在UITableViewstylePlain中展开UITableView单元格 [英] Expand UITableView cell in UITableViewstylePlain

问题描述

我想在它的点击上展开tableview单元格。有一个tableview，其中两个单元格是可扩展的，而另一些则不是。我需要当我点击可扩展单元格时，它应该显示它下面的单元格，再次点击它应该隐藏。下面有一张图片来定义这个。

如何实现此功能，请指导以上内容。
提前致谢。

解决方案

并且这个解决方案还可以帮助您了解如何管理Expandable TableView

I want to expand tableview cell on it's click. There is a tableview in which two cells are expandable and others are not. I need when i click on expandable cell it should show cells under it and on clicking again it should hide. There is a image below defining this.

How can i achieve this functionality, please guide for the above. Thanks in advance.

解决方案

Here is the complete Tutorial with Expandable UITableView

Here’s the code snip for that.

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    if ([self tableView:tableView canCollapseSection:indexPath.section])
    {
        if (!indexPath.row)
        {
            // only first row toggles exapand/collapse
            [tableView deselectRowAtIndexPath:indexPath animated:YES];

            NSInteger section = indexPath.section;
            BOOL currentlyExpanded = [expandedSections containsIndex:section];
            NSInteger rows;

            NSMutableArray *tmpArray = [NSMutableArray array];

            if (currentlyExpanded)
            {
                rows = [self tableView:tableView numberOfRowsInSection:section];
                [expandedSections removeIndex:section];

            }
            else
            {
                [expandedSections addIndex:section];
                rows = [self tableView:tableView numberOfRowsInSection:section];
            }

            for (int i=1; i<rows; i++)
            {
                NSIndexPath *tmpIndexPath = [NSIndexPath indexPathForRow:i 
                                                               inSection:section];
                [tmpArray addObject:tmpIndexPath];
            }

            UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];

            if (currentlyExpanded)
            {
                [tableView deleteRowsAtIndexPaths:tmpArray 
                                 withRowAnimation:UITableViewRowAnimationTop];

                cell.accessoryView = [DTCustomColoredAccessory accessoryWithColor:[UIColor grayColor] type:DTCustomColoredAccessoryTypeDown];

            }
            else
            {
                [tableView insertRowsAtIndexPaths:tmpArray 
                                 withRowAnimation:UITableViewRowAnimationTop];
                cell.accessoryView =  [DTCustomColoredAccessory accessoryWithColor:[UIColor grayColor] type:DTCustomColoredAccessoryTypeUp];

            }
        }
    }
}

as shown below picture

This and this one solution also help you to understand how to manage Expandable TableView

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