Question

I have a loop which parses JSON that is returned from a remote server, and I am able to loop through it, and get the values, but I am not sure how to set my UITableView with the data that comes back.

How do I reset the expected number of rows that the UITableView already thinks it will have? And how do I actually set the values?

Thanks!

Answer 1

Store the data in an array. Then reload the table once you have finished parsing the data, like so:

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    // when the array is empty, this will just return 0 and your table will 
    // be empty until your data is done downloading
    return [myArray count];
}

And in a method that parses your data:

-(void)parseFinished {
    // once the data finished downloading and parsing:
    [self.tableView reloadData];
}

To know which object you need to pass into a view controller or do whatever else you need to do with the data:

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    SomeViewController *viewController = [[SomeViewController alloc] initObject:[myArray objectAtIndexPath:indexPath]];
    [self.navigationController pushViewController:viewController animated:YES];
}