在单个 UITableCell 触摸上应用多个 UITableViewCellAccessoryCheckmark 的问题 [英] Issue with multiple UITableViewCellAccessoryCheckmark applied on single UITableCell touch

问题描述

所以我的 UITableView 中有很多单元格，并且在触摸单元格时，刚好在视野之外的其他单元格也应用了刻度.我相信这是因为单元格被重用或由于 dequeueReusableCellWithIdentifier:

so I have a lot of cells in my UITableView and on touching a cell, additional cells that are just out of view also have ticks applied. I believe this is because the cells are being reused or something due to dequeueReusableCellWithIdentifier:

这是我的代码:

    - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

            UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];

            if (cell.accessoryType == UITableViewCellAccessoryNone){
                [addPapersSelectedRowsArray addObject:[NSNumber numberWithInt:indexPath.row]];
                [cell setAccessoryType:UITableViewCellAccessoryCheckmark];

            }
            else if (cell.accessoryType == UITableViewCellAccessoryCheckmark){
                cell.accessoryType = UITableViewCellAccessoryNone;
                [addPapersSelectedRowsArray removeObject:[NSNumber numberWithInt:indexPath.row]];
            }


    }

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

    static NSString *CellIdentifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil) {

        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];

    }



    NSDictionary *currentPapersSecltion = [papersDataDictionary objectAtIndex:indexPath.row];
    [[cell textLabel] setText:[currentPapersSecltion objectForKey:@"Title"]]; 



   return cell;

}

也在 viewDidLoad 中从 .plist 中提取数据:

Also pulling data from a .plist in viewDidLoad:

 //Load papers data from the local plist
    papersDataDictionary = [[[NSDictionary alloc] initWithContentsOfFile:[[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent:@"papers.plist"]] objectForKey:@"Rows"];

有谁知道如何解决这个问题?谢谢各位！

Does anyone know how to fix this? Thanks guys!

德克斯

推荐答案

在 cellForRowAtIndexPath 中需要根据单元格是否被选中来设置复选标记.

In cellForRowAtIndexPath which you need to set your checkmark according to whether or not the cell has been selected.

if ([addPapersSelectedRowsArray containsObject:[NSNumber numberWithInt:[indexPath row]]]) {
        cell.accessoryType = UITableViewCellAccessoryCheckmark;
    }
    else {
        cell.accessoryType = UITableViewCellAccessoryNone;
    }
return cell;

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