Question

I have a relative layout within another layout that represents a menu bar on the bottom of the screen. no i wand the four menu icons be symmetrically distributet on the menu bar.

here is my code so far. problem is i dont want to set absolute “dip” values. is there a way to somehow get the screenwith and devide it by four ?

---

<RelativeLayout
android:layout_height="80dip"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:background="@android:color/black"
android:layout_alignParentBottom="true" >
<ImageButton
 android:layout_alignParentBottom="true"
    android:layout_width="70dip"
    android:layout_height="70dip"
    android:id="@+id/homeButton"
    android:layout_alignParentLeft="true"
    android:src="@drawable/homeicon"/>
<ImageButton
    android:id="@+id/searchButton"
    android:layout_width="70dip"
    android:layout_toRightOf="@+id/homeButton"
    android:layout_alignParentBottom="true"
    android:layout_height="70dip"
    android:src="@drawable/searchicon"/>
<ImageButton
 android:layout_alignParentBottom="true"
    android:layout_toRightOf="@+id/searchButton"
    android:layout_width="70dip"
    android:layout_height="70dip"
    android:id="@+id/bookmarksButton"
    android:src="@drawable/bookmarksicon" />
<ImageButton
    android:id="@+id/settingsButton"
    android:layout_width="70dip"
    android:layout_toRightOf="@+id/bookmarksButton"
    android:layout_alignParentBottom="true"
    android:layout_alignParentRight="true"
    android:layout_height="70dip"
    android:src="@drawable/settingsicon" />

Answer 1

I think I see what you mean..you could try using a LinearLayout as the parent Viewgroup and for each button set width to 0dip and layout_weight to 1; something like this:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_above="@+id/footer" android:id="@+id/footer2"
        android:orientation="horizontal" android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:layout_alignParentBottom="true"
        android:background="#FF707070">
        <ImageButton android:layout_weight="1"
            android:layout_width="0dip" android:layout_height="70dip" android:id="@+id/homeButton"
            android:layout_alignParentLeft="true" android:src="@drawable/homeicon" />
        <ImageButton android:id="@+id/searchButton"
            android:layout_weight="1" android:layout_width="0dip"
            android:layout_height="70dip" android:src="@drawable/searchicon" />
        <ImageButton android:layout_alignParentBottom="true"
            android:layout_weight="1" android:layout_width="0dip"
            android:layout_height="70dip" android:id="@+id/bookmarksButton"
            android:src="@drawable/bookmarksicon" />
        <ImageButton android:id="@+id/settingsButton"
            android:layout_weight="1" android:layout_height="70dip"
            android:src="@drawable/settingsicon" />
</LinearLayout>

That should work since the parent viewgroup (LinearLayout) has :

android:layout_width="fill_parent"

I hope this works.