带有分支深度链接的应用程序在通过深度链接重新打开时显示UIAlertController警告

Question

我已经成功实现了与Branck iOS SDK的深度链接。

但是重新打开应用程序时在控制台中显示以下警告:

试图加载视图控制器的视图不允许取消分配，并且可能导致未定义的行为(UIAlertController: 0 x16b00800)

我的AppDelegate与基本代码实现是:

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    var window: UIWindow?
    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool
    {
        // Branch initialization   
        let branch: Branch = Branch.getInstance()
        branch.initSessionWithLaunchOptions(launchOptions, andRegisterDeepLinkHandler:
            { optParams, error in
            if error == nil, let params = optParams
            {
                print("Branch params: ", params.description)
            }
        })
        return true
    }
    // Respond to URI scheme links
    func application(application: UIApplication, openURL url: NSURL, sourceApplication: String?, annotation: AnyObject) -> Bool
    {
        print("Branch url URI: ", url)
        // pass the url to the handle deep link call
        Branch.getInstance().handleDeepLink(url)
        return true
    }
    // Respond to Universal Links
    func application(application: UIApplication, continueUserActivity userActivity: NSUserActivity, restorationHandler: ([AnyObject]?) -> Void) -> Bool
    {
        print("Branch universal link ")
        Branch.getInstance().continueUserActivity(userActivity)
        return true
    }
}

如何删除上述警告?

Answer 1

要消除警告AppDelegate必须另外实现application:willContinueUserActivityWithType函数，该函数将返回true

func application(application: UIApplication, willContinueUserActivityWithType userActivityType: String) -> Bool
{
    return true
}