iOS设置圆角的三种方式

#import "ViewController.h"
#import <AVFoundation/AVFoundation.h>
@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(100, 100, 200, 100)];
imageView.image = [UIImage imageNamed:@"1"];
UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:imageView.bounds byRoundingCorners:UIRectCornerBottomLeft | UIRectCornerTopLeft cornerRadii:CGSizeMake(25, 5)];
CAShapeLayer *maskLayer = [[CAShapeLayer alloc]init];
maskLayer.frame = imageView.bounds;
maskLayer.path = maskPath.CGPath;
imageView.layer.mask = maskLayer;
[self.view addSubview:imageView];
}