iphone - 如何在特定索引路径的表格视图中插入单元格中的值？

Question

我在 tableview 中有一个标签和文本字段，现在我想要的是我在 textfieldDidEditing 方法的文本字段中插入的任何值，它应该计算该值并将其返回到 tableviewvw 的索引路径中的标签。

Answer 1

在textfieldDidEditing中，可以获取对应textfield的单元格，计算value赋值给label，如下：

yourTableViewCell *cell = (yourTableViewCell *)[[textField superview] superview];
cell.yourLabel.text = value;

Answer 2

/* u just give Tag to TextField and in textFieldDidEndEditing, save textfield text into an string and then reload the row...here is the code..also have sample */


-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexpath
{
    UITableViewCell *cell = [[UITableViewCell alloc] init];

    UITextField *txtField1 = [[UITextField alloc]initWithFrame:CGRectMake(20, 10, 100, 80)];
    txtField1.tag = indexpath.row;
    txtField1.delegate= self;
    [cell addSubview:txtField1];

    UILabel *label1 = [[UILabel alloc] initWithFrame:CGRectMake(140, 10, 100, 80)];

    [cell addSubview:label1];

    //set text in label ** str1 comes from textFieldDidEndEditing
    label1.text = str1;

    return cell;
}

-(void)textFieldDidEndEditing:(UITextField *)textField
{
    //save textField text to any string**declair it global
    str1 = textField.text;

    //reload selected row in table
    NSIndexPath *durPath = [NSIndexPath indexPathForRow:textField.tag inSection:0];
    NSArray *paths = [NSArray arrayWithObject:durPath];
    [tbl reloadRowsAtIndexPaths:paths withRowAnimation:UITableViewRowAnimationRight];
}