android make View transparent to input

Question

I have a RelativeLayout with a thin red frame background and a (mostly transparent) ImageView as a child. Their sizes are equal:

On screen it looks as follows:

When user presses this compound object, I want to change frame's color to green:

I set RelativeLayout 's background to a StateListDrawable that switches red to green. It works fine until I add a child ImageView (representing blue letter "A") to the RelativeLayout . This ImageView intercepts input touches and therefeore blocks input. I tried to call

imageView.setEnabled(false);
imageView.setFocusable(false);
relativeLayout.setDescendantFocusability(ViewGroup.FOCUS_BEFORE_DESCENDANTS);

but nothing helped.

How do I make an ImageView "transparent" to input events?

Answer 1

Set an OnTouchListener to the ImageView that returns false in any case. This way the touch event wont be consumed and gets passed on to the next Listener.