底部菜单

<LinearLayout
        android:id="@+id/main_radio"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_gravity="bottom"
        android:background="@drawable/toolbar2_bg"
        android:gravity="center_vertical"
        android:orientation="horizontal" >

        <Button
            android:id="@+id/radio_button0"
            style="@style/radio_style"
            android:drawableTop="@drawable/icon_1_n"
            android:tag="radio_button0"
            android:text="确定选中" />

        <Button
            android:id="@+id/radio_button1"
            style="@style/radio_style"
            android:drawableTop="@drawable/icon_2_n"
            android:tag="radio_button1"
            android:text="删除选中" />

        <Button
            android:id="@+id/radio_button2"
            style="@style/radio_style"
            android:drawableTop="@drawable/icon_3_n"
            android:tag="radio_button2"
            android:text="删除全部" />
    </LinearLayout>