dequeueReusableCellWithReuseIdentifier上的iOS SIGABRT [英] iOS SIGABRT on dequeueReusableCellWithReuseIdentifier

问题描述

我正在尝试使UICollectionView在我的应用程序中正常工作，由于某种原因，我一直在获取sigabrt.我收到的错误是

I'm trying to get a UICollectionView working in my application and for some reason I keep getting a sigabrt. The error I am getting is

* -[UICollectionView _dequeueReusableViewOfKind:withIdentifier:forIndexPath:]中的断言失败

* Assertion failure in -[UICollectionView _dequeueReusableViewOfKind:withIdentifier:forIndexPath:]

我已经四处搜寻，似乎在大多数情况下这与对registerClass forCellWithReuseIdentifier的忽略有关，但是我在视图加载方法中按要求进行此操作.我的代码如下:

I have googled around, and it seems like most of the time this is related to the neglecting to registerClass forCellWithReuseIdentifier, but I am doing this as required in the view did load method. My code is as follows:

 - (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.
    [self.collectionView registerClass:[UICollectionViewCell class] forCellWithReuseIdentifier:@"Cell"];
    [self.collectionView reloadData];
    self.refreshControl = [[UIRefreshControl alloc]init];
    [self.collectionView addSubview:self.refreshControl];

}

- (UICollectionViewCell *)collectionView:(UICollectionView *)cv cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    UICollectionViewCell *cell = [cv dequeueReusableCellWithReuseIdentifier:@"Cell " forIndexPath:indexPath];
    cell.backgroundColor = [UIColor whiteColor];
    return cell;
}

有人知道我可能会想念什么吗?

Does anyone know what I might be missing?

推荐答案

一个单元格标识符是"Cell"&另一个是单元格".即单元格后的多余空间，将其删除.

one cell identifier is "Cell" & another one is "Cell ". i.e. extra space after cell, remove it.

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