如何在UITableViewController單元中刪除UILocalNotification？

Question

我的問題是，當我嘗試從TableView中刪除一個單元格。它似乎總是崩潰。問題是因爲它不能刪除一個UILocalNotification，它不知道從哪裏刪除它。似乎我需要一種方法來將整數分配給每個UILocalNotification或者其他的東西。我還沒有嘗試過，因爲我不知道該怎麼做。

這是我如何使用UILocalNotifications：

-(IBAction)threehour:(id)sender{ 
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; 

NSString *remind = [defaults objectForKey:@"remind"]; 

NSDate *alertTime = [[NSDate date] dateByAddingTimeInterval:10800]; 

UILocalNotification *localNotification = [[UILocalNotification alloc] init]; 

localNotification.fireDate = alertTime; 
localNotification.alertBody = remind; 
localNotification.soundName =@"alarm.mp3"; 
localNotification.timeZone = [NSTimeZone defaultTimeZone]; 


NSDictionary *infoDict = [NSDictionary dictionaryWithObjectsAndKeys:@"Object 1", @"Key 1", @"Object 2", @"Key 2", nil]; 
localNotification.userInfo = infoDict; 

[[UIApplication sharedApplication] scheduleLocalNotification:localNotification]; 

[self performSegueWithIdentifier:@"AlarmTimeBack" sender:sender]; 
} 

這是我的表視圖代碼：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
    { 
     static NSString *CellIdentifier = @"Cell"; 
     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath]; 

     // Get list of local notifications 
     NSArray *localNotifications = [[UIApplication sharedApplication] scheduledLocalNotifications]; 
     UILocalNotification *localNotification = [localNotifications objectAtIndex:indexPath.row]; 

     // Display notification info 
     [cell.textLabel setText:localNotification.alertBody]; 
     [cell.detailTextLabel setText:[localNotification.fireDate description]]; 

     return cell; 
    } 

    - (void)reloadTable 
    { 
     [self.tableView reloadData]; 
    } 

    // Override to support conditional editing of the table view. 
    - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath 
    { 
     // Return NO if you do not want the specified item to be editable. 

     return YES; 

     [self.tableView reloadData]; 
    } 

    // Override to support editing the table view. 
    - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath 

    { 
     if (editingStyle == UITableViewCellEditingStyleDelete) { 
      // Delete the row from the data source 
      [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade]; 

     } 
     else if (editingStyle == UITableViewCellEditingStyleInsert) { 
      // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view 
     } 

     [tableView reloadData]; 
    } 

    // Swipe ot delete action. 
    - (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath 
    { 
     return UITableViewCellEditingStyleDelete; 
    } 

    // Override to support conditional rearranging of the table view. 
    - (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath 
    { 
     // Return NO if you do not want the item to be re-orderable. 
     return YES; 
    } 

    - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath 
    { 
      if (self.searchDisplayController.isActive) { 
      [self performSegueWithIdentifier:@"ShowDetail" sender:self]; 
     } 
    } 

@end 

Answer 1

更改這樣的代碼，這將有助於我想......

if (editingStyle == UITableViewCellEditingStyleDelete) 
{ 
    // Delete the row from the data source 

    NSArray *localNotifications = [[UIApplication sharedApplication] scheduledLocalNotifications]; 
    UILocalNotification *notify = [localNotifications objectAtIndex:indexPath.row]; 
    [[UIApplication sharedApplication] cancelLocalNotification:notify];    
    [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade]; 
} 

Answer 2

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