如何在应用程序关闭时打开推送通知时推送新视图？

Question

所以我想做的是，当您在应用程序打开时单击接收推送通知的视图时，它会显示呈现的视图推送一个新的控制器，其中包含有关通知的详细信息。我正在使用 UITabBarController 和 UINavigationControllers。任何帮助将不胜感激，我尝试过搜索，但似乎找不到任何能指引我正确方向的东西。当前代码如下：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
[[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeSound)];

[application setStatusBarStyle:UIStatusBarStyleBlackOpaque];

tabBarController = [[UITabBarController alloc] init];

controller = [[controller alloc] init];
UINavigationController *controller1 = [[[UINavigationController alloc] initWithRootViewController:controller] autorelease];
controller1.tabBarItem.image = [UIImage imageNamed:@"icon_news.png"];
[controller setTitle:@"View"];
[controller release];

controller = [[controller alloc] init];
UINavigationController *controller2 = [[[UINavigationController alloc] initWithRootViewController:controller] autorelease];
controller2.tabBarItem.image = [UIImage imageNamed:@"icon_news.png"];
[controller setTitle:@"View"];
[controller release];

controller = [[controller alloc] init];
UINavigationController *controller3 = [[[UINavigationController alloc] initWithRootViewController:controller3] autorelease];
controller3.tabBarItem.image = [UIImage imageNamed:@"icon_news.png"];
[controller setTitle:@"View"];
[controller release];

controller = [[controller alloc] init];
UINavigationController *controller4 = [[[UINavigationController alloc] initWithRootViewController:controller] autorelease];
controller4.tabBarItem.image = [UIImage imageNamed:@"icon_news.png"];
[controller setTitle:@"View"];
[controller release];

controller = [[controller alloc] init];
UINavigationController *controller5 = [[[UINavigationController alloc] initWithRootViewController:controller] autorelease];
controller5.tabBarItem.image = [UIImage imageNamed:@"icon_news.png"];
[controller setTitle:@"View"];
[controller release];

tabBarController.viewControllers = [NSArray arrayWithObjects:controller1, controller2, controller3, controller4, controller5, nil];

[window addSubview:tabBarController.view];

[window makeKeyAndVisible];

launchDefault = YES;
//[self performSelector:@selector(handlePostLaunch) withObject:nil afterDelay:0];

// Push Notification info

NSDictionary *apns = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];

NSString *result =  [[[apns valueForKey:@"aps"] valueForKey:@"alert"] valueForKey:@"loc-args"];

NSString *playerID = [NSString stringWithFormat:@"%@", result];

playerID = [[playerID componentsSeparatedByCharactersInSet:[NSCharacterSet newlineCharacterSet]] componentsJoinedByString:@""];

playerID = [playerID stringByReplacingOccurrencesOfString:@"  " withString:@""];

playerID = [playerID stringByReplacingOccurrencesOfString:@"(" withString:@""];

playerID = [playerID stringByReplacingOccurrencesOfString:@")" withString:@""];

NSLog(@"Player ID: %@", playerID);

if (![playerID isEqualToString:@"null"]) {
    if (!detailViewController) {
        detailViewController = [[PlayerDetailViewController alloc] init];
    }

    NSManagedObjectContext *moc = [[AppController sharedAppController] managedObjectContext];

    NSFetchRequest *req = [[NSFetchRequest alloc] init];

    NSEntityDescription *entity = [NSEntityDescription entityForName:@"Players"
                                              inManagedObjectContext:moc];
    [req setEntity:entity];

    NSPredicate *pre = [NSPredicate predicateWithFormat:@"playerID=%@", playerID];
    [req setPredicate:pre];

    NSError *error;
    NSArray *list = [moc executeFetchRequest:req error:&error];

    [req release];

    Players *player = [list lastObject];

    [detailViewController setPlayer:player];

    //Want to Push view here

    [detailViewController release];

    detailViewController = nil;
}

return YES;

}

Answer 1

如果应用程序是通过通知启动的，那么它将出现在应用程序委托的 application:didFinishLaunchingWithOptions: launchOptions 字典中的 UIApplicationLaunchOptionsRemoteNotificationKey 键下，其中包含通知的所有信息（我相信 JSON 已转换为 NSDictionary） 。

编辑：

问题错了，我认为您正在寻找的只是指向当前选定的导航控制器的指针。如果您查询[tabbarcontroller selectedViewController]，您会得到这一点，它返回可见的导航控制器。然后只需将新创建的控制器推送到该导航控制器的堆栈顶部即可。