按钮单击方法在集合视图中不起作用

Question

我正在创建一个相机应用程序。我在集合视图中显示捕获的图片。我放了一个按钮来删除特定的图片。在运行时，我能够看到要删除的按钮，但是如果我单击该按钮则不会执行任何操作。

-(UICollectionViewCell *)collectionView:(UICollectionView *)
collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    CollectionViewCell *Cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"Cell" forIndexPath:indexPath];

    Cell.self.image_View.image=[self.imageArray objectAtIndex:indexPath.row];

    UIButton *deleteButton = [[UIButton alloc]init];
    deleteButton.frame = CGRectMake(80, 0, 20, 20);
    //deleteButton.backgroundColor = [UIColor redColor];
    [deleteButton setImage:[UIImage imageNamed:@"delete.png"] forState:UIControlStateNormal];
    [deleteButton setTag:indexPath.row];

    [deleteButton addTarget:self action:@selector(delete:) forControlEvents:UIControlEventTouchUpInside];

    [Cell.self.image_View addSubview:deleteButton];

    return Cell;
 }

 -(void) delete:(UIButton*)sender{
      UIButton *btn = (UIButton *)sender;
      [self.imageArray removeObjectAtIndex:btn.tag];
      //reload your collectionview here
 }

任何人都可以帮助我吗？