图片阴影
Code
imageView.layer.shadowColor = [UIColor greenColor].CGColor;//阴影颜色
imageView.layer.shadowOffset = CGSizeMake(0, 0);//偏移距离
imageView.layer.shadowOpacity = 0.5;//不透明度
imageView.layer.shadowRadius = 10.0;//半径
圆形图片设置阴影（补充）
超过子图层的部分裁减掉,所以给圆角的图片设置阴影会被裁掉
view.layer.masksToBounds=YES
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设置图片圆角阴影
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.view.backgroundColor = [UIColor whiteColor];
UIView *view2 = [[UIView alloc] init];
view2.backgroundColor = [UIColor clearColor];
view2.frame = CGRectMake(90, 150, 200, 200);
view2.layer.shadowOpacity = 0.8;
view2.layer.shadowOffset = CGSizeMake(0, 3);
view2.layer.shadowRadius = 10;
UIView *view1 = [[UIView alloc] init];
view1.frame = CGRectMake(0, 0, 200, 200);
view1.layer.masksToBounds = YES;
view1.layer.cornerRadius = view1.frame.size.width/2;
view1.backgroundColor = [UIColor yellowColor];
view1.layer.contents = (id)[UIImage imageNamed:@"wenli.png"].CGImage;;
[self.view addSubview:view2];
[view2 addSubview:view1];
}
