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在自定义的view中使用了[self layoutIfNeeded]方法,在iOS8\9上都没有错误,但是在iOS7上出现了页面错乱,解决方案就是在自定义的view里面添加如下代码:
+ (void)load { Method existing = class_getInstanceMethod(self, @selector(layoutSubviews)); Method new = class_getInstanceMethod(self, @selector(_autolayout_replacementLayoutSubviews)); method_exchangeImplementations(existing, new); } - (void)_autolayout_replacementLayoutSubviews { [super layoutSubviews]; [self _autolayout_replacementLayoutSubviews]; // not recursive due to method swizzling [super layoutSubviews]; }
出现Assertion failure in -[***** layoutSublayersOfLayer:]
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原文地址:http://www.cnblogs.com/ziyi--caolu/p/5649921.html