iphone如何使用UITextField传递值cell.detailTextLabel

Question

我的问题是我需要得到用户输入的值然后传递给detailTextlabel，但是我传递给detailtextlabel的地方是null。

我的代码在这里。

- (IBAction) scheduleAlarm:(id) sender { 
    [eventText resignFirstResponder]; 
    [numText resignFirstResponder]; 
    NSCalendar *calendar = [NSCalendar autoupdatingCurrentCalendar]; 

    // Get the current date 
    NSDate *pickerDate = [self.datePicker date]; 

    // Break the date up into components 
    NSDateComponents *dateComponents = [calendar components:(NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit) 
                fromDate:pickerDate]; 
    NSDateComponents *timeComponents = [calendar components:(NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit) 
                fromDate:pickerDate]; 

    // Set up the fire time 
    NSDateComponents *dateComps = [[NSDateComponents alloc] init]; 
    [dateComps setDay:[dateComponents day]]; 
    [dateComps setMonth:[dateComponents month]]; 
    [dateComps setYear:[dateComponents year]]; 
    [dateComps setHour:[timeComponents hour]]; 
    // Notification will fire in one minute 
    [dateComps setMinute:[timeComponents minute]]; 
    //[dateComps setSecond:[timeComponents second]]; 
    NSDate *itemDate = [calendar dateFromComponents:dateComps]; 
    [dateComps release]; 

    UILocalNotification *localNotif = [[UILocalNotification alloc] init]; 
    if (localNotif == nil) 
     return; 
    localNotif.fireDate = itemDate; 
    // localNotif.timeZone = [NSTimeZone defaultTimeZone]; 
    //string = [numText.text retain]; 
    string = [[NSString alloc] initWithString:numText.text]; 
    numText = [self numText]; 
    [self.view insertSubview:numText atIndex:1]; 
    NSLog(@"%@",string); 
    // Notification details 
    localNotif.alertBody = [eventText text]; 

    // Set the action button 
    localNotif.alertAction = @"Send SMS"; 

    localNotif.soundName = UILocalNotificationDefaultSoundName; 
    localNotif.applicationIconBadgeNumber = 1; 

    // Specify custom data for the notification 
    NSDictionary *infoDict = [NSDictionary dictionaryWithObject:@"someValue" forKey:@"someKey"]; 
    localNotif.userInfo = infoDict; 

    // Schedule the notification 
    [[UIApplication sharedApplication] scheduleLocalNotification:localNotif]; 
    [localNotif release]; 
    //[numText release]; 
    [self.tableview reloadData]; 

} 

在第一次我传递按钮，我可以得到value.but在哪里我去表视图看出来（空）给我。的

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { 

    static NSString *CellIdentifier = @"Cell"; 

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    if (cell == nil) { 
     cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease]; 
    } 
    // if (cell == nil) { 
    // cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease]; 
    //} 
    // Configure the cell... 

    notificationArray = [[UIApplication sharedApplication] scheduledLocalNotifications]; 
    UILocalNotification *notif = [notificationArray objectAtIndex:indexPath.row]; 
    // NSString *enNote = [[NSString alloc] initWithString:string]; 


    [cell.textLabel setText:notif.alertBody]; 

    NSString *abc = [NSString stringWithFormat:@"%@ \n %@",[notif.fireDate description], string]; 
    NSLog(@"%@",string); 
    [cell.detailTextLabel setText:abc]; 
    cell.detailTextLabel.numberOfLines = 2; 

    //cell.detailTextLabel.lineBreakMode = UILineBreakModeWordWrap; 




    return cell; 
} 

Answer 1

代替cell.detailTextLabel使用cell.textLabel.text

像：

的NSString * ABC = [NSString的 stringWithFormat：@“％@ \ n ％@“，[notif.fireDate description]， string]; NSLog（@“％@”，string）;

cell.textLabel.text = abc;