From 1cbfc3b00bd058e8bddd93cd5fc9b4e0b985420e Mon Sep 17 00:00:00 2001
From: Lucas Dupin <dupin@google.com>
Date: Wed, 26 May 2021 09:13:51 -0700
Subject: [PATCH] Enable dithering on RippleDrawable

Per UX request, given that gradients started to show some banding.

Test: manual
Fixes: 189281134
Change-Id: I8898f2463c6e07c390c07c242b6632dcbb9c3ef3
---
 graphics/java/android/graphics/drawable/RippleDrawable.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/graphics/java/android/graphics/drawable/RippleDrawable.java b/graphics/java/android/graphics/drawable/RippleDrawable.java
index be45f1813a0e..52db3389bd2c 100644
--- a/graphics/java/android/graphics/drawable/RippleDrawable.java
+++ b/graphics/java/android/graphics/drawable/RippleDrawable.java
@@ -1193,6 +1193,9 @@ public class RippleDrawable extends LayerDrawable {
             mRipplePaint = new Paint();
             mRipplePaint.setAntiAlias(true);
             mRipplePaint.setStyle(Paint.Style.FILL);
+            if (mState.mRippleStyle == STYLE_PATTERNED) {
+                mRipplePaint.setDither(true);
+            }
         }
 
         final float x = mHotspotBounds.exactCenterX();