Android Button: Place Image in center and text at bottom

To align multiple symmetric buttons in Android View, each button having an image in the center and text at bottom, use the following code: 

<LinearLayout
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <TableLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TableRow
            android:layout_width="fill_parent"
            android:layout_height="0dp"
            android:weightSum="1"
            android:layout_weight="0.5">
            <RelativeLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="0.5">
                <Button
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:id="@+id/button1"
                    android:background="@drawable/right_buttom_btn_line"
                    android:text="Botton 1"
                    android:textSize="18sp"
                    android:gravity="center|bottom"
                    android:singleLine="false"
                    android:paddingBottom="10dp"/>
                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@drawable/location"
                    android:layout_centerInParent="true"/>
            </RelativeLayout>
            <RelativeLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="0.5">
                <Button
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:id="@+id/button2"
                    android:background="@drawable/right_buttom_btn_line"
                    android:text="Botton 2"
                    android:textSize="18sp"
                    android:gravity="center|bottom"
                    android:singleLine="false"
                    android:paddingBottom="10dp"/>
                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@drawable/settings"
                    android:layout_centerInParent="true"/>
            </RelativeLayout>
        </TableRow>

        <TableRow
            android:layout_width="fill_parent"
            android:layout_height="0dp"
            android:weightSum="1"
            android:layout_weight="0.5">
            <RelativeLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="0.5">
                <Button
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:id="@+id/button3"
                    android:background="@drawable/right_buttom_btn_line"
                    android:text="Button 3"
                    android:textSize="18sp"
                    android:gravity="center|bottom"
                    android:paddingBottom="10dp"/>
                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@drawable/location"
                    android:layout_centerInParent="true"/>
            </RelativeLayout>
            <RelativeLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="0.5">
                <Button
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:id="@+id/button4"
                    android:background="@drawable/right_buttom_btn_line"
                    android:text="Button 4"
                    android:textSize="18sp"
                    android:gravity="center|bottom"
                    android:paddingBottom="10dp"/>
                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@drawable/settings"
                    android:layout_centerInParent="true"/>
            </RelativeLayout>
        </TableRow>

        <TableRow
            android:layout_width="fill_parent"
            android:layout_height="0dp"
            android:weightSum="1"
            android:layout_weight="0.5">
            <RelativeLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="0.5">
                <Button
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:id="@+id/button5"
                    android:background="@drawable/right_buttom_btn_line"
                    android:text="Button 5"
                    android:textSize="18sp"
                    android:gravity="center|bottom"
                    android:paddingBottom="10dp"/>
                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@drawable/location"
                    android:layout_centerInParent="true"/>
            </RelativeLayout>
            <RelativeLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="0.5">
                <Button
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:id="@+id/button6"
                    android:background="@drawable/right_buttom_btn_line"
                    android:text="Button 6"
                    android:textSize="18sp"
                    android:gravity="center|bottom"
                    android:paddingBottom="10dp"/>
                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@drawable/settings"
                    android:layout_centerInParent="true"/>
            </RelativeLayout>
        </TableRow>

    </TableLayout>

</LinearLayout>

You can find the result in the screenshot below.