tableView//collectionView加载时的动画

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath
*)indexPath {

ProjectIntroViewCell *cell = [collectionView
dequeueReusableCellWithReuseIdentifier:COLLECTIONVIEW_CELLID
forIndexPath:indexPath];

[cell updateUIWithModel:model];

//    cell.layer.transform = CATransform3DMakeScale(0.1, 0.1, 1);

//    //设置动画时间为0.25秒,xy方向缩放的最终值为1

//    [UIView animateWithDuration:0.25 animations:^{

//        cell.layer.transform = CATransform3DMakeScale(1, 1, 1);

//    }];

return cell;

}