How to use Reusable Cells in uitableview for IOS

Question

Ok. I cant seem to get a firm understanding on how tableviews work. Would someone please explain to me how cells are reused in tableviews especially when scrolling? One of t

Answer 1

I need to see your code, but i can say u didn't change your model or you changed it all of rows in your array.

You can use some class extended from UITableViewCell and in "cellForRowAtIndexPath" method use it as reusable cell.

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
 {
   MyCell *cell = [tableView dequeueReusableCellWithIdentifier:@"MyCell"];


    // Configure the cell...
    MyModel *model = [_models objectAtIndex:indexPath.row];
    cell.nameLabel.text = model.name;
    cell.image.image = model.image;
    cell.likeButton.text = model.likeButtonText;
    return cell;
 } 

and then in your "didSelectRowAtIndexPath" method change "model.likeButtonText".

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
   MyCell cell* =     [tableView cellForRowAtIndexPath:indexPath];
   MyModel *model = [_models objectAtIndex:indexPath.row];
   model.likeButtonText = [model.likeButtonText isEqual:@"like"]?@"unlike":@like;
   cell.likeButton.text = model.likeButtonText;
}

This will update your cell