即使应用程序打开，通知也会显示在通知栏中

Question

我的应用有带有操作按钮的本地通知：暂停和关闭。问题是，当我的应用程序打开时，我在弹出窗口中显示了通知。它显示弹出窗口，通知栏中的通知也显示。作为一般场景，应用程序在前台时不会在通知栏中显示通知。但我可以看到两者。

无法弄清楚这里发生了什么。我已经在 didReceiveLocalNotification 方法中处理了通知，如下所示。

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{

 UIApplicationState state = [application applicationState];
 if (state == UIApplicationStateActive) {

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"MyApp"
                                                    message:notification.alertBody
                                                   delegate:self cancelButtonTitle:@"OK"
                                          otherButtonTitles:@"SNOOZE",@"DISMISS",nil];
    alert.delegate = self;
    [alert show];
 }
}

下面是我的 didFinishLaunching 方法

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

 if ([application respondsToSelector:@selector(registerUserNotificationSettings:)]) {
    UIMutableUserNotificationAction *action1;
    action1 = [[UIMutableUserNotificationAction alloc] init];
    [action1 setActivationMode:UIUserNotificationActivationModeForeground];
    [action1 setTitle:@"SNOOZE"];
    [action1 setIdentifier:kNotificationActionSnooze];
    [action1 setDestructive:NO];
    [action1 setAuthenticationRequired:NO];

    UIMutableUserNotificationAction *action2;
    action2 = [[UIMutableUserNotificationAction alloc] init];
    [action2 setActivationMode:UIUserNotificationActivationModeBackground];
    [action2 setTitle:@"DISMISS"];
    [action2 setIdentifier:kNotificationActionDismiss];
    [action2 setDestructive:NO];
    [action2 setAuthenticationRequired:NO];

    UIMutableUserNotificationCategory *actionCategory;
    actionCategory = [[UIMutableUserNotificationCategory alloc] init];
    [actionCategory setIdentifier:kNotificationCategoryIdent];
    [actionCategory setActions:@[action1, action2] forContext:UIUserNotificationActionContextDefault];

    NSSet *categories = [NSSet setWithObject:actionCategory];
    UIUserNotificationType types = (UIUserNotificationTypeAlert| UIUserNotificationTypeSound| UIUserNotificationTypeBadge);

    UIUserNotificationSettings *settings;
    settings = [UIUserNotificationSettings settingsForTypes:types categories:categories];

    [[UIApplication sharedApplication] registerUserNotificationSettings:settings];

   }

 return YES;
}

见下图：

Answer 1

就这样做

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{

 UIApplicationState state = [application applicationState];
 if (state == UIApplicationStateActive)
  {

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"MyApp"
                                                    message:notification.alertBody
                                                   delegate:self cancelButtonTitle:@"OK"
                                          otherButtonTitles:@"SNOOZE",@"DISMISS",nil];
    alert.delegate = self;
    [alert show];

 [[UIApplication sharedApplication] cancelLocalNotification:notification];
 }
}

当您的应用处于 UIApplicationStateActive 时取消 LocalNotification。

希望对您有所帮助:)

即使应用程序打开，通知也会显示在通知栏中

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