Make gradient smoother - Android

Asked Apr 23 '18 at 22:52

Active Apr 24 '18 at 04:10

Viewed 70 times

Is it possible to discard fragmentation or at least make it smoother?

I read pixel color from running cursor and on low speed fragmentation is visible.

Here is my code:

final int[] mColors = new int[] {
    0xFFFF0000, 0xFFFF7F00, 0xFFFFFF00, 0xFF7FFF00, 0xFF00FF00, 0xFF00FF7F,
    0xFF00FFFF, 0xFF007FFF, 0xFF0000FF, 0xFF7F00FF, 0xFFFF00FF, 0xFFFF007F,
    0xFFFF0000
};
...
Shader shad = new SweepGradient(centerX, centerY, mColors, null);
...
Paint colorWheel = new Paint();
colorWheel.setAntiAlias(true);
colorWheel.setShader(shad);
colorWheel.setStyle(Paint.Style.STROKE);
colorWheel.setStrokeWidth(radius/10);
colorWheel.setDither(true);
...
Bitmap colorWheelBitmap = Bitmap.createBitmap(xNew, yNew, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(colorWheelBitmap);
canvas.drawCircle(centerX, centerY, radius, colorWheel);
...
@Override
protected void onDraw(Canvas canvas) {
    canvas.drawBitmap(colorWheelBitmap, 0, 0, null);
    ...
}

edited Apr 24 '18 at 04:10

asked Apr 23 '18 at 22:52

JuicyKitty

Enable dithering. Can't tell you how, don't know which API you use to draw. – Eugen Pechanec Apr 23 '18 at 22:55
Show the photo inline – Gibolt Apr 23 '18 at 23:11
@EugenPechanec, min API level 17, thanks, that helped a bit but didn't totally remove artifacts – JuicyKitty Apr 23 '18 at 23:14
@Gibolt, I can't, reputation is too low – JuicyKitty Apr 23 '18 at 23:15
Not Android API level, the API, the methods you use to draw the ring. Put the code in your question, you'll get more precise answers. – Eugen Pechanec Apr 24 '18 at 00:46
@EugenPechanec, damn, sorry. And thanks for reply btw – JuicyKitty Apr 24 '18 at 04:37

Make gradient smoother - Android

0 Answers0