iOS 适配iPhone X的方法
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2024-02-11 19:34:58
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co...
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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