Question

我有一个UITableView，每个UITableViewCell都有一个文本字段和UILabel。如何在编辑相应单元格中的文本字段时更新单元格上的标签字符串。

我尝试过类似的东西，但它没有用

UITextField *myTextField = (UITextField *)[cell viewWithTag:100];
UILabel *myLabel = (UILabel *)[cell viewWithTag:101];
[myTextField addTarget:self action:@selector(textFieldEdited:event:) forControlEvents:UIControlEventEditingDidEnd];    

- (void)textFieldEdited:(UITextField*)textfield event:(UIEvent*)event
{
    NSIndexPath* indexPath = [myTable indexPathForRowAtPoint:
                          [[[event touchesForView:textfield] anyObject]
                           locationInView:cartTable]];
    NSLog(@"%d",indexPath.row);
    UILabel *myLabel = (UILabel *)[[myTable cellForRowAtIndexPath:indexPath] viewWithTag:101];
    [myLabel setText:@"44"];
}

但它不起作用。

Answer 1

试试这个..这可能会对你有所帮助。

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
    UITableviewCell *currentCell = (UITableviewCell *) [textField superView];
    UILabel *label = [currentCell viewWithTag:YOURLABELTAG];
    label.text = [NSString stringWithFormat:@"%@%@",textField.text,string];
    return YES;
}

注意：不要忘记设置textFieldDelegate并设置label Tag

Answer 2

在textFieldEdited中：更新数据源并重新加载表数据

[myTable reloadData];

然后处理更改，然后在您的cellForRowAtIndexPath：方法中返回更新的单元格。

Answer 3

   CGPoint location = [tableview convertPoint:yourtextfield.frame.origin fromView:yourtextfield.superview];
   NSIndexPath *indexPath = [tblItemList indexPathForRowAtPoint:location];


   UITableview *cell = [self.table cellForRowAtIndexPath:indexPath];

      for (UIView *subView in cell.subviews) 
        {

          if ([subView isKindOfClass:[UILabel class]]) 
            {

                  [(UILabel *) subView setText:@"Hearts"];

            }
        }

Answer 4

查找单元格的索引路径是简单的一行代码

NSIndexPath * indexPath = [tableView indexPathForCell：cell];

在相应的表格单元文本字段中更改tableviewcell的子视图

4 个答案: