从Tabbar控制器使用后退按钮打开单独的ViewController

Question

我有一个Tabbar控制器，在该控制器中，我将显示5个以上的viewcontroller。一切都按预期进行。

但是现在我有一个具有UiTableView的ViewController，在单元格上单击“我想打开一个DetailView Controller”。

该DetailViewController将在Navigation View Controller中具有标题，并使用backbutton再次返回到列表。

请帮助我如何使用Swift进行操作？

Answer 1

import UIKit

class ViewController: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

@IBAction func moveToNexScreen(_ sender: Any) {
    let storyboard = UIStoryboard(name: "Main", bundle: nil)
    let nextVc = storyboard.instantiateViewController(withIdentifier: "NextViewController") as! NextViewController
    let navigationVc = UINavigationController(rootViewController: nextVc)
    present(navigationVc, animated: false, completion: nil)
}
}

class NextViewController: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()
    self.navigationItem.leftBarButtonItem = UIBarButtonItem(barButtonSystemItem: .cancel, target: self, action: #selector(self.closeBackButtonPressed))        
}

@objc func closeBackButtonPressed(){
    self.dismiss(animated: false, completion: nil)
}
}

将您的detailView放在UINavigationController(rootViewController: detailVc)内，然后您可以显示它并具有后退按钮，可以以编程方式在detailsView上添加一个条形按钮项

Answer 2

您要显示detailVC的vc应该嵌入在navigationController内，然后使用push / pop来管理show / hide

[[4 0 3 1 2]  
[3 0 4 2 1]
[4 3 1 2 0]]

Answer 3

使用-

#import <DetailViewController.h>

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{

    NSIndexPath *indexPath = [_tableView indexPathForCell:sender];

    DetailViewController *details = (DetailViewController *)segue.destinationViewController;

    details.dictionary = _json[indexPath.row]; // to pass data

}

在情节提要中-

Select Cell and drag a segue to Details view controller

Answer 4

也许此情节提要插图会为您提供帮助。显示所需的vc很干净。