如何在单击本地通知时获取特定的视图控制器？..我尝试了所有可能的方法来实现但无法实现

Question

我在第一个带有按钮的控制器上有两个视图控制器，单击该按钮会触发本地通知，但我想在单击本地通知时打开第二个视图控制器。已遍历所有相关 post 但无法得到解决方案。

我的代码是：在第一个视图控制器视图中加载：

 isGrantedNotificationAccess = false;
    UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
    UNAuthorizationOptions options =  UNAuthorizationOptionSound + UNAuthorizationOptionAlert;
    [center requestAuthorizationWithOptions:options completionHandler:^(BOOL granted, NSError * _Nullable error) {
        isGrantedNotificationAccess = granted;
    }];

仅限第一个视图控制器中的按钮操作：

 - (IBAction)buttonAction:(id)sender {
    if (isGrantedNotificationAccess) {
        UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
        UNMutableNotificationContent *muContent = [[UNMutableNotificationContent alloc] init];
        muContent.title = @"Keshav Title";
        muContent.subtitle = @"He is an iOS Developer";
        muContent.body = @"He is a body";
        muContent.sound = [UNNotificationSound defaultSound];
        UNTimeIntervalNotificationTrigger *trigger = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:3 repeats:NO];
        UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:@"UYLocalNotification" content:muContent               trigger: trigger];

        [center addNotificationRequest:request withCompletionHandler:nil];
    }
}

在appdelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
    center.delegate  = self;
    return  YES;
}


-(void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler
{
    UNNotificationPresentationOptions present = UNNotificationPresentationOptionAlert + UNNotificationPresentationOptionSound ;
    completionHandler(present);
}

-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler{

    if(application.applicationState == UIApplicationStateActive) {
        //app is currently active, can update badges count here
    } else if(application.applicationState == UIApplicationStateBackground){
        //app is in background, if content-available key of your notification is set to 1, poll to your backend to retrieve data and update your interface here
        self.window = [[UIWindow alloc] initWithFrame:UIScreen.mainScreen.bounds];
        UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
        UIViewController *viewController =  [storyboard instantiateViewControllerWithIdentifier:@"secondViewController"];
        self.window.rootViewController = viewController;
        [self.window makeKeyAndVisible];
    } else if(application.applicationState == UIApplicationStateInactive){
        //app is transitioning from background to foreground (user taps notification), do what you need when user taps here
    }
}

Answer 1

在AppDelegate

- (void)userNotificationCenter:(UNUserNotificationCenter *)center
       didReceiveNotificationResponse:(UNNotificationResponse *)response
       withCompletionHandler:(void (^)(void))completionHandler {



      UINavigationController *nvc = (UINavigationController *)self.window.rootViewController;

      // Currently visible ViewController
      UIViewController *vc = nvc.visibleViewController;

      UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Main"
                                             bundle:NULL];
      // YourViewController to Push in Your case SecondViewController
      yourViewController *myVc= [sb instantiateViewControllerWithIdentifier:@"yourViewController"];

      [navigationController pushViewController:myVc animated:true];
}

您可以通过response.actionIdentifier

查看特定通知

在你的情况下 response.notification.request.content.categoryIdentifier 您检查特定的通知

设置catagoryIdentifier

muContent.categoryIdentifier = @"Your_Identifier";

如何在单击本地通知时获取特定的视图控制器？..我尝试了所有可能的方法来实现但无法实现

How to get specific view controller on click of local Notification?..I tried all possible way to achieve but couldn't

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