一个方法判断iphone X系列

+(BOOL)isIPhoneXseries {

    if (UI_USER_INTERFACE_IDIOM() != UIUserInterfaceIdiomPhone) {

        return NO;

    }

    if (![UIScreen instancesRespondToSelector:@selector(currentMode)]) {

        return NO;

    }

    return CGSizeEqualToSize([UIScreen mainScreen].bounds.size, CGSizeMake(414, 896)) || CGSizeEqualToSize([UIScreen mainScreen].bounds.size, CGSizeMake(375, 812));

}