Question

我的tableview单元格包含一个标签和一个文本字段，我正在重用我的单元格，它正在工作。但是当我在第一个文本字段中输入文本并点击返回时我想转到下一个文本字段，我该如何处理呢？

Answer 1

这就是我的所作所为：

使用以下方法创建委托协议：

- (void)textFieldInCellDidReturn:(UITableViewCell*)cell;
- (void)textFieldInCellDidBeginEditing:(UITableViewCell*)cell;
- (void)textFieldInCellDidEndEditing:(UITableViewCell*)cell;

在单元格中：

-(BOOL)becomeFirstResponder
{
    return [self.inputTextField becomeFirstResponder];
}

-(void)textFieldDidBeginEditing:(UITextField *)textField
{
    if ([self.delegate respondsToSelector:@selector(textFieldInCellDidBeginEditing:)])
    {
        [self.delegate textFieldInCellDidBeginEditing:self];
    }
}
-(void)textFieldDidEndEditing:(UITextField *)textField
{
    if ([self.delegate respondsToSelector:@selector(textFieldInCellDidEndEditing:)])
    {
        [self.delegate textFieldInCellDidEndEditing:self];
    }
}
-(BOOL)textFieldShouldReturn:(UITextField *)textField
{
    if ([self.delegate respondsToSelector:@selector(textFieldInCellDidReturn:)])
    {
        [self.delegate textFieldInCellDidReturn:self];
    }
    return NO;
}

在视图控制器和表视图委托中，声明iVar NSIndexPath* indexPathOfFirstResponder并采用委托

- (void)textFieldInCellDidBeginEditing:(UITableViewCell *)cell
{
    indexPathOfFirstResponder = [self.theTable indexPathForCell:cell];
}

-(void)textFieldInCellDidReturn:(UITableViewCell *)cell
{
    NSIndexPath* indexPathForCell = [self.theTable indexPathForCell:cell];
    if(indexPathForCell.row < [self.theTable numberOfRowsInSection:indexPathForCell.section]-1)
    {
        NSIndexPath* nextIndexPathInSection = [NSIndexPath indexPathForRow:indexPathForCell.row+1 inSection:indexPathForCell.section];
        UITableViewCell* nextCellInSection = [self.theTable cellForRowAtIndexPath:nextIndexPathInSection];
        if (nextCellInSection)
        {
            [nextCellInSection becomeFirstResponder];
        }
        else
        {
            indexPathOfFirstResponder = nextIndexPathInSection;
            [self.theTable scrollToRowAtIndexPath:nextIndexPathInSection atScrollPosition:(UITableViewScrollPositionMiddle) animated:YES];
        }
    }
    else
    {
        [self.theTable endEditing:YES];
    }
}

-(void)textFieldInCellDidEndEditing:(UITableViewCell *)cell
{
    indexPathOfFirstResponder = nil;
}

-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if ([indexPath isEqual:indexPathOfFirstResponder])
    {
        [cell becomeFirstResponder];
    }
}

Answer 2

为textField设置顺序标记，例如0,1,2 ..... 导入textField委托方法textFieldDidEndEditing。每当按下返回键时，都会调用此方法。

使用类似的东西：

-(void)textFieldDidEndEditing:(UITextField *)textField{
   if(textField.tag == currentTextFieldTag+1){
    [textField becomesFirstResponder];
}
}

Answer 3

行单元格中的

使用此代码

cell.textField.tag = indexPath.row;

现在实施UITextFieldDelegate方法

-(void)textFieldDidEndEditing:(UITextField *)textField
{
    NSIndexPath *indexPath = [NSIndexPath indexPathForRow:textField.tag+1 inSection:YOUR_SECTION];

UITableViewCell* cell = [yourTable cellForRowAtIndexPath:indexPath];
[cell.textField becomesFirstResponder]; 


 // if you need  [yourTable reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
     }

我希望这会有所帮助.Thankyou

如何使用textfield处理表格视图单元格

3 个答案: