Question

I have three buttons, sharing same background image, i want to disable button one of them by using Alpha.

But when i am using the following code:

 button1.getBackground().setAlpha(45);

it is changing the background for all three buttons. but i need for only one.
can we done by using by Alpha()?? or some other things we can use so that button will looks in disabled mode.

Answer 1

You can set alpha using AlphaAnimation to any view

Sample Code

Button btn = (Button) findViewById(R.id.button);  
float alpha = 0.45f;
AlphaAnimation alphaUp = new AlphaAnimation(alpha, alpha);
alphaUp.setFillAfter(true);
btn.startAnimation(alphaUp);