iOS如何从tableview单元格中获取按钮文本

Question

我正在使用简单的表格视图，并且我在每个单元格中添加了按钮，问题是如何从第二个单元格中获取按钮文本，而任何其他单元格编号获取按钮文本我正在使用此代码，但它不起作用

 NSIndexPath *indexPath = [NSIndexPath indexPathForRow:1 inSection:0];

             UITableViewCell *cell = [tbl_view cellForRowAtIndexPath:indexPath];

              for( UITableViewCell *getview in cell.subviews)
              {
                  if([getview isKindOfClass:[UIButton class]])
                  {
                      NSLog(@"sdfsdfsd");
                      // UIButton *button = (UIButton *);
                  }
              }

此代码在tableview单元格中设置按钮

  - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

    {

        static NSString *simpleTableIdentifier = @"SimpleTableItem";

        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
        UILabel *fromLabel = [[UILabel alloc]initWithFrame:CGRectMake(60, 5, 250,20)];
        if (cell == nil) {

            cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
            cell=[[UITableViewCell alloc] init];

        }

        cell.backgroundColor=[UIColor clearColor];
    UIButton *button_chaeckbox = [UIButton buttonWithType:UIButtonTypeCustom];
        button_chaeckbox.backgroundColor=[UIColor clearColor];
        button_chaeckbox.frame = CGRectMake(10, 10, 15, 15);

        if( [checkedArray containsObject:[NSString stringWithFormat:@"%ld",(long)indexPath.row]])
        {
             [button_chaeckbox setBackgroundImage:[UIImage imageNamed:@"checked_checkbox.png"] forState:UIControlStateNormal];
        }else
        {

        [button_chaeckbox setBackgroundImage:[UIImage imageNamed:@"empty_box_b.png"] forState:UIControlStateNormal];
        }
 [button_chaeckbox setTitle:@"creaButtonname" forState:UIControlStateNormal];
        button_chaeckbox.tag=indexPath.row;
        [button_chaeckbox addTarget:self
                   action:@selector(checkboxAction:)
         forControlEvents:UIControlEventTouchUpInside];

        [cell addSubview:button_chaeckbox];
    }

请给我解决方案，我在 ios 7 和 ios 8 中尝试过此代码，但无法正常工作 问候， 尼山特·钱德瓦尼

Answer 1

做一件事，为每个按钮赋予标签值，比如

button_chaeckbox.tag=indexpath.row

在 cellForRowAtIndexPath 方法中。

在checkboxAction中这样做
NSString * titleText=sender.titleLabel.text

然后您将检查按钮操作方法来自哪个单元格

喜欢使用条件 if(sender.tag == //你的手机号第二个值//)

我想你只想要这样。

Answer 2

使用此代码重复使用表格视图中的单元格

    - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

    {

        static NSString *simpleTableIdentifier = @"SimpleTableItem";

        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];

        if (cell == nil) {

            cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
            cell=[[UITableViewCell alloc] init];
            UILabel *fromLabel = [[UILabel alloc]initWithFrame:CGRectMake(60, 5, 250,20)];
            cell.backgroundColor=[UIColor clearColor];
            UIButton *button_chaeckbox = [UIButton buttonWithType:UIButtonTypeCustom];
            button_chaeckbox.backgroundColor=[UIColor clearColor];
            button_chaeckbox.frame = CGRectMake(10, 10, 15, 15);
            [button_chaeckbox addTarget:self
                                 action:@selector(checkboxAction:)
                       forControlEvents:UIControlEventTouchUpInside];

            [cell addSubview:button_chaeckbox];
button_chaeckbox.tag=1001;
        }
        if( [checkedArray containsObject:[NSString stringWithFormat:@"%ld",(long)indexPath.row]])
        {
            [button_chaeckbox setBackgroundImage:[UIImage imageNamed:@"checked_checkbox.png"] forState:UIControlStateNormal];
        }else
        {

            [button_chaeckbox setBackgroundImage:[UIImage imageNamed:@"empty_box_b.png"] forState:UIControlStateNormal];
        }


    }

使用此代码从单元格获取按钮

 NSIndexPath *indexPath = [NSIndexPath indexPathForRow:1 inSection:0];

             UITableViewCell *cell = [tbl_view cellForRowAtIndexPath:indexPath];
UIButton *button_chaeckbox=(UIButton*)[cell viewWithtag:1001]

Answer 3

你可以试试这个

在cellForRowAtIndexPath

[cell.button setTitle:@"RAM" forState:UIControlStateNormal];
cell.button.tag=indexPath.row;
[cell.button addTarget:self action:@selector(cellBtn:) forControlEvents:UIControlEventTouchUpInside];

选择器方法

-(void)cellBtn :(UIButton *)sender
{
     NSIndexPath *indexPath = [NSIndexPath indexPathForRow:sender.tag inSection:0];
     AlertCustomCell *cell = [tableview cellForRowAtIndexPath:indexPath];
     NSString *user = cell.button.titleLabel.text;
     NSLog(@"Text of button is :%@",user);
}

我希望它会起作用

Answer 4

让我指出一件事。如果要遍历表格单元格的所有子视图，则必须将for( UITableViewCell *getview in cell.subviews) 设置为for( UIView *getview in cell.subviews)

代码如下所示

 NSIndexPath *indexPath = [NSIndexPath indexPathForRow:1 inSection:0];

         UITableViewCell *cell = [tbl_view cellForRowAtIndexPath:indexPath];

          for( UIView *getview in cell.subviews)
          {
              if([getview isKindOfClass:[UIButton class]])
              {
                  UIButton *button = (UIButton *)getView;
                  NSLog @("%@",button.titleLabel.text)
              }
          }

Answer 5

我建议创建一个UITableViewCell 子类并将按钮作为该子类的属性。然后在您的代码中看起来像这样。

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *simpleTableIdentifier = @"SimpleTableItem";

    CustomTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
    UILabel *fromLabel = [[UILabel alloc]initWithFrame:CGRectMake(60, 5, 250,20)];
    if (cell == nil) {

        cell = [[CustomTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
    }

    cell.backgroundColor=[UIColor clearColor];
    UIButton *button_chaeckbox = [UIButton buttonWithType:UIButtonTypeCustom];
    button_chaeckbox.backgroundColor=[UIColor clearColor];
    button_chaeckbox.frame = CGRectMake(10, 10, 15, 15);

    if( [checkedArray containsObject:[NSString stringWithFormat:@"%ld",(long)indexPath.row]])
    {
         [button_chaeckbox setBackgroundImage:[UIImage imageNamed:@"checked_checkbox.png"] forState:UIControlStateNormal];

    } else {

         [button_chaeckbox setBackgroundImage:[UIImage imageNamed:@"empty_box_b.png"] forState:UIControlStateNormal];
    }

    [button_chaeckbox addTarget:self
               action:@selector(checkboxAction:)
     forControlEvents:UIControlEventTouchUpInside];

    [cell setCellButton:button_chaeckbox];
    return cell;
}

然后获取按钮：

NSIndexPath *indexPath = [NSIndexPath indexPathForRow:1 inSection:0];

CustomTableCell *cell = (CustomTableCell *)[tbl_view cellForRowAtIndexPath:indexPath];

UIButton * yourButton = cell.CellButton