Circular gradient in android

Question

I'm trying to make a gradient that emits from the middle of the screen in white, and turns to black as it moves toward the edges of the screen.

As I make a "normal" gradient like this, I have been experimenting with different shapes:

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <gradient android:startColor="#E9E9E9" android:endColor="#D4D4D4"
        android:angle="270"/>
</shape>

When using the "oval"-shape I at least got a round shape, but there were no gradient effect. How can I achieve this?'

Answer 1

You can get a circular gradient using android:type="radial":

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <gradient android:type="radial" android:gradientRadius="250dp"
        android:startColor="#E9E9E9" android:endColor="#D4D4D4" />
</shape>