应用程序未运行时处理远程通知时崩溃

Question

我收到远程通知,并根据通知类型更改导航控制器的视图控制器.

当应用程序在前台,或者应用程序在后台但未完全关闭时(从多任务栏),一切正常.

但是,当应用程序关闭并收到远程通知时,它会在打开时立即崩溃.我在设置ViewControllers的方式上做错了吗？

这是一些代码.

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary
*)launchOptions {
   // Push required screens into navigation controller

         UILocalNotification *remoteNotif = [launchOptions objectForKey: UIApplicationLaunchOptionsRemoteNotificationKey];

    //Accept push notification when app is not open
    if (remoteNotif) {      
        [self handleRemoteNotification:application userInfo:remoteNotif.userInfo];
        return YES;
    }

    [window addSubview:navigationController.view];
    [window makeKeyAndVisible];

    return YES;
}

-(void) handleRemoteNotification:(UIApplication *)application userInfo:(NSDictionary *)userInfo {
    application.applicationIconBadgeNumber = 0;

NSMutableArray *viewControllers = [NSMutableArray array];
    [viewControllers addObject:driverWaitViewController];
    [viewControllers addObject:newJobsViewController];

    [navigationController setViewControllers:viewControllers];
}

Answer 1

我解决了这个问题,它与视图控制器无关,正如我想的那样.

问题在于以下几行.我发送的是remoteNotif.userInfo而不是remoteNotif本身.此外,remoteNotif显然不是UILocalNotification类型.它是一个NSDictionary对象.

之前

UILocalNotification *remoteNotif = [launchOptions objectForKey: UIApplicationLaunchOptionsRemoteNotificationKey];

[self handleRemoteNotification:application userInfo:remoteNotif.userInfo];

应该

NSDictionary *remoteNotif = [launchOptions objectForKey: UIApplicationLaunchOptionsRemoteNotificationKey];

[self handleRemoteNotification:application userInfo:remoteNotif];

Answer 2

如果您关闭从xcode调试模式开始的应用程序,并且当应用程序以推送通知(已关闭的应用程序)启动时,如果您的手机连接到Mac(仍然是您的手机处于调试模式与xcode),它将崩溃.用拔掉的电话测试这个senario.