UICollectionView第一个单元格比tvOS上的其他单元格加载更大

所以我有一个UICollectionView，我已经做了这样的事情，当焦点改变到新的单元格时，单元格中的图像展开。由于某种原因，尽管每次UICollectionView加载第一个单元比其余的单元大（见下面的截图）。我怎样才能阻止它做到这一点？UICollectionView第一个单元格比tvOS上的其他单元格加载更大

我对焦点的改变过形象代码：

- (void)collectionView:(UICollectionView *)collectionView didUpdateFocusInContext:(UICollectionViewFocusUpdateContext *)context withAnimationCoordinator:(UIFocusAnimationCoordinator *)coordinator { 

    NSIndexPath *previousIndexPath = context.previouslyFocusedIndexPath; 
    NSIndexPath *indexPath = context.nextFocusedIndexPath; 

    TrophyCollectionViewCell *previousCell = (TrophyCollectionViewCell *)[collectionView cellForItemAtIndexPath:previousIndexPath]; 
    TrophyCollectionViewCell *cell = (TrophyCollectionViewCell *)[collectionView cellForItemAtIndexPath:indexPath]; 

    [UIView animateWithDuration:0.3 animations:^{ 

     if (previousCell.trophyImageView != nil) { 
      previousCell.trophyImageView.transform = CGAffineTransformMakeScale(1.0f, 1.0f); 
     } 

     if (cell.trophyImageView != nil) { 
      cell.trophyImageView.transform = CGAffineTransformMakeScale(1.2f, 1.2f); 
     } 

     if (previousCell.resetImageView != nil) { 
      previousCell.resetImageView.transform = CGAffineTransformMakeScale(1.0f, 1.0f); 
     } 

     if (cell.resetImageView != nil) { 
      cell.resetImageView.transform = CGAffineTransformMakeScale(1.2f, 1.2f); 
     } 

    }]; 

}

除了这个我已经影响了细胞的大小没有其他代码。

来源

2017-04-04 william205