根據(jù)屏幕大小判斷是否是劉海屏系列手機(jī)

之所以要用到min函數(shù)和max函數(shù)，主要為了避免橫屏豎屏。

#define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
#define IS_IOS_11  ([[[UIDevice currentDevice] systemVersion] floatValue] >= 11.f)
#define IS_IPHONE_X (IS_IOS_11 && IS_IPHONE && (MIN([UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height) >= 375 && MAX([UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height) >= 812))