
 android:padding="16dp"
 android:theme="@style/themeoverlay.appcompat.dark">

 <de.hdodenhof.circleimageview.circleimageview
 android:id="@+id/profile_image"
 android:layout_width="72dp"
 android:layout_height="72dp"
 android:layout_margintop="20dp"
 android:src="@mipmap/profile"
 app:border_color="@color/primary_light"
 app:border_width="2dp" />

 <textview
 android:layout_margintop="10dp"
 android:textsize="18sp"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:text="app开发者"
 android:gravity="center"
 android:textappearance="@style/textappearance.appcompat.body1"
  />

</linearlayout>

<menu xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 tools:context=".mainactivity">
 <group android:checkablebehavior="single">
 <item
  android:id="@+id/navigation_item_example"
  android:icon="@drawable/ic_favorite"
  android:title="@string/navigation_example" />
 <item
  android:id="@+id/navigation_item_blog"
  android:icon="@drawable/ic_favorite"
  android:title="@string/navigation_my_blog" />

 <item
  android:id="@+id/navigation_item_about"
  android:icon="@drawable/ic_favorite"
  android:title="@string/navigation_about" />
 </group>
</menu>

 //设置toolbar
 mtoolbar = (toolbar) findviewbyid(r.id.toolbar);
 setsupportactionbar(mtoolbar);

//设置drawerlayout
 mdrawerlayout = (drawerlayout) findviewbyid(r.id.drawer_layout);
 mdrawertoggle = new actionbardrawertoggle(this, mdrawerlayout, mtoolbar, 
     r.string.drawer_open, r.string.drawer_close);  
 mdrawertoggle.syncstate();
 mdrawerlayout.setdrawerlistener(mdrawertoggle);

//设置navigationview点击事件
 mnavigationview = (navigationview) findviewbyid(r.id.navigation_view);
 setupdrawercontent(mnavigationview);
 //设置navigationview点击事件
private void setupdrawercontent(navigationview navigationview) {
 navigationview.setnavigationitemselectedlistener(
  new navigationview.onnavigationitemselectedlistener() {
   @override
   public boolean onnavigationitemselected(menuitem menuitem) {
   switch (menuitem.getitemid()) {
    case r.id.navigation_item_example:
    switchtoexample();
    break;
    case r.id.navigation_item_blog:
    switchtoblog();
    break;
    case r.id.navigation_item_about:
    switchtoabout();
    break;

   }
   menuitem.setchecked(true);
   mdrawerlayout.closedrawers();
   return true;
   }
  });
 }