Fixed a bug where the media notification image was wrong

In RTL the gradient was being applied the wrong way.

Test: switch to RTL, play music
Change-Id: Ie1686719d56436712fd0e6c99ba2723ba53d0025
Fixes: 37996998

packages/SystemUI/src/com/android/systemui/statusbar/notification/ImageGradientColorizer.java

@@ -34,7 +34,7 @@ import android.graphics.drawable.Drawable;
  * A utility class to colorize bitmaps with a color gradient and a special blending mode
  */
 public class ImageGradientColorizer {
-    public Bitmap colorize(Drawable drawable, int backgroundColor) {
+    public Bitmap colorize(Drawable drawable, int backgroundColor, boolean isRtl) {
         int width = drawable.getIntrinsicWidth();
         int height = drawable.getIntrinsicHeight();
         int size = Math.min(width, height);
@@ -79,6 +79,12 @@ public class ImageGradientColorizer {
         Canvas fadeInCanvas = new Canvas(fadeIn);
         drawable.clearColorFilter();
         drawable.draw(fadeInCanvas);
+
+        if (isRtl) {
+            // Let's flip the gradient
+            fadeInCanvas.translate(size, 0);
+            fadeInCanvas.scale(-1, 1);
+        }
         paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
         fadeInCanvas.drawPaint(paint);
 

packages/SystemUI/src/com/android/systemui/statusbar/notification/MediaNotificationProcessor.java

@@ -25,6 +25,7 @@ import android.graphics.drawable.Drawable;
 import android.graphics.drawable.Icon;
 import android.support.v4.graphics.ColorUtils;
 import android.support.v7.graphics.Palette;
+import android.util.LayoutDirection;
 
 import com.android.systemui.R;
 
@@ -187,7 +188,9 @@ public class MediaNotificationProcessor {
                         : R.color.notification_material_background_color;
                 backgroundColor = mContext.getColor(id);
             }
-            Bitmap colorized = mColorizer.colorize(drawable, backgroundColor);
+            Bitmap colorized = mColorizer.colorize(drawable, backgroundColor,
+                    mContext.getResources().getConfiguration().getLayoutDirection() ==
+                            LayoutDirection.RTL);
             builder.setLargeIcon(Icon.createWithBitmap(colorized));
         }
     }