当升级到iOS 11的时候,发现UIScrollView 有莫名其妙的偏移了 可是明明设置了

automaticallyAdjustsScrollViewInsets

这是因为iOS 11为UIScrollView 添加了新的属性contentInsetAdjustmentBehavior 这是一个枚举

swift

if #available(iOS 11.0, *) {

scrollView.contentInsetAdjustmentBehavior = .never

} else {

// Fallback on earlier versions

}

oc

if (@available(iOS 11.0, *)) {

Scrollview.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;    } else {        // Fallback on earlier versions    }