Usage of gradient in Android shape

<shape xmlns:android= "Http://schemas.android.com/apk/res/android" >


<gradient
android:angle= " the"
Android:endcolor= "@android: Color/black"
Android:centercolor= "@android: Color/holo_red_dark"
Android:startcolor= "@android: Color/white" >
</gradient>

</shape>

The key is the direction and starting position of the angle.

When the value of angle is 0 o'clock, White is on the left, red in the middle, black on the far right, as shown.

When the value of angle is 90, the white is at the bottom, the middle is red, the top is black, as shown

When the angle is 180, the white rightmost, the middle is red, the leftmost is black, as shown in

From the above case analysis, the direction of the angle gradient is starting from the left and the counter-clockwise gradient

Usage of gradient in Android shape