在uitableviewcell中使用uicollectionview [英] Use uicollectionview inside uitableviewcell

问题描述

我无法解决下一个问题。

I can't solve next problem.

我想显示20个表格单元格，每个单元格包含一个唯一的 UICollectionView 。

I want to display 20 table cells, each contains a unique UICollectionView.

< img src =https://i.stack.imgur.com/pUp5q.pngalt =2>

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
    {
        NSDictionary *package=[_packageList objectAtIndex:indexPath.row];
        static NSString *CellIdentifier = @"package";
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
        UICollectionView *cellImageCollection=(UICollectionView *)[cell viewWithTag:9];
        cellImageCollection.restorationIdentifier=[NSString stringWithFormat:@"%li", (long)indexPath.row, nil];

        cellTracking.text=[NSString stringWithFormat:@"Row #%li",(long)indexPath.row];
        return cell;
    }


-(NSInteger) collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
    int row=[collectionView.restorationIdentifier intValue];
    return [[[_packages objectAtIndex:row] valueForKey:@"imageGallery"] count];
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
    int row=[collectionView.restorationIdentifier intValue];
    NSString *imgStrLink=[[[_packages objectAtIndex:row] valueForKey:@"imageGallery"] objectAtIndex:indexPath.row];
    UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"ImageID" forIndexPath:indexPath];
    UIImageView *imageView=(UIImageView *)[cell viewWithTag:2];
    imageView.image=....;
    return cell;
}

函数 tableView：cellForRowAtIndexPath：被调用20次，但是 collectionView：numberOfItemsInSection：和 collectionView：cellForItemAtIndexPath：只有4次。
如屏幕截图所示 UICollectionView 每隔四行重复一次。

Function tableView:cellForRowAtIndexPath: is called 20 times, but collectionView:numberOfItemsInSection: and collectionView:cellForItemAtIndexPath: only 4 times. As seen in the screenshots UICollectionView is repeated every fourth line.

我的错是什么？

推荐答案

我也遇到了这个问题，我遇到这个问题的原因是因为tableview和collectionView的数据源和委托都是相同的父视图控制器。

I too faced this problem, the reason I got this problem was because both datasource and delegates for the tableview and collectionView were to the same parent viewcontroller.

当我将collectionView的数据源和委托更改为另一个视图说明ParentView时，它开始为我工作，我将collectionView添加到此ParentView然后最后将ParentView添加为单元格的conentView。

It started working for me when I changed the datasource and delegate of the collectionView to another View say ParentView, and I added the collectionView to this ParentView and then finally added ParentView as conentView of the cell.

我之前的回答指出了两个不错的教程被有人说我应该在这里包含内容的基本部分（因为链接将来可能无效） ...但我不能这样做，因为那些是由教程所有者编写的代码，而且整个代码也是必不可少的:)，所以现在我给出了源代码的链接......

My previous answer which points to two nice tutorials was deleted by someone saying that I should include the essential parts of the content here(because the link may become invalid in future)...but I cannot do that as those are codes written by the tutorial owners and also the whole codes are essential too :), so now I am giving the link to the source code...

Horizo​​ntalCollectionViews

AFTabledCollectionView

-anoop

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