iOS:调用方法的 UITableViewCell 中的 UITextField

Question

我需要在 UITableViewCell 中使用 UITextField。这是使用 Parse 开源，我希望它发回一个标题。所以当它调用 cellForRowAtIndexPath 时，它需要做这样的事情。

     - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath object:(PFObject *)object
    {
      static NSString *CellIdentifier = @"Cell";
      UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
      UITextField *TextField = (UITextField *) [cell viewWithTag:284];

      [TextField setReturnKeyType:UIReturnKeyDone];
      [TextField addTarget:self
                              action:@selector(TitleTextFieldFinished:indexPath:object:)
                    forControlEvents:UIControlEventEditingDidEndOnExit];

      TextField.text = [object objectForKey:@"Toppingname"];

      return cell;

    }

那么它可能会这样调用:

- (void)TitleTextField:(UITextField *)TextField:(NSIndexPath *)indexPath:(PFObject *)object
{

  [TextField resignFirstResponder];
  PFQuery *item = [PFQuery queryWithClassName:@"className"];
  [item getObjectInBackgroundWithId:self.menuid
                              block:^(PFObject *title, NSError *error) {
                                NSString *newTitle = @"New title";
                                title[@"title"] = newTitle;
                                [title saveInBackground];

                              }];
}

如果有人能提供帮助那就太好了!

Answer 1

实现可以像下面这样

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

    // Configure the cell...

    UITextField *textField = (UITextField *) [cell viewWithTag:284];

    [textField setReturnKeyType:UIReturnKeyDone];
    [textField addTarget:self
                  action:@selector(titleTextField:inIndexPath:forObject:)
        forControlEvents:UIControlEventEditingDidEndOnExit];

    textField.text = @"Sandeep";

    return cell;
}


- (void)titleTextField:(UITextField *)textField inIndexPath:(NSIndexPath *)indexPath forObject:(PFObject *)object {

    [textField resignFirstResponder];

}

但是您不会获得“indexPath”和“object”值，因为 sender(UITextField) 不知道应该发送哪个 indexPath 和哪个对象。