这篇文章将为大家详细讲解有关iOS如何适配iPhone X,小编觉得挺实用的,因此分享给大家做个参考,希望大家阅读完这篇文章后可以有所收获。
因为iPhone X奇特的刘海存在,iOS11之后系统深化了“安全区域”概念,安全区域就是从屏幕上切除最大的矩形之外的区域。
iOS11后UIScrollView新增contentInsetAdjustmentBehavior属性,默认配置UIScrollViewContentInsetAdjustmentAutomatic,效果上就是没使用安全区域。若针对具体页面需要使用安全区域,可以查看API中新增加的那些属性。
/** * 适配iPhone X的安全区域 * isUse = 1 表示使用安全区域 * isUse = 0 表示不使用安全区域 */ + (void)adaptationSafeAreaWith:(UIScrollView *)sv useArea:(NSInteger)isUse { if ([[sv class] isSubclassOfClass:[UIWebView class]]) { UIWebView *webView = (UIWebView *)sv; for (UIView *aView in [webView subviews]) { if ([aView isKindOfClass:[UIScrollView class]]) { sv = (UIScrollView *)aView; break; } } } #ifdef __IPHONE_11_0 if ([sv respondsToSelector:@selector(setContentInsetAdjustmentBehavior:)]) { if (isUse) { if (@available(iOS 11.0, *)) { sv.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever; if ([[sv class] isSubclassOfClass:[UITableView class]]) { UITableView *tv = (UITableView *)sv; [tv setInsetsContentViewsToSafeArea:NO]; } } else { // Fallback on earlier versions } } else { if (@available(iOS 11.0, *)) { sv.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentAlways; } else { // Fallback on earlier versions } } } #endif }
typedef NS_ENUM(NSInteger, UIScrollViewContentInsetAdjustmentBehavior) { UIScrollViewContentInsetAdjustmentAutomatic, // Similar to .scrollableAxes, but for backward compatibility will also adjust the top & bottom contentInset when the scroll view is owned by a view controller with automaticallyAdjustsScrollViewInsets = YES inside a navigation controller, regardless of whether the scroll view is scrollable UIScrollViewContentInsetAdjustmentScrollableAxes, // Edges for scrollable axes are adjusted (i.e., contentSize.width/height > frame.size.width/height or alwaysBounceHorizontal/Vertical = YES) UIScrollViewContentInsetAdjustmentNever, // contentInset is not adjusted UIScrollViewContentInsetAdjustmentAlways, // contentInset is always adjusted by the scroll view's safeAreaInsets } API_AVAILABLE(ios(11.0),tvos(11.0));
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