Question

我正在使用Swift构建一个接收推送通知的应用。我在JSON中发送自定义值。

我通过通知打开应用程序，所以我知道我必须在“didFinishLaunchingWithOptions”中执行此操作并从“launchOptions”中读取值。

如何阅读这些值并在我的应用中使用它们。

非常感谢。

Answer 1

当您的应用未启动时，这对我在SWIFT 2中有用。由于可选的绑定，代码不是很优雅。但它的确有效。

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {

    // if launched from a tap on a notification
    if let launchOptions = launchOptions {
        if let userInfo = launchOptions[UIApplicationLaunchOptionsRemoteNotificationKey] {
            if let action = userInfo["action"], id = userInfo["id"] {
                let rootViewController = self.window!.rootViewController as! ViewController
                let _ = setTimeout(5.0, block: { () -> Void in
                    rootViewController.openNotification(action as! String, id: id as! String)
                })

            }
        }
    }
    return true
}

Answer 2

在应用程序中：didReceiveRemoteNotification：fetchCompletionHandler，自定义数据传递给didReceiveRemoteNotification，这是一个NSDictionary。您要检索的详细信息可能位于userInfo的“aps”键上。

func application(application: UIApplication, didReceiveRemoteNotification userInfo: NSDictionary!)
{
    var notificationDetails: NSDictionary = userInfo.objectForKey("aps") as NSDictionary
}

当应用程序未启动时，您需要从应用程序获取它：didFinishedLaunchWithOptions，

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {

    if let launchOpts = launchOptions {
      var notificationDetails: NSDictionary = launchOpts.objectForKey(UIApplicationLaunchOptionsRemoteNotificationKey) as NSDictionary
    }

    return true
}

编辑：远程通知修复语法

Answer 3

这是针对 Swift 5 更新的 Oliver Zhang 回复。

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {

// if launched from a tap on a notification
     if let launchOptions = launchOptions {
        if let userInfo = launchOptions[UIApplication.LaunchOptionsKey.remoteNotification] {
            
        }
    }
    return true
}

如何使用swift从launchOptions获取自定义推送通知值？

3 个答案: