Android--LinearGradient线性渐变
Paint paint = new Paint();LinearGradient gradient = new LinearGradient(0, 0, 100, 100, Color.RED, Color.YELLOW, Shader.TileMode.MIRROR);paint.setShader(gradient);canvas.drawRect(0, 0, 100, 100, paint);canvas.drawText("This is the shader", 100, 100, paint);