Fix RippleDrawable alpha

Alpha was being double-applied by being
both handled in the shader and applied
by the Paint. So change the Paint to not
apply the alpha since the shader does it.

Fixes: 272375156
Test: looked at ripples in dark & light theme, verified no visual change
Change-Id: I6ca4d32a7a5735ce8ec418014d0318c29dd3c8bf

1 files changed, 2 insertions, 1 deletions

diff --git a/graphics/java/android/graphics/drawable/RippleDrawable.java b/graphics/java/android/graphics/drawable/RippleDrawable.java
index 4d0a05811dbf..641a2ae7b2c3 100644
--- a/graphics/java/android/graphics/drawable/RippleDrawable.java
+++ b/graphics/java/android/graphics/drawable/RippleDrawable.java
@@ -1013,7 +1013,8 @@ public class RippleDrawable extends LayerDrawable {
         }
         p.setShader(shader);
         p.setColorFilter(null);
-        p.setColor(color);
+        // Alpha is handled by the shader (and color is a no-op because there's a shader)
+        p.setColor(0xFF000000);
         return properties;
     }