使用輪播圖時(shí)發(fā)現(xiàn)在iOS11上有異常的跳動(dòng)，如下

跳動(dòng)實(shí)例

由于這個(gè)問題在iOS10之前，并沒有；可能是iOS11接口不同導(dǎo)致

當(dāng)設(shè)置collView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;

問題消失。

可以使用以下宏

//設(shè)置并適配iOS11的 contentInsetAdjustmentBehavior

#define kUIScrollView_ContentInsetAdjustmentBehavior_NO(scrollView) \

do { \

_Pragma("clang diagnostic push") \

_Pragma("clang diagnostic ignored \"-Warc-performSelector-leaks\"") \

if ([scrollView respondsToSelector:NSSelectorFromString(@"setContentInsetAdjustmentBehavior:")]) {\

[scrollView performSelector:NSSelectorFromString(@"setContentInsetAdjustmentBehavior:") withObject:@(2)];\

}; \

_Pragma("clang diagnostic pop") \

} while (0)