How to add (vertical) divider to a horizontal LinearLayout?

Question

I\'m trying to add a divider to a horizontal linear layout but am getting nowhere. The divider just doesn\'t show. I am a total newbie with Android.

This is my layou

Answer 1

Update: pre-Honeycomb using AppCompat

If you are using the AppCompat library v7 you may want to use the LinearLayoutCompat view. Using this approach you can use drawable dividers on Android 2.1, 2.2 and 2.3.

Example code:

drawable/divider.xml: (divider with some padding on the top and bottom)

Very important note: The LinearLayoutCompat view does not extend LinearLayout and therefor you should not use the android:showDividers or android:divider properties but the custom ones: app:showDividers and app:divider. In code you should also use the LinearLayoutCompat.LayoutParams not the LinearLayout.LayoutParams!