cell with imageview and button getting reused

Question

I have a table view with many cells. In the first cell I placed a UIImageView to hold a pic and next to it a button that will open up a popOver. My question is: Why is this cell is getting reused in spite of checking (cell==nil) while others are working fine.

The code is as below.

PS This is without using storyboard and xib only programatically.

 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{

    static NSString *CellIdentifier = @"Cell";

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil)
                         {
  cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
    }


    if (indexPath.section == 0)
    {


        if(indexPath.row==0)
        {

            if(self.imageView==nil)

           {            
           self.imageView  = [[UIImageView alloc] initWithFrame:CGRectMake(30, 2, 50, 40)];

            self.imageView.image = [UIImage imageNamed:@"user.png"];

            self.imageView.backgroundColor=[UIColor blackColor];

           }

            [cell.contentView addSubview:self.imageView];


             if(self.chooseImage==nil)
            {

            self.chooseImage = [[UIButton alloc]initWithFrame:CGRectMake(270, 10, 80, 30)];

            [self.chooseImage addTarget:self action:@selector(chooseImage:) forControlEvents:UIControlEventTouchUpInside];

            self.chooseImage.backgroundColor = [UIColor blackColor];

            [self.chooseImage setTitle:@"CHOOSE" forState:UIControlStateNormal];
            }

            [cell.contentView addSubview:self.chooseImage];

        }

Answer 1

First in code add at end of the method return cell; and use following code.

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{

    static NSString *CellIdentifier = @"Cell";

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil)
     {
          cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
        if(self.imageView==nil)

           {            
           self.imageView  = [[UIImageView alloc] initWithFrame:CGRectMake(30, 2, 50, 40)];

            self.imageView.image = [UIImage imageNamed:@"user.png"];

            self.imageView.backgroundColor=[UIColor blackColor];

           }
            [cell.contentView addSubview:self.imageView];
           if(self.chooseImage==nil)
            {

            self.chooseImage = [[UIButton alloc]initWithFrame:CGRectMake(270, 10, 80, 30)];

            [self.chooseImage addTarget:self action:@selector(chooseImage:) forControlEvents:UIControlEventTouchUpInside];

            self.chooseImage.backgroundColor = [UIColor blackColor];

            [self.chooseImage setTitle:@"CHOOSE" forState:UIControlStateNormal];
            }

            [cell.contentView addSubview:self.chooseImage];

    }


   return cell; // this line is not in your code so add this line.

}