Segue公司回來導航欄

你好，我是在視圖控制器B帶其導航欄，按鈕，在視圖控制器乙按去的ViewController C（我不想在導航欄的viewController C）Segue公司回來導航欄

let vc = self.storyboard?.instantiateViewController(withIdentifier: "viewC") as! ViewcontrollerC 
    vc.passAction = "saveedit" 
    vc.passName = passName 
    self.present(vc, animated: true, completion: nil)

當我點擊保存按鈕在ViewcontrollerC我應該回去ViewcontrollerB與ViewcontrollerB導航欄

let vc = self.storyboard?.instantiateViewController(withIdentifier: "viewB") as! ViewcontrollerB 
      vc.passName = "\(firstNameTxt.text!)\(" ")\(lastNameTxt.text!)" 
      self.present(vc, animated: false, completion: nil)

這裏的問題是，當我回到ViewcontrollerB我沒有看到導航欄那裏。

EDITED

class ViewcontrollerB : UpdateDataDelegate { 

    override func viewWillAppear(_ animated: Bool) { 
     super.viewWillAppear(animated); 
     self.navigationController?.isNavigationBarHidden = false 
    } 


@IBAction func click_edit(_ sender: Any) { 

    let vc = self.storyboard?.instantiateViewController(withIdentifier: "patientPersonalData") as! patientPersonalDataVC 
    vc.passName = passName 
    vc.passAction = "saveedit" 

    self.navigationController?.pushViewController(vc, animated: true) 

    } 

func loadData() { 

} 
}

// ViewcontrollerC

protocol UpdateDataDelegate { 
    func loadData() 
} 
class Viewcontroller C { 
var delegate: UpdateDataDelegate? 

override func viewWillAppear(_ animated: Bool) { 
     super.viewWillAppear(animated) 
     self.navigationController?.isNavigationBarHidden = true 
    } 

fun click_save() { 
self.navigationController?.popViewController(animated: true) 
self.delegate?.loadData() 
}

}

來源

2017-08-10 swiftuser123

你嵌入您的視圖 - 控制與導航控制器 –

@ Anbu.Karthik是的，在故事板與導航控制器 – swiftuser123

-1

試試這個..取消隱藏的導航欄在viewControllerC的viewWillAppear中，並把它藏在viewControllerB的viewWillAppear中。

//ViewController C 
override func viewWillAppear(_ animated: Bool) { 
super.viewWillAppear(animated) 
self.navigationController?.isNavigationBarHidden = true 
} 

//ViewController B 
override func viewWillAppear(_ animated: Bool) { 
super.viewWillAppear(animated); 
self.navigationController?.isNavigationBarHidden = false 
}

試試這個，然後

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

//ViewController B 
override func viewWillAppear(_ animated: Bool) { 
super.viewWillAppear(animated); 
    self.navigationController?.setNavigationBarHidden(false, animated: true) 
}

來源

2017-08-10 10:14:49

連接我想這並沒有爲我工作 – swiftuser123

嘗試編輯答案 –

看來你創建一個新的ViewcontrollerB。試試這個回到ViewcontrollerB。

self.dismiss(animated: true, completion: nil)

來源

2017-08-10 10:20:06 ZHZ

你爲什麼不乾脆就按Save按鈕辭退ViewcontrollerC？

在ViewcontrollerC：

var closure: ((String)->())? //Set this closure when you present ViewcontrollerC from ViewcontrollerB 

func save() 
{ 
    self.dismiss(animated: true) {[weak self] in 
     self?.closure?("Your_Data") 
    } 
}

這將你搬回ViewControllerB其中navigation bar已經存在。

您不需要在任何地方隱藏/顯示navigation bar，既不會顯示ViewControllerC，也不需要關閉它。

來源

2017-08-10 10:20:09 PGDev

但在這裏你不能將數據發送到前一個控制器。我想將我在ViewcontrollerC中添加的新數據發送給ViewcontrollerB。 – swiftuser123

您可以爲此使用閉包，並在完成解僱方法時調用閉包。 – PGDev

我編輯了答案。看一看。 – PGDev

嘗試使用導航控制器

let vc = self.storyboard!.instantiateViewController(withIdentifier: "viewC") as! ViewcontrollerC 
let navController = UINavigationController(rootViewController: vc) 
self.present(navController, animated:true, completion: nil)

出示它，並添加下面一行在你ViewcontrollerC的viewWillAppear中的方法。

override func viewWillAppear(_ animated: Bool) { 
super.viewWillAppear(animated) 
self.navigationController?.isNavigationBarHidden = true 
}

當離開ViewcontrollerC的viewWillDisAppear方法。

override func viewWillDisAppear(_ animated: Bool) { 
super.viewWillDisAppear(animated) 
self.navigationController?.isNavigationBarHidden = false 
}

來源

2017-08-10 10:24:34 Ved

Segue公司回來導航欄

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