ios添加UICollectionView报错

我添加了UICollectionView到view中。然后报错了。

错误：

"NSInvalidArgumentException', reason: '-[NSIndexPath reuseIdentifier]: unrecognized selector sent to instance"

方法：

-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
    return 1;
}

-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *identifier = @"CellID";
    UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:identifier forIndexPath:indexPath];

    UIImageView *imageView = (UIImageView *)[cell viewWithTag:10];
    imageView.image = [UIImage imageNamed:@"V.jpg"];
}

-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
    return 1;
}

你如果是代码创建的话 要注册cell kcellID是你的identifier
[collectionView registerClass:[Cell class] forCellWithReuseIdentifier:kCellID];

如果是storyboard创建的话

在storyboard中选中cell 把 view cell中有个identifier改成你的identifier
你试试看