EXC_BAD_ACCESS in heightForRowAtIndexPath iOS

Question

I\'m working on an application where I have a custom subclass of UITableViewCell. I want to make the cell\'s height dynamic based on the text inside it. I try do do that in

Answer 1

In this case you should call UITableViewDataSource method for getting cell for indexPath instead of cellForRowAtIndexPath: method of UITableView because at the moment when tableView: heightForRowAtIndexPath: first time called there are no any cells in tableView.

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath: (NSIndexPath *)indexPath {
    PostCell *cell = (PostCell *)[self tableView:tableView cellForRowAtIndexPath:indexPath];

    CGSize postTextSize;
    if (![cell.postText.text isEqualToString:@""]) {
    postTextSize = [cell.postText.text sizeWithFont:[UIFont systemFontOfSize:14] constrainedToSize:CGSizeMake(cell.postText.frame.size.width, 200)];
    } else {
        postTextSize = CGSizeMake(cell.postText.frame.size.width, 40);
    }

    return postTextSize.height + cell.userName.frame.size.height + 10;
}

It works and no causes EXC_BAD_ACCESS exception.