Alpha-gradient on Android

Question

I need to create an alpha-gradient on the edge of the ImageView. Preferably using only XML.

Image for example

Answer 1

For transparency :

android:startColor="@null"

Or you can use a 8-digit hex color like that :

android:startColor="#FF000000"

The first two FF are for the alpha of the color, 00 is fully transparent and FF opaque