How can I align image vertical center in a Linear Layout

I have the following layout, which is 1 icon on the left and 2 text views (stack on top of each other) on the right. I would like to have the text1 vertically center in the panel and when I make the text2 Visible.GONE. Can you please tell me how can i do that?

<RelativeLayout android:id="@+id/panel"
        android:layout_width="fill_parent"
        android:layout_height="?android:attr/listPreferredItemHeight">
    <ImageView
        android:id="@+id/icon1"
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:layout_gravity="center_vertical"/>
    <TextView android:id="@+id/text1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@id/icon1"
        android:textAppearance="?android:attr/textAppearanceSmal开发者_JS百科l"
        android:layout_gravity="center_vertical"/>
    <TextView android:id="@+id/text2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@id/icon1"
        android:layout_below="@id/text1"
        android:textAppearance="?android:attr/textAppearanceSmall"/>
    </RelativeLayout>

All you have to do is, in your first example, to replace android:gravity on the ImageView by android:layout_gravity. That's all :)

I'd change it to one relative layout with only three views inside. And you can use android:layout_centerHorizontal, android:layout_centerVertical to align stuff as well.