关于IQKeyboardManager 在iOS11导航栏消失的

关于IQKeyboardManager 在iOS11导航栏消失的问题

问题： 升级到iOS11之后点击键盘时导航栏消失 如下图：

使用版本：pod 'IQKeyboardManager', '~> 5.0.6'

问题原因：IQKeyboardManager 在获取当前顶层控制器的时候获取到了tabBarController

解决办法：

找到IQUIView_Hierarchy.m 修改-(UIViewController *)topMostController方法 如下：即可

-(UIViewController *)topMostController{

UIViewController *rootController = [UIApplication sharedApplication].keyWindow.rootViewController;

if([rootController isKindOfClass:[UITabBarController class]]){
    UITabBarController *tabBarController = (UITabBarController *)rootController;
    UINavigationController *selectController = tabBarController.selectedViewController;
    UIViewController *viewController = (UIViewController *)selectController.visibleViewController;
    while (viewController.presentedViewController) {
        viewController = (UIViewController *)viewController.presentedViewController;
    }
    
    return viewController;
}else if ([rootController isKindOfClass:[UINavigationController class]]) {
    UINavigationController *selectController = (UINavigationController *)rootController;
    return selectController.visibleViewController;
}else if ([rootController isKindOfClass:[UIViewController class]]) {
        return rootController;
}
else{
    return nil;
}

}

转自:https://blog.csdn.net/zaiwei123456/article/details/78796990