在出现问题的controller中的viewdidload输入 self.extendedLayoutIncludesOpaqueBars = NO; self.edgesForExtendedLayout = UIRectEdgeBottom | UIRectEdgeLeft | UIRectEdgeRight;
在出现问题的controller中的viewdidload输入 self.extendedLayoutIncludesOpaqueBars = NO; self.edgesForExtendedLayout = UIRectEdgeBottom | UIRectEdgeLeft | UIRectEdgeRight;