Swift 中的 Objective C 委托答案

【问题标题】：Objective C Delegate in SwiftSwift 中的 Objective C 委托
【发布时间】：2016-05-26 19:01:48
【问题描述】：

我刚刚在我的所有 swift 应用程序中实现了 Chartboost。

我奖励了插页式广告。所以我需要使用 Chartboost 给我的目标 C 函数来设置一个委托。我不知道该怎么做。这就是我通过 Swift 做 Admob 的方式。

   NSNotificationCenter.defaultCenter().addObserver(self, selector: "presentInterstitial:", name: "AdMobCall", object: nil) 

   func presentInterstitial(sender:UIButton!) {

    if let isReady = interstitial?.isReady {   // _ isReady
        interstitial?.presentFromRootViewController(self)

    }
}

 NSNotificationCenter.defaultCenter().postNotificationName("AdMobCall", object: nil)

但是给我的Objective C Chartboost函数是：

(void)didCompleteRewardedVideo:(CBLocation)位置 withReward:(int)reward;

而且我不明白如何使用此函数创建与 Admob 相同的委托。这似乎不可能。我让 Chartboost 奖励插页式广告正常工作。但是我无法设置代理来查看他们是否观看了视频。

【问题讨论】：

标签： objective-c swift delegates chartboost

【解决方案1】：

如果你想实现objective-c委托到swift。您需要执行以下步骤。

需要创建桥文件来导入你的 Objective-C 类

//
//  Use this file to import your target's public headers that you would like to expose to Swift.
//

#import "UVIViewController.h"

您需要在 swift viewcontroller 中扩展协议名称

import UIKit

class ViewController: UVIViewController, UVIDataRefreshProtocol {   // 2. Extend Protocal

    var secondController: DelegateViewController?

    @IBOutlet var delegateRefresh: UILabel!

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

        self.registerForBasicDataRefreshNotification();             //  3. Register the protocol notification
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    // Register the protocol notification with same name. Example : DataRefreshNotification
    override func registerForBasicDataRefreshNotification() {

        self.validateBasicDataRefreshNotification();
        NSNotificationCenter.defaultCenter().addObserver(        // 4. Register the protocol notification with same name.
            self,
            selector: "basicDataDidRefresh",
            name: DataRefreshNotification,
            object: nil)

    }

    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        delegateRefresh.text = "";
        if segue.identifier == "view_to_delegate" {
            secondController = segue.destinationViewController as? DelegateViewController
        }
    }

    // Basic Data Did Refresh Notification
    func basicDataDidRefresh() {                            //  4. Event will be triggered while calling the protocol post notification. called with same name
            NSLog("\n Basic data is refreshed")
            delegateRefresh.text = "Basic data is refreshed";
    }

}

    5. NSNotificationCenter.defaultCenter().postNotificationName(DataRefreshNotification, object: nil)  // Call the notification.

示例项目：https://github.com/vigneshuvi/Objective-C-Delegate-Swift

【讨论】：