iPhone X系列适配

- (BOOL)isiPhoneXSeries
{
    if (UIDevice.currentDevice.userInterfaceIdiom != UIUserInterfaceIdiomPhone) {
        return NO;
    }

    if (@available(iOS 11.0, *)) {
        UIWindow *mainWindow = [[[UIApplication sharedApplication] delegate] window];
        if (mainWindow.safeAreaInsets.bottom > 0.0) {
            return YES;
        }
    }

    return NO;
}

鉴于iPhone X/XS/XR/XS Max底部都会有安全距离，所以可以利用 safeAreaInsets.bottom > 0.0来判断是否是iPhone X/XS/XR/XS Max。

safeAreaInsets支持iOS11及以后。