Android中的渐变

LinearGradient的用法

LinearGradient linearGradient;

linearGradient = new LinearGradient(0, 0, 0, getHeight(), 0xff808080, 0x33808080,CLAMP);

getPaint().setShader(linearGradient);
TextPaint paint = getPaint();
paint.setColor(getCurrentTextColor());
paint.drawableState = getDrawableState();