How can I make an image transparent on Android?

Question

I am using a linear layout and frame layout. In the linear layout I keep an image as background and in the frame layout I keep an imageView. In that imageView I give an image.

Answer 1

On newer versions of Android (post Android 4.2 (Jelly Bean) at least), the setAlpha(int value) method is depreciated. Instead, use the setAlpha(float value) method that takes a float between 0 and 1 where 0 is complete transparency and 1 is no transparency.