objective-c - 接收远程推送通知时打开 View Controller

Question

我正在使用 storyboard ，我想在用户收到远程推送通知时始终打开相同的 View ，即使应用程序在后台或已打开。我需要呈现的 View 是 Storyboard中设置的初始 View Controller 之后的四个 View 。我读了这篇文章:

How can I show a modal view in response to a notification as a new window? (no parent vc)

Open a specific tab/view when user receives a push notification

这是我的代码:

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {

    UINavigationController *navController = (UINavigationController *)self.window.rootViewController;
    notificacionViewController *menu = [navController.storyboard instantiateViewControllerWithIdentifier:@"notificacion"];

    // First item in array is bottom of stack, last item is top.
    navController.viewControllers = [NSArray arrayWithObjects:menu,nil];

    [self.window makeKeyAndVisible];


}

但是当我收到通知时，应用程序崩溃并出现此错误:

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[locationViewController setViewControllers:]: unrecognized selector sent to instance 0x42ccd0'

locationViewController 是 Storyboard中设置为初始的 View Controller 。

非常感谢。

Answer 1

请尝试以下代码:

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
    UINavigationController *navController = (UINavigationController *)self.window.rootViewController;
    NotificationViewController *notificationViewController = [[NotificationViewController alloc] init];
    [navController.visibleViewController.navigationController pushViewController:notificationViewController];    
}