uu-android/WeiChat/src/main/res/layout/activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
   >

    <FrameLayout
        android:id="@+id/main_content"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_above="@+id/main_tab_radio_group" >
    </FrameLayout>

    <include
        android:id="@+id/main_tab_radio_group"
        android:layout_width="match_parent"
        android:layout_height="60dp"
        android:layout_alignParentBottom="true"
        layout="@layout/layout_main_tab_radio_group" />

</RelativeLayout>