RoundedBitmapDrawableUsage.java

Bitmap batmapBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.batman);

RoundedBitmapDrawable circularBitmapDrawable = // 
    RoundedBitmapDrawableFactory.create(getResources(), batmapBitmap);

circularBitmapDrawable.setCornerRadius(batmapBitmap.getWidth());

myImageView.setImageDrawable(circularBitmapDrawable);

System.out.prinln("MyActivity", "That's all folks");
    
/* 

    Hat tip to the amazing [Chris Banes](https://chris.banes.me/) 
    for pointing out [RoundedBitmapDrawable in the support libs](https://developer.android.com/reference/android/support/v4/graphics/drawable/RoundedBitmapDrawable.html)

    While this is now super simple to do, I would encourage you to 
   read Evelio's blog post http://evel.io/2013/07/21/rounded-avatars-in-android/ 
   as it'll help you gain a good understanding of drawable/bitmap manipulation */