如何在tableview中显示日期选择器、uipickerview和在不同情况下单击文本字段时的正常键盘编辑？

Question

在我看来，我正面临着一个独特的问题，对于这个问题，我已经参考了以下链接link 1 & link 2，但我还没有完全解决这些问题，所以在这里发布我的问题。我正在使用11种不同类型的原型单元实现一个40行的UITableview。其中一个原型单元具有UILabel和UITextfield。现在，由于我使用标识符重用了这个原型单元格，我希望执行以下操作:对于单击textfield时的第0行，我希望显示一个datepicker视图。对于第1行，单击文本字段时，我想做正常的编辑。对于第二行，点击文本字段，我想做正常的编辑。对于第3行，单击文本字段时，我想显示一个选取器视图。并且沿着线路向下对于特定行重复类似的图案。我的问题在于如何获得关于委托是从哪一行传递过来的信息。下面是我的代码：

if (0 == indexPath.row)
    {
            cellIdentifier = @"CellLabelText";
            cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
            cellLabel = (UILabel *)[cell viewWithTag:101];
            cellLabel.text = [self.modelDataObj.labelTextArray objectAtIndex:indexPath.row];
            textField1 = (UITextField *)[cell viewWithTag:102];
            rowNum = indexPath.row;
            textField1.delegate = self;
            /*  
             placeholder text value is current date set (TBD)
             */

        }
        else if ((1 == indexPath.row) ||(2 == indexPath.row)||(3 == indexPath.row)||
                 (4 == indexPath.row) ||(6 == indexPath.row)||(10 == indexPath.row)||
                 (11 == indexPath.row)||(28 == indexPath.row)||(41 == indexPath.row))
        {
            cellIdentifier = @"CellLabelText";
            cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
            cellLabel = (UILabel *)[cell viewWithTag:101];
            cellLabel.text = [self.modelDataObj.labelTextArray objectAtIndex:indexPath.row];
            rowNum = indexPath.row;
            switch (indexPath.row) {
                case 1:

                            textField1 = (UITextField *)[cell viewWithTag:102];
                            textField1.delegate = self;
                            break;
                case 2:

                            textField1 = (UITextField *)[cell viewWithTag:102];
                            textField1.delegate = self;
                            break;
                case 3:

                            textField1 = (UITextField *)[cell viewWithTag:102];
                            textField1.delegate = self;
                            break;
                case 4:

                            textField1 = (UITextField *)[cell viewWithTag:102];
                            textField1.delegate = self;
                            break;
                case 6:

                            textField1 = (UITextField *)[cell viewWithTag:102];
                            textField1.delegate = self;
                            break;
                case 10:

                            textField1 = (UITextField *)[cell viewWithTag:102];
                            textField1.delegate = self;
                            break;
                case 11:

                            textField1 = (UITextField *)[cell viewWithTag:102];
                            textField1.delegate = self;
                            break;
                case 41:

                            textField1 = (UITextField *)[cell viewWithTag:102];
                            textField1.delegate = self;
                            break;

                case 28:
                            textField1 = (UITextField *)[cell viewWithTag:102];
                            textField1.delegate = self;
                            break;
                default:
                    break;
            }
        }

下面是我的textShouldBeginEditing方法代码：

-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
    [textField resignFirstResponder];
    NSLog(@"In textFieldShouldBeginEditing");
    BOOL finalReturn;
    NSLog(@"row selected is %d", rowNum);
    UIViewController *vc = [[UIViewController alloc] init];
    UINavigationController *navc = [[UINavigationController alloc] initWithRootViewController:vc];

    if (0 == rowNum)//)
    {
        UIDatePicker *datePicker = [[UIDatePicker alloc] initWithFrame:CGRectMake(5, 5, 300, 600)];
        datePicker.datePickerMode = UIDatePickerModeDate;
        datePicker.hidden = NO;
        datePicker.date = [NSDate date];
        [datePicker addTarget:self
                    action:@selector(changeDateInLabel:)
                    forControlEvents:UIControlEventValueChanged];

        [self.view addSubview:datePicker];

        UIBarButtonItem *donebtn = [[UIBarButtonItem alloc] initWithTitle:@"Done" style:UIBarButtonItemStyleDone target:self action:@selector(dismissPopoverAnimated:)];

        vc.navigationItem.rightBarButtonItem  = [[UIBarButtonItem alloc] init];
        [vc.navigationItem setRightBarButtonItem:donebtn animated:NO];
        [vc.view setBackgroundColor:[UIColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:1.0]];
        [vc.view addSubview:datePicker];

        self.popvc = [[UIPopoverController alloc] initWithContentViewController:navc];

        [self.popvc setPopoverContentSize:CGSizeMake(datePicker.bounds.size.width+(datePicker.frame.origin.y*2),250+(datePicker.frame.origin.x*2))];
            //NSLog(@"Height of the picker view while embedding in popover %f", pickerView.bounds.size.height);

        [self.popvc presentPopoverFromRect:textField.frame inView:textField.superview permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];

        finalReturn = NO;
    }
    else if ((1 == rowNum) || (2 == rowNum))
    {
        finalReturn = YES;
    }
    else
    {
    finalReturn = YES;
    }
return finalReturn;
}

问题是，对于当前可见且执行了satement的行，rowNum被设置为value。因此，如果赋值rowNum的最后一条语句发生在第12行，我将不能使用它来触发textFieldShouldBeginEditing中第0行的日期选择器，因为当它被设置为0时，文本字段没有被单击，而当它被单击时，rowNum被设置为12左右。基本上，我如何触发行0的datepicker，行3的uipicker，行1和2的普通编辑，等等。我找不到任何东西，我还在尝试不同的角度。任何帮助我们都深表感谢。

Answer 1

在textFieldShouldBeginEditing中，尝试获取textField的superview，它是表格视图单元格的内容视图，并获取它的superview，它应该是一个表格视图单元格。

之后，您可以找到该特定表格视图单元格的indexPath，并根据indexPath的行来决定显示什么内容。