How to put this effect on an imageview in android

Question

I'm using Glide for loading an image by an url and I want to reproduce the same effect on my imageview. How can I put this effect on an imageview like this one?

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Answer 1

imageView.setImageAlpha（）应该可以工作。该方法的取值范围是0到255，其中0是完全透明的，而255是完全不透明的。

Answer 2

Also, you can set the opacity for your ImageView in your XML file with alpha attribute:

android:alpha="0.0" fully invisible

android:alpha="0.5" half invisible/half visible

android:alpha="1.0" fully visible

you can also set numbers like 0.56565 for better precision of the desired opacity.