主要介绍了iOS渐变圆环旋转动画CAShapeLayerCAGradientLayer的相关资料,需要的朋友可以参考下

iOS渐变圆环旋转动画CAShapeLayer CAGradientLayer shape.gif demo.png - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. CALayer *layer = [CALayer layer]; layer.backgroundColor = [UIColor