How to programmatically change the background image of an Android Activity

Question

I have been able to change colour of an activity background (see this post). Now a requirement is to do the same with background image. I mean I can click a button, select an op

Answer 1

add this to your activity.xml:

add this to activity.java:

ImageView layout = (ImageView) findViewById(R.id.background);
            layout.setBackgroundResource(R.drawable.iso);