带有导航控制器的Swift，嵌入UI视图控制器，以允许后面按钮

Question

我试图在我的myServiceTypeSelector((控制器上获取一个返回按钮，以便在介绍myServiceTypeSelector((之后，我可以返回brpserviceselector((控制器，我该怎么做？我是否需要如何将其嵌入NAV控制器，如果是这样，我不使用故事板，以便以编程方式进行操作？

 import Foundation
 import UIKit
class BRPServiceSelector: UIViewController, UITextFieldDelegate {

override func viewDidLoad() {
    super.viewDidLoad()
    setupViews()

}

let businessAccountLabel: UILabel = {
    let label = UILabel()
    label.text = "Business Account"
    label.backgroundColor = .white
    label.translatesAutoresizingMaskIntoConstraints = false
    label.textAlignment = .center
    return label
}()



lazy var serviceSelectorButton: UIButton = {
    let button = UIButton(type: .system)
    button.backgroundColor = UIColor.black
    button.setTitle("Select A Service Type?", for: .normal)
    button.setTitleColor(UIColor.white, for: .normal)
    button.addTarget(self, action: #selector(presentServiceSelector), for: .touchUpInside)
    button.layer.cornerRadius = 3
    button.titleLabel?.font = UIFont.boldSystemFont(ofSize: 14)
    return button
}()

func presentServiceSelector(){
    let msts = MyServiceTypeSelector()
    let navController = UINavigationController(rootViewController: msts)
    self.present(navController, animated: true, completion: nil)



let containerView: UIView = {
    let v = UIView()
    v.translatesAutoresizingMaskIntoConstraints = false
    v.backgroundColor = .white
    return v
}()


let scrollView: UIScrollView = {
    let v = UIScrollView()
    v.translatesAutoresizingMaskIntoConstraints = false
    v.backgroundColor = .white
    return v
}()

func setupViews(){
    containerView.addSubview(serviceSelectorButton)
    serviceSelectorButton.anchor(top: containerView.topAnchor, left: nil, bottom: nil, right: nil, paddingTop: 50, paddingLeft: 0, paddingBottom: 0, paddingRight: 0, width: 220, height: 25)
    serviceSelectorButton.centerXAnchor.constraint(equalTo: containerView.centerXAnchor).isActive = true
    }
}

}

Answer 1

如果要在导航堆栈中的VC，则将其推到堆栈上而不是呈现。呈现通常用于模态窗口，通常没有导航栏。

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