Question

我有6个 UILocalNotifications。每个通知都有自己的“userInfo”

@ “1”
@ “2”
@ “3”
@ “4”
@ “5”
@ “6”

然后我删除通知编号4，并有5个通知：

@ “1”
@ “2”
@ “3”
@ “5”
@ “6”

如何在通知中更改“userInfo”以获取：

@ “1”
@ “2”
@ “3”
@ “4”
@ “5”

保存代码 -

// Specify custom data for the notification

NSDictionary *infoDict = [NSDictionary dictionaryWithObject:[NSString stringWithFormat:@"%i", i] forKey:@"notif"];
localNotif.userInfo = infoDict;
 i = i + 1;

Del code -

if (flagTable == 1)
{
    int numberPhoto = [[[UIApplication sharedApplication] scheduledLocalNotifications] count];
    int numPhFlag = numberPhoto;
    int i = 0;
    NSLog(@"Col notif = %d", numberPhoto);
    UILocalNotification *localNotif = [[UILocalNotification alloc] init];
    while (numberPhoto == numPhFlag) {
        localNotif = [[[UIApplication sharedApplication] scheduledLocalNotifications] objectAtIndex:i];
        localNotif.timeZone = [NSTimeZone localTimeZone];
        NSDateFormatter *format = [[NSDateFormatter alloc] init];
        [format setDateFormat:@"dd-MM-yyyy HH:mm"];
        NSString *itemDateWithFormat = [format stringFromDate:localNotif.fireDate];
        NSLog(@"remText2 %@ = fireDate2 %@", itemDateWithFormat, [appDel.fireDateArray objectAtIndex:row]);
        if ([itemDateWithFormat isEqualToString:[appDel.fireDateArray objectAtIndex:row]]) {
            NSLog(@"remText3 %@ = fireDate3 %@", itemDateWithFormat, [appDel.fireDateArray objectAtIndex:row]);
            [[UIApplication sharedApplication] cancelLocalNotification:localNotif];
            numPhFlag = numPhFlag - 1;
        }
        i = i + 1;
    }
    int getNot = [[[UIApplication sharedApplication] scheduledLocalNotifications] count];
    NSLog(@"Col notif2 = %d", getNot);
}

我想迭代通知并替换其userInfo中的数据。

Answer 1

得到答案=）

int notifCount = [[[UIApplication sharedApplication] scheduledLocalNotifications] count];
for (int j = 0; j < notifCount; j++) {
    UILocalNotification *notific = [[[UIApplication sharedApplication] scheduledLocalNotifications] objectAtIndex:j];
    NSLog(@"notificBefore = %@ and j = %i", [notific.userInfo objectForKey:@"notif"], j+1);
    if ([notific.userInfo objectForKey:@"notif"] != [NSString stringWithFormat:@"%i", j+1]) {
        [[UIApplication sharedApplication] cancelLocalNotification:notific];
        NSDictionary *infoDict = [NSDictionary dictionaryWithObject:[NSString stringWithFormat:@"%i", j+1] forKey:@"notif"];
        [notific setUserInfo:infoDict];
        NSLog(@"notificEnd = %@", [notific.userInfo objectForKey:@"notif"]);
        [[UIApplication sharedApplication] scheduleLocalNotification:notific];
    }
}

Answer 2

关于UILocalNotification的一件事是您无法编辑任何uilocalnofication的信息。你必须取消它并重新安排它。因此，在重新安排时，您必须使用现有的预定通知数组并重新安排（安排新通知并取消现有通知。这类似于您通过取消和重新安排来替换通知）

NSArray *scheduledNotifications = [[UIApplication sharedApplication] scheduledNotifications];
i = 0;
for (UILocalNotification *notif in scheduledNotifications) {
  UILocalNotification *notifToReschedule;

  i++; 

  notifToReschedule.userInfo = [NSString stringWithFormat:@"%@",i];
  notifToReschedule.timeZone = notif.timeZone
  // you can use the already scheduled local notification's information to schedule another one. and cancel the one yo are iterating through. 

  [[UIApplication sharedApplication] scheduleLocalNotification:notifToReschedule];

  [[UIApplication sharedApplication] cancelLocalNotification:notif];
}

我如何在UILocalNotification中更改UserInfo？

2 个答案: