UITabBarController選擇項顯示導航欄

我正在使用UITabBarController和UINavigationController進行應用程序。視圖控制器圖如下所示：
UITabBarController選擇項顯示導航欄

TabBar Controller > Navigation Controller > View Controller

在我設置的導航欄隱藏的第一個視圖控制器。但是，當我點擊TabBar項目來顯示其他視圖控制器，然後單擊返回到第一個視圖控制器導航欄顯示。每當我在所有其他視圖控制器補充說：

-(void)viewWillAppear:(BOOL)animated { 
    [super viewWillAppear:animated]; 
    self.navigationController.navigationBarHidden = NO; 
} 

-(void)viewWillDisappear:(BOOL)animated { 
    [super viewWillDisappear:animated]; 
    self.navigationController.navigationBarHidden = YES; 
}

任何人都知道如何在第一視圖控制器我的導航欄設置爲總是隱藏？請幫忙。提前致謝。

來源

2017-03-21 Son Hoang

爲此，每個視圖控制器應該嵌入導航控制器中。之後，將所有導航控制器添加到標籤欄控制器。單導航控制器，它非常複雜。 – Pawan

檢查答案可能有所幫助http://stackoverflow.com/questions/42120482/navigation-bar-is-moving-up-to-statusbar – Joe

，如果你是在一些視圖控制器必須使用此方法：

[self.navigationController setNavigationBarHidden:YES animated:YES];

要隱藏的導航欄任何的viewController：

Objective-C的

- (void)viewWillAppear:(BOOL)animated { 
    [self.navigationController setNavigationBarHidden:YES animated:animated]; // Will hides Navigationbar 
    [super viewWillAppear:animated]; 
} 

- (void)viewWillDisappear:(BOOL)animated { 
    [self.navigationController setNavigationBarHidden:NO animated:animated]; // Will shows Navigationbar 
    [super viewWillDisappear:animated]; 
}

Swift

override func viewWillAppear(animated: Bool) { 
    self.navigationController?.setNavigationBarHidden(true, animated: animated) 
    super.viewWillAppear(animated) 
} 

override func viewWillDisappear(animated: Bool) { 
    self.navigationController?.setNavigationBarHidden(false, animated: animated) 
    super.viewWillDisappear(animated) 
}

來源

2017-03-21 12:08:51

謝謝，它的工作！ –

快樂編碼:) –

If you have multiple tabs at bottom who follows structure: 

Controller > Navigation Controller > View Controller 

Then to hide navigation bar in first view controller, you need to use following code 

// TO HIDE NAVIGATION BAR in first view controller 

-(void)viewWillAppear:(BOOL)animated { 
    [super viewWillAppear:animated]; 
    [self.navigationController setNavigationBarHidden:YES animated:animated]; 
} 

// TO SHOW NAVIGATION BAR in other view controllers 

If you want all other views should have navigation bar visible, you could use viewWillDisappear to set it to visible again. 


-(void)viewWillDisappear:(BOOL)animated { 
    [super viewWillDisappear:animated]; 
    [self.navigationController setNavigationBarHidden:NO animated:animated]; 
}

來源

2017-03-21 11:42:25

我試過@Lal Krishna答案，它的工作。但也感謝你的幫助。 –

歡迎@SonHoang –

UITabBarController選擇項顯示導航欄

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