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Commit ca585d29 authored by Selim Cinek's avatar Selim Cinek
Browse files

Improved the gradient drawing of the media notification 

Previously we were drawing with a color on top of the
image instead of fading it out. This could lead to
visible artefacts in the background.
We're now fading out the alpha in a similar manner instead.

Test: runtest systemui
Change-Id: Ie6af7751a734b8fa44279eba970e7ca5ba67a4c0
Fixes: 37950482
parent 919076aa

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

+10 −7
Original line number Diff line number Diff line
@@ -70,8 +70,6 @@ public class ImageGradientColorizer { 
                0, 0, 0, 1, 0,

        });



        drawable.setColorFilter(new ColorMatrixColorFilter(m));

        drawable.draw(canvas);

        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);

        LinearGradient linearGradient =  new LinearGradient(0, 0, size, 0,

                new int[] {0, Color.argb(0.5f, 1, 1, 1), Color.BLACK},
@@ -83,14 +81,19 @@ public class ImageGradientColorizer { 
        drawable.draw(fadeInCanvas);

        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));

        fadeInCanvas.drawPaint(paint);

        canvas.drawBitmap(fadeIn, 0, 0, null);



        Paint coloredPaint = new Paint(Paint.ANTI_ALIAS_FLAG);

        coloredPaint.setColorFilter(new ColorMatrixColorFilter(m));

        coloredPaint.setAlpha((int) (0.5f * 255));

        canvas.drawBitmap(fadeIn, 0, 0, coloredPaint);



        linearGradient =  new LinearGradient(0, 0, size, 0,

                new int[] {backgroundColor, Color.argb(0.5f, tr, tg, tb), 0},

                new int[] {0, Color.argb(0.5f, 1, 1, 1), Color.BLACK},

                new float[] {0.0f, 0.6f, 1.0f}, Shader.TileMode.CLAMP);

        paint.setShader(linearGradient);

        paint.setXfermode(null);

        canvas.drawPaint(paint);

        fadeInCanvas.drawPaint(paint);

        canvas.drawBitmap(fadeIn, 0, 0, null);



        return newBitmap;

    }

}