rams rams - 2 months ago 20
Android Question

how to change the alpha value of imageview

In my app I want to change the ImageView like the following.
I want only to change the image on the body.

enter image description here

I have followed the following link to change the alpha values by using the code like that

imageView.setAlpha(255);


But it is not working.

How to Set Opacity (Alpha) for View in Android.
Please anybody suggest me how to do that.

Answer

Maybe you can try like this, I had troubles doing it normal way but with "animation" it was ok.

AlphaAnimation alpha = new AlphaAnimation(0.5F, 0.5F); // change values as you want
alpha.setDuration(0); // Make animation instant
alpha.setFillAfter(true); // Tell it to persist after the animation ends
// And then on your imageview
yourImageView.startAnimation(alpha);
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