Question

我的问题是我需要获取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];

}

在第一个我传递按钮我可以得到值。但是我去表格视图看到是对我来说是空的。

- (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

而不是 cell.detailTextLabel 使用 cell.textLabel.text

喜欢：

NSString * abc = [NSString   stringWithFormat：@＆＃34;％@ \ n   ％@＆＃34;，[notif.fireDate说明]，   串];       的NSLog（@＆＃34;％@＆＃34;，字符串）;

cell.textLabel.text = abc;

iphone如何使用UITextField将值传递给cell.detailTextLabel

1 个答案: