I want to set opacity to my ImageButton, so when it is unselected, I can see the background a bit, and when I press on it – it becomes normal(no transparency).
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I want to set opacity to my ImageButton, so when it is unselected, I can see the background a bit, and when I press on it – it becomes normal(no transparency).
If the background you are using is itself an image, then you can’t simply “set” the transparency, it’s coming from the png image that is the resource for the background. I’d recommend creating 3 9-patch png images for the different stages of the button using transparency as necessary for whichever stage you like. There’s a description of how to use a different graphic and xml config file for your own background images in the docs on ImageButton
http://developer.android.com/reference/android/widget/ImageButton.html
If you used a solid color for the background, transparency can be achieved using a color code that has AARRGGBB as elements.
android:background=”#55FF0000″ would be a partially transparent red background.