ios - 如何在 swift iOS 中创建一个通用的弹出 View Controller

Question

如何创建可由具有不同数据的多个 View Controller 调用的通用弹出 View Controller 。我创建了一个带有标签和按钮的 popupviewcontroller 类。根据来自不同 View Controller 的调用，标签和按钮将具有不同的文本。简而言之，创建可由多个 View Controller 使用的通用弹出 View 的正确可行方法是什么

class CustomPopUpViewController: UIViewController{


@IBOutlet weak var vWCustomSubVw: UIView!
@IBOutlet weak var lblHeadingText: UILabel!
@IBOutlet weak var lblDescription: UILabel!
@IBOutlet weak var btnCustom: UIButton!

var strLblHeadingText = String()  // string for heading label
var strLblDescription = String() // string for description label
var strBtnCustom = String()// string for custom button

override func viewDidLoad() {
    super.viewDidLoad()
    self.view.backgroundColor = UIColor.black.withAlphaComponent(0.2)

    self.showAnimate()



    lblHeadingText.text = strLblHeadingText
    lblDescription.text = strLblDescription
    btnCustom .setTitle(strBtnCustom, for: UIControlState.normal)

}

 func showAnimate()
{
    self.view.transform = CGAffineTransform(scaleX: 1.3, y: 1.3)
    self.view.alpha = 0.0;
    UIView.animate(withDuration: 0.25, animations: {
        self.view.alpha = 1.0
        self.view.transform = CGAffineTransform(scaleX: 1.0, y: 1.0)
    });
}


func removeAnimate()
{
    UIView.animate(withDuration: 0.25, animations: {
        self.view.transform = CGAffineTransform(scaleX: 1.3, y: 1.3)
        self.view.alpha = 0.0;
    }, completion:{(finished : Bool)  in
        if (finished)
        {
            self.view.removeFromSuperview()
        }
    });
}


}

我正在从另一个 View Controller 调用它:-

 func btnInfoTapped(){

    let customPopUpVC = UIStoryboard(name: "Course", bundle: nil).instantiateViewController(withIdentifier: "CustomPopUpViewController") as! CustomPopUpViewController
    self.addChildViewController(customPopUpVC)
    customPopUpVC.view.frame = self.view.frame
    self.view.addSubview(customPopUpVC.view)
    customPopUpVC.didMove(toParentViewController: self)



}

所以我想让它变得通用，说它是一个全局方法或者从不同的 Viewcontroller 调用同一个类的东西

Answer 1

您可以创建一个通用方法来呈现警报 Controller

import Foundation
import UIKit

class AlertHelper: NSObject {

//Alert with title and dismiss button only
static func showAlertWithTitle(_ conroller: UIViewController, title: String, message: String = "" ,dismissButtonTitle: String, dismissAction:@escaping ()->Void) {

    let validationLinkAlert = UIAlertController(title:title, message:message, preferredStyle: .alert)
    let dismissAction = UIAlertAction(title: dismissButtonTitle, style: .default) { (action) -> Void in
        dismissAction()
    }

    validationLinkAlert.addAction(dismissAction)
    conroller.present(validationLinkAlert, animated: true, completion: nil)
}

//Alert with title with message
static func showALertWithTitleAndMessage(_ controller: UIViewController, title: String, message: String, dismissButtonTitle: String, okButtonTitle: String, dismissAction:@escaping ()-> Void, okAction:@escaping ()-> Void) {

    let validationLinkAlert = UIAlertController(title:title, message:message, preferredStyle: .alert)

    let dismissAction = UIAlertAction(title: dismissButtonTitle, style: UIAlertActionStyle.default) { (action) in
        dismissAction()
    }

    let okAction = UIAlertAction(title: okButtonTitle, style: UIAlertActionStyle.default) { (action) in
        okAction()
    }

    validationLinkAlert.addAction(dismissAction)
    validationLinkAlert.addAction(okAction)

    controller.present(validationLinkAlert, animated: true, completion: nil)

}
}

从你的 View Controller 调用这个函数

AlertHelper.showAlertWithTitle(self, title: message, dismissButtonTitle: "OK") { () -> Void in

    }