Android Noise Effect

Question

Many of the new Android apps I've seen use a noise effect on their background, usually a gradient. Interestingly, some applications use radial gradients throughout their application with this effect, which will require a large amount of disk space for images. Android now has a GradientDrawable that can easily create gradients. I was thinking about creating a noise effect programmatically.

Has anyone else done this before, and if so, how did you do it? Did you just use the image or write your own custom overhead noise?

Answer 1

If you just want to build the Color Banding software package, you can do this by overriding the onAttachedToWindow() your activity as follows:

 @Override public void onAttachedToWindow() { super.onAttachedToWindow(); Window window = getWindow(); // Eliminates color banding window.setFormat(PixelFormat.RGBA_8888); } 

This worked well for my regular applications. I have not tested this with widdgets yet.