How to set the background of the android application?

Question

I want to change the background of my App\'s Activity.

Now that is available in black I want to change that with some images or themes.

Answer 1

Personally, I would try to do it in xml like Sk9 suggests, but programmatically at runtime you can do

setBackgroundColor(int color)

or

setBackgroundResource(int resourceID)

Source: http://developer.android.com/reference/android/view/View.html