JoystickPuck.java 文件源码

@Override
public void draw(Canvas canvas) {

    RadialGradient gradient = new RadialGradient(
            this.position.x,
            this.position.y,
            this.radius,
            this.color_0,
            this.color_1,
            Shader.TileMode.MIRROR
    );

    this.paint.setShader(gradient);

    canvas.drawCircle(this.position.x, this.position.y, this.radius, this.paint);
}