更改自定义单元格中按钮的图像 [英] change image of button in custom cell

问题描述

我想在自定义单元格上更改按钮的图像，给定代码在双击时更改图像.我想在单击时更改图像(选中和取消选中)

I want to change the image of button on custom cell,given code changing the image on double click.I want to change image on single click(check and uncheck)

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

        SimpleTableCell *cell = (SimpleTableCell *)[tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
        if (cell == nil) 
        {
            NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"SimpleTableCell" owner:self options:nil];
            cell = [nib objectAtIndex:0];
        } 
        NSString *localArrayData = [LocalArray objectAtIndex:indexPath.row];
        cell.nameLabel.text =localArrayData;
        cell.CheckButton.tag=indexPath.row;
        [cell.CheckButton setImage:[UIImage imageNamed:@"checkU.png"] forState:UIControlStateNormal];
        [cell.CheckButton addTarget:self action:@selector(CheckButtonAction:)forControlEvents:UIControlEventTouchUpInside];
        return cell;
    }
- (void)CheckButtonAction:(id)sender
    {
        NSInteger row = [sender tag];
        NSIndexPath *indexPath = [NSIndexPath indexPathForRow:row inSection:0];
        SimpleTableCell *cell = [DataTable cellForRowAtIndexPath:indexPath];
        if(appDelegate.didSelect)
        {
            [cell.CheckButton setImage:[UIImage imageNamed:@"checkU.png"] forState:UIControlStateNormal];
            appDelegate.didSelect = FALSE;
        }
        else
        {
            [cell.CheckButton setImage:[UIImage imageNamed:@"checkS.png"] forState:UIControlStateNormal];
            appDelegate.didSelect = TRUE;
        }
    }

推荐答案

您需要执行以下操作

-(void)selectUser:(id)sender
{
    UIButton *button=(UIButton *) sender;
    NSIndexPath *indexpath = [NSIndexPath indexPathForRow:button.tag inSection:0];
    CustomTableViewCell *tappedCell = (CustomTableViewCell *)[yourTableView cellForRowAtIndexPath:indexpath];
    if ([tappedCell.selectButton.imageView.image isEqual:[UIImage imageNamed:@"green.png"]])
    {
        [tappedCell.selectButton setImage:[UIImage imageNamed:@"grey.png"] forState:UIControlStateNormal];
    }
    else
    {
        [tappedCell.selectButton setImage:[UIImage imageNamed:@"green.png"] forState:UIControlStateNormal];
    }
}

在cellForRowAtIndexPath方法中，您将单元格的indexPath设置为按钮标记

In cellForRowAtIndexPath method, you will set cell's indexPath as button tag

cell.selectButton.tag=indexPath.row;

并将选择器设置为按钮

[cell.selectButton addTarget:self action:@selector(selectUser:) forControlEvents:UIControlEventTouchUpInside];

这篇关于更改自定义单元格中按钮的图像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！