Code example for ComposeShader

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			paint = new Paint();
			luar = new LinearGradient(0.f, 0.f, 0.f, this.getMeasuredHeight(), 0xffffffff, 0xff000000, TileMode.CLAMP);
		} 
		int rgb = Color.HSVToColor(color);
		Shader dalam = new LinearGradient(0.f, 0.f, this.getMeasuredWidth(), 0.f, 0xffffffff, rgb, TileMode.CLAMP);
		ComposeShader shader = new ComposeShader(luar, dalam, PorterDuff.Mode.MULTIPLY);
		paint.setShader(shader);
		canvas.drawRect(0.f, 0.f, this.getMeasuredWidth(), this.getMeasuredHeight(), paint);
	} 
 
	void setHue(float hue) {
		color[0] = hue;
		invalidate();
	} 
}