给ImageView添加约束后,在裁圆角作为头像,在ios9无效bug

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通常方法在layoutSubviews,写这些,可以对付约束情况下的圆角,可是在ios9不起作用了,我用的是9.1测试版,解决办法是subclass,UIImageView,然后看后面代码

-(void)layoutSubviews

{

    [super layoutSubviews];

    [self layoutIfNeeded];

        _imageViewIcon.layer.cornerRadius = _imageViewIcon.width/2;

        _imageViewIcon.layer.masksToBounds = YES;

       _imageViewIcon.clipsToBounds = YES;

//    _imageViewIcon.layer.opaque = NO;

    [_imageViewIcon setClipsToBounds:YES];

}

subclass:

-(instancetype)init

{

    if (self = [super init]) {

    }

    return self;

}

-(void)layoutSubviews

{

    [super layoutSubviews];

    [self layoutIfNeeded];

    self.layer.masksToBounds = YES;

    self.layer.cornerRadius = self.width*0.5;

}

给ImageView添加约束后,在裁圆角作为头像,在ios9无效bug

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原文地址：http://www.cnblogs.com/daaiwusehng/p/4839337.html