How to set an UIActivityIndicatorView when loading a UITableViewCell

Question

I have two UITableViewControllers, A and B. When I tap one cell in table A, I will use UINavigationController to push table view controller B. But

Answer 1

This code below will display a spinner at the footer of the table view if more data is available on the server. You can change it according to your logic of fetching data from server.

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
     /* set cell attributes here */
     NSInteger lastSectionIndex = [tableView numberOfSections] - 1;
     NSInteger lastRowIndex = [tableView numberOfRowsInSection:lastSectionIndex] - 1;
     if ((indexPath.section == lastSectionIndex) && (indexPath.row == lastRowIndex)) {
         if(isMoreDataAvailableOnserver)
         {
             [self showSpinnerAtFooter];
             [self getMoreDataFromServer];
         }
         else {
             [self hideSpinnerAtFooter];
         }
     }
     return cell;
}

- (void)hideSpinnerAtFooter {
    self.tableView.tableFooterView = nil;
}

- (void)showSpinnerAtFooter {
    UIActivityIndicatorView *spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
    [spinner startAnimating];
    spinner.frame = CGRectMake(0, 0, 320, 44);
    self.tableView.tableFooterView = spinner;
}