如何在表格视图中一次选择单选按钮 [英] How to select radio button at a time in table view

问题描述

我在表格视图单元格中有一个单选按钮.这是我的单选按钮

I am having a radio button in table view cell. This is my radio button

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"myCell"];
    if(cell == nil) 
    {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"myCell"];
        cell.selectionStyle = UITableViewCellSelectionStyleNone;

        UIButton *newRadioButton = [UIButton buttonWithType:UIButtonTypeCustom];
        newRadioButton.frame = CGRectMake(30, 0, 15, 14.5);
        [newRadioButton setImage:[UIImage imageNamed:@"unselect"] forState:UIControlStateNormal];
        [newRadioButton setImage:[UIImage imageNamed:@"select"] forState:UIControlStateSelected];
        cell.accessoryView = newRadioButton;

        if ([indexPath isEqual:selectedIndex]) 
        {
            newRadioButton.selected = YES;
        } 
        else 
        {
            newRadioButton.selected = NO;
        }
    }
    cell.textLabel.text = [array objectAtIndex:indexPath.row];
    return cell;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    selectedIndex = indexPath;
    [table reloadData];
}

-(void)radiobtn:(id)sender
{
    if([sender isSelected])
    {
        [sender setSelected:NO];
    } else
    {
        [sender setSelected:YES];
    }
}

它可以工作，但我想一次只选择一个单选按钮，就像这张图片(左).但对我来说，选择所有单选按钮(右).

Its working,But i want to select only one radio button at a time like this image (left). But for me selecting all the radio button (right).

我需要让它看起来像第一张图片.

I need to make it look like the first image.

推荐答案

我觉得你应该试试:

在 YourViewController.h

  @interface YourViewController : UITableViewController {
     NSIndexPath *selectedIndex
    } 

在 YourViewController.m

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
    {
     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"myCell"];
        if(cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"myCell"];
        UIButton *newRadioButton;
        newRadioButton = [UIButton buttonWithType:UIButtonTypeCustom];
        newRadioButton.frame = CGRectMake(30, 0, 15, 14.5);
        [newRadioButton setImage:[UIImage imageNamed:@"unselect"] forState:UIControlStateNormal];
        [newRadioButton setImage:[UIImage imageNamed:@"select"] forState:UIControlStateSelected];
        cell.accessoryView = newRadioButton;
     }
       if ([indexPath isEqual:selectedIndex]) {
         newRadioButton.seleted = YES; 
       } else {
         newRadioButton.seleted = NO;
       }
   cell.textLabel.text = [array objectAtIndex:indexPath.row];
    return cell;
  }

和

 - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
        selectedIndex = indexPath;
        [tableView reloadData];
 }

此链接可能对您有所帮助

这篇关于如何在表格视图中一次选择单选按钮的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！