trouble occurred When I pushViewController - ios

Question

Recently, a strange question occurred when I pushViewController to the next viewController.
Why I think it's a strange question? because it don't always appears(The probability of occurrence is low). when it appears, next viewController only shows its nav bar on screen, I still can see the rootViewController, but touching it without reaction(PopGesture is effective).Hoping for your help, thanks very much.
#pragram mark - method of pushing
- (void)clickToAccout {
if (![self countTotalSelectedNumber]) {
[SVProgressHUD showInfoWithStatus:#"没有被选择的商品"];
return;
}
CSCreatOrderViewController *creatOrderVC = [[CSCreatOrderViewController alloc] init];
creatOrderVC.totalPrice = [self countTotalPrice];
creatOrderVC.goods = [self selectedGoods];
[self.navigationController pushViewController:creatOrderVC animated:YES];
}
#pragma mark - chlid class of navgationController
- (void)viewDidLoad {
[super viewDidLoad];
self.navigationBar.tintColor = [UIColor whiteColor];
}
- (UIStatusBarStyle)preferredStatusBarStyle {
return _barStyle;
}
- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated{
if (self.viewControllers.count > 0) {
viewController.hidesBottomBarWhenPushed = YES;
[SVProgressHUD dismiss];
}
[super pushViewController:viewController animated:animated];
}
- (UIViewController *)popViewControllerAnimated:(BOOL)animated {
[SVProgressHUD dismiss];
return [super popViewControllerAnimated:animated];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - tabBarController
- (void)viewDidLoad {
[super viewDidLoad];
CSTabBar *tabBar = [[CSTabBar alloc] init];
[self setValue:tabBar forKey:#"tabBar"];
[self.tabBar setTintColor:[UIColor cz_colorWithHex:0Xec5151]];
[self addChildViewControllerWithTitle:#"首页" imageName:#"home" controllerName:#"CSHomeViewController"];
[self addChildViewControllerWithTitle:#"分类" imageName:#"classify" controllerName:#"CSClassifyViewController"];
[self addChildViewControllerWithTitle:#"查询" imageName:#"search" controllerName:#"CSSearchViewController"];
[self addChildViewControllerWithTitle:#"购物车" imageName:#"cart" controllerName:#"CSShoppingCartViewController"];
[self addChildViewControllerWithTitle:#"我的" imageName:#"mine" controllerName:#"CSMineViewController"];
self.selectedIndex = 0;
}
- (void)addChildViewControllerWithTitle:(NSString *)title imageName:(NSString *)imageName controllerName:(NSString *)controllerName {
Class cls = NSClassFromString(controllerName);
UIViewController *vc = [[cls alloc] init];
vc.title = title;
[vc.tabBarItem setImage:[UIImage imageNamed:[NSString stringWithFormat:#"%#",imageName]]];
[vc.tabBarItem setSelectedImage:[UIImage imageNamed:[NSString stringWithFormat:#"%#_selected",imageName]]];
vc.tabBarItem.title = title;
CSNavigationController *nav = [[CSNavigationController alloc] initWithRootViewController:vc];
[self addChildViewController:nav];
}
#pragma mark - base viewController
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = [UIColor whiteColor];
[self setupNavItem];
self.navigationController.interactivePopGestureRecognizer.enabled = YES;
self.navigationController.interactivePopGestureRecognizer.delegate = self;
_indciatorView = [[CSIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
UIWindow *keyW = [UIApplication sharedApplication].keyWindow;
[keyW addSubview:_indciatorView];
[_indciatorView mas_makeConstraints:^(MASConstraintMaker *make) {
make.center.equalTo(keyW);
}];
}
- (void)setupNavItem {
UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 40, 40)];
button.imageEdgeInsets = UIEdgeInsetsMake(9, 0, 9, 29);
[button setImage:[UIImage imageNamed:#"left"] forState:UIControlStateNormal];
[button addTarget:self action:#selector(clickToDismiss) forControlEvents:UIControlEventTouchUpInside];
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:button];
}
- (void)clickToDismiss {
[self.navigationController popViewControllerAnimated:YES];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}

Answer 1

I think you should change
[super pushViewController:viewController animated:animated];
to
[self.navigationController pushViewController:viewController animated:animated];
And the same when pop
[super popViewControllerAnimated:animated];
to
[self.navigationController popViewControllerAnimated:animated];

Answer 2

I clear the cache of Xcode, this case don't appear. Maybe I Imported a third lib ago caused this case. But like what I asked ,it don't always appears(The probability of occurrence is low). So, hoping it has been well.