android.support.v4.widget.CircleImageView does not work

Question

when I try to use : android.support.v4.widget.CircleImageView

Answer 1

The CircleImageView is a private class of the support library and cannot be used. But it is easy to create this effect yourself without the CircleImageView. You just need to define a drawable with a transparent circle in the middle similar to this:

After that just combine the image you want to display in the ImageView with the drawable from above in a LayerList like this:

If the image you want to display is dynamic then you can create the LayerList programmatically!