最新iOS 11 & iPhone X适配方案传送门:10分钟适配 iOS11 & iPhoneX
发现问题
升级Xcode 9 + iOS 11后,发现原本没问题的collectionView和tableView像是中了风一样,头部刷新UI出现了错乱。
查阅发现 iOS11弃用了automaticallyAdjustsScrollViewInsets
属性,新增contentInsetAdjustmentBehavior
来替代它
关于 contentInsetAdjustmentBehavior
@available(iOS 11.0, *)
public enum UIScrollViewContentInsetAdjustmentBehavior : Int {
case automatic // Similar to .scrollableAxes, but will also adjust the top & bottom contentInset when the scroll view is owned by a view controller with automaticallyAdjustsScrollViewContentInset = YES inside a navigation controller, regardless of whether the scroll view is scrollable
case scrollableAxes // Edges for scrollable axes are adjusted (i.e., contentSize.width/height > frame.size.width/height or alwaysBounceHorizontal/Vertical = YES)
case never // contentInset is not adjusted
case always // contentInset is always adjusted by the scroll view's safeAreaInsets
}
UIScrollViewContentInsetAdjustmentBehavior 是一个枚举类型,值有以下几种:
-automatic
和scrollableAxes一样,scrollView会自动计算和适应顶部和底部的内边距并且在scrollView 不可滚动时,也会设置内边距.
-scrollableAxes
自动计算内边距.
-never
不计算内边距
-always
根据safeAreaInsets 计算内边距
很显然,我们这里要设置为 never
开始适配
OC 中
if (@available(iOS 11.0, *)){
_tableView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
_tableView.contentInset = UIEdgeInsetsMake(0, 0, 49, 0);//导航栏如果使用系统原生半透明的,top设置为64
_tableView.scrollIndicatorInsets = _tableView.contentInset;
}
swift 中
if #available(iOS 11.0, *) {
tableView.contentInsetAdjustmentBehavior = .never
tableView.contentInset = UIEdgeInsetsMake(0, 0, 49, 0)//导航栏如果使用系统原生半透明的,top设置为64
tableView.scrollIndicatorInsets = tableView.contentInset
}
凡是Scrollview 及 Scrollview子类都会有适配问题,整个工程使用了无数Scrollview的你心理阴影面积一定不小,别担心,其实可以一行代码解决问题:
// AppDelegate 进行全局设置
if (@available(iOS 11.0, *)){
[[UIScrollView appearance] setContentInsetAdjustmentBehavior:UIScrollViewContentInsetAdjustmentNever];
}
终于又回归原来的效果啦
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更多代码可参考
https://github.com/XuYang8026/UniversalProject
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self.tableView.estimatedSectionHeaderHeight = 0;
self.tableView.estimatedSectionFooterHeight = 0;
if (@available(iOS 11.0, *)){
_tableView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
_tableView.contentInset = UIEdgeInsetsMake(0, 0, 0, 0);//导航栏如果使用系统原生半透明的,top设置为64
_tableView.scrollIndicatorInsets = _tableView.contentInset;
}
// Masonry这样适配
[selfObj.tableView mas_makeConstraints:^(MASConstraintMaker *make) {
make.top.equalTo(view.mas_top).offset(64);
make.left.equalTo(view.mas_left).offset(0);
make.bottom.equalTo(view.mas_bottom).offset(0);
make.right.equalTo(view.mas_right).offset(0);
}];
MJ上下拉和闲置时,才能不会遮住tableView,reload的时候也不会跳页
谢谢
[[UIScrollView appearance] setContentInsetAdjustmentBehavior:UIScrollViewContentInsetAdjustmentNever];
}
完全没有用啊,该跑偏的还是跑偏啊?
感谢你发现问题并通知我~
if (@available(iOS 11.0, *)){
[[UIScrollView appearance] setContentInsetAdjustmentBehavior:UIScrollViewContentInsetAdjustmentNever];
}
同样操作,编译就不过,说是 iOS名称@available(iOS 11.0, *)
self.automaticallyAdjustsScrollViewInsets = NO; 在把新的属性设置为never
self.extendedLayoutIncludesOpaqueBars = YES在iOS11下会出现控制器无法加载的情况