<ImageButton android:id="@+id/alarm_button"
style="@style/ButtonStripLeft"
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:layout_weight=".25"
        android:src="@drawable/ic_clock_strip_alarm"
        android:contentDescription="@string/alarm_button_description"
        />
    <ImageButton android:id="@+id/gallery_button"
style="@style/ButtonStripMiddle"
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:layout_weight=".25"
        android:src="@drawable/ic_clock_strip_gallery"
        android:contentDescription="@string/gallery_button_description"
        />
    <ImageButton android:id="@+id/music_button"
style="@style/ButtonStripMiddle"
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:layout_weight=".25"
        android:src="@drawable/ic_clock_strip_music"
        android:contentDescription="@string/music_button_description"
        />
    <ImageButton android:id="@+id/home_button"
style="@style/ButtonStripRight"
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:layout_weight=".25"
        android:src="@drawable/ic_clock_strip_home"
        android:contentDescription="@string/home_button_description"/> 
此布局是为了 显示button,但是我想将四个image显示到上面,是不是需要用到table?