如何清除iOS中的通知

如果用户将警报样式设置为横幅。他们可以收到超过1个通知，而不会提示他们清除它。他们然后去使用他们的电话，他们说有3个存储。如果点击最新的一个&它打开应用程序，我只想清除只是这一个通知，我也需要去badgeCount--;如何清除iOS中的通知

我怎样才能实现它与下面的代码？（目前它被设置为清除所有我不想要的东西......）我也注意到有时它会更新徽章号码。但如果我切换回iOS主屏幕，并拉下通知菜单，它仍然存在！

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo 
{ 
    if([[userInfo valueForKey:@"aps"] valueForKey:@"alert"] != nil) { 
     NSString *message = [[userInfo valueForKey:@"aps"] valueForKey:@"alert"]; 
     if(message != nil) { 
      UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Usage Alert" 
      message:message delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"Ok", nil]; 
      [alertView show]; 
      [[UIApplication sharedApplication] setApplicationIconBadgeNumber: 0]; 
      [[UIApplication sharedApplication] cancelAllLocalNotifications]; 

     } 
    } 
}

来源

2013-02-26 Baconbeastnz

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


UIApplication *app = [UIApplication sharedApplication]; 
NSInteger badgeNumber = [app applicationIconBadgeNumber];// Take the current badge number 
badgeNumber--; // decrement by one 
[app setApplicationIconBadgeNumber:badgeNumber]; // set ne badge number 
[app cancelLocalNotification:notification]; // cancel the received notification. It will clear the notification from banner alos 
}

来源

2013-02-26 04:42:33

http://stackoverflow.com/questions/17107957/how-to-clear-a-single-通知 - 从-A-列表中的通知上单击 – SWT 2013-06-14 13:10:14

您可以添加

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

到应用程序委托。这将被称为，在那里你可以使用

[[UIApplication sharedApplication] cancelLocalNotification:notification];

删除特定的通知并减少徽章计数。

来源

2013-02-26 03:03:27 Dos43

我要警惕调用

[[UIApplication sharedApplication] setApplicationIconBadgeNumber:bg_NUM]

从

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

方法！

如果一些证件号码您安排本地通知，然后徽章将后置异步几毫秒进入到-didReceiveLocalNotification

样品：

-(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification { [[UIApplication sharedApplication] setApplicationIconBadgeNumber:0]; // ^^^ maybe not reset badge to 0!! ^^^ }

另一个代码：

-(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification { sleep(1); //waiting for system is set our scheduled badge [[UIApplication sharedApplication] setApplicationIconBadgeNumber:0]; // ^^^ most chances for reset badge to 0 ^^^ }

测试代码，屏幕触摸安排本地通知和系统实际设置徽章之前计算延迟：

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [[UIApplication sharedApplication] setApplicationIconBadgeNumber:0]; UILocalNotification *localNotif = [[[UILocalNotification alloc] init] autorelease]; localNotif.applicationIconBadgeNumber = rand()%100+1; localNotif.fireDate = [NSDate dateWithTimeIntervalSinceNow:1]; [[UIApplication sharedApplication] scheduleLocalNotification:localNotif]; } [...] - (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification { CFAbsoluteTime startTime = CFAbsoluteTimeGetCurrent(); while ([UIApplication sharedApplication].applicationIconBadgeNumber == 0) sleep(0); NSLog(@"badge set: %d after %f sec.", [UIApplication sharedApplication].applicationIconBadgeNumber, CFAbsoluteTimeGetCurrent()-startTime); }

输出：

badge set: 41 after 0.000839 sec. badge set: 9 after 0.000754 sec. badge set: 56 after 0.076026 sec. badge set: 17 after 0.069889 sec. badge set: 8 after 0.056245 sec. badge set: 71 after 0.120729 sec. badge set: 28 after 0.122720 sec. badge set: 17 after 0.000758 sec.

该测试在IOS 4.2/4.3/5.0 /在不同的设备6.1

在-didReceiveLocalNotification消息中重置徽章号码时要小心！ （这真仅对LocalNotification /不远程推/且仅当应用程序处于活动上接收时刻）

来源

2013-08-22 21:12:22 CodeShift

如何清除iOS中的通知

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