Android 3新特性+源码实现(6)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:id="@+id/lines"
  >
  <Button
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:layout_gravity="center"
   android:id="@+id/notifications"
   android:text="notifications"
   /> 
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  >
    <Button
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:layout_gravity="center"
     android:onClick="onPopuButtonClick"
     android:text="popu_menu_button"
     />
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  >
  <SearchView
   android:id="@+id/search_view"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   >
   </SearchView> 
  <ListView
   android:id="@+id/list_view"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:layout_weight="1"
   ></ListView> 
</LinearLayout>