- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
     info = [array objectAtIndex:indexPath.row];
    static NSString *cellIdentifier = @"empCell";
    UICollectionViewCell *cell = [collectionView   dequeueReusableCellWithReuseIdentifier:cellIdentifier forIndexPath:indexPath];
    titlebutton = (UIButton *)[cell viewWithTag:100];
    [titlebutton addTarget:self action:@selector(onClick:) forControlEvents:UIControlEventTouchUpInside];
 [titlebutton setTitle:info.name forState:UIControlStateNormal];
    return cell;
}