PFAnalytics.trackAppOpenedWithLaunchOptions 中的错误（launchOptions，块：nil）

Question

我试图将 Parse 导入到我的 Swift 应用程序中，每次添加 //Register for Push Notifications 时都会收到一条错误消息，提示“PFAnalytics.Type”没有名为“trackAppOpenedWithLaunchOptions”的成员，我从字面上复制并粘贴了该位来自 Parse 网站的代码，不知道如何修复它

// Register for Push Notitications
    if application.applicationState != UIApplicationState.Background  {
        // Track an app open here if we launch with a push, unless
        // "content_available" was used to trigger a background push        (introduced in iOS 7).
        // In that case, we skip tracking here to avoid double   counting the app-open.

        let preBackgroundPush = !application.respondsToSelector("backgroundRefreshStatus")
        let oldPushHandlerOnly = !self.respondsToSelector("application:didReceiveRemoteNotification:fetchCompletionHandler:")
        var noPushPayload = false;
        if let options = launchOptions {
            noPushPayload = options[UIApplicationLaunchOptionsRemoteNotificationKey] != nil;
        }
        if (preBackgroundPush || oldPushHandlerOnly || noPushPayload) {
            PFAnalytics.trackAppOpenedWithLaunchOptions(launchOptions, block: nil)
        }
    }
    if application.respondsToSelector("registerUserNotificationSettings:") {
        let userNotificationTypes = UIUserNotificationType.Alert | UIUserNotificationType.Badge | UIUserNotificationType.Sound
        let settings = UIUserNotificationSettings(forTypes: userNotificationTypes, categories: nil)
        application.registerUserNotificationSettings(settings)
        application.registerForRemoteNotifications()
    } else {
        let types = UIRemoteNotificationType.Badge | UIRemoteNotificationType.Alert | UIRemoteNotificationType.Sound
        application.registerForRemoteNotificationTypes(types)
    }

Answer 1

由于您将 nil 传递给块，请替换此行：

PFAnalytics.trackAppOpenedWithLaunchOptions(launchOptions, block: nil)

用这个：

PFAnalytics.trackAppOpenedWithLaunchOptions(launchOptions)

如果您需要在后台执行，请使用此行：

PFAnalytics.trackAppOpenedWithLaunchOptionsInBackground(launchOptions, block: nil)