didSelectItemAtIndexPath：有時不叫

Question

我有一個奇怪的行爲，我的UICollectionView。有時didSelectItemAtIndexPath:未被調用。但是，如果我選擇另一個項目，他們可以點擊上一個項目。

1. 代表沒問題。
2. 手勢識別器被禁用
3. UICollectionView在前面。這

我的代碼之前沒有：

- (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"); 
} 

哪裏可能是錯誤的？在此先感謝

手勢識別器現在被禁用。我已經設置斷點，他們沒有僱用

Answer 1

請確保調用適當的CollectionView委託

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

會提醒

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