didSelectItemAtIndexPath：有时不调用

Question

我的UICollectionView有一种奇怪的行为。有时didSelectItemAtIndexPath:没有被调用。但是，如果我选择其他项目，我可以点击上一项。

1. 代表们还可以。
2. 手势识别器已停用
3. UICollectionView在前面。此前没有任何内容

我的代码：

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
    if (self.activeCollectionViewObjects.count > section) {
            NSArray *array = self.activeCollectionViewObjects[section];
            return array.count;
        }
    }
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    VenueLayoutCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:kVenueLayoutCellReuseIdentifier forIndexPath:indexPath];
    self.activeCollectionViewCellsDictionary[indexPath] = cell;
    if (self.activeCollectionViewObjects.count > indexPath.section) {
        NSArray *rows = self.activeCollectionViewObjects[indexPath.section];
        if (rows.count > indexPath.row) {
            if ([rows[indexPath.row] isKindOfClass:[VenueLayoutCellObject class]]) {
                VenueLayoutCellObject *object = rows[indexPath.row];
                cell.cellObject = object;

            }
        }
    }
    [cell layoutIfNeeded];
    return cell;
}


- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
   NSLog(@"hello");
}

我哪里错了？提前致谢

手势识别器现已停用。我设置了断点，他们不雇用

Answer 1

确保调用正确的CollectionView委托

- (void)collectionView:(UICollectionView *)collectionView     didSelectItemAtIndexPath:(NSIndexPath *)indexPath;

您可能正在致电

- (void)collectionView:(UICollectionView *)collectionView didDeselectItemAtIndexPath:(NSIndexPath *)indexPath;