1、 创建工程,编写代码:
- (void)viewDidLoad {
[super viewDidLoad];
//读取一张图片
UIImage *img = [UIImage imageNamed:@"pic"];
//将该图片添加到图像视图
UIImageView *imgView = [[UIImageView alloc] initWithImage:img];
// CGRectrect = CGRectMake(60, 60, 200, 200);
imgView.frame = CGRectMake(60, 60, 200, 200);
//设置图像图层圆角半径大小
imgView.layer.cornerRadius = 100;
//设置图像视图层的遮罩盖属性,进行边界裁切
imgView.layer.masksToBounds = YES;
[self.view addSubview:imgView];}
运行效果: