Infinite Scroll on iOS with Swift

Question

I'm an iOS newbie and I would like to know how to detect when the user scrolls and reaches the bottom of an UITableView so I can load new data into the table.

I would also like to know where such a method should be implemented (the tableview's class or the view controller in which this tableview exists) Cheers!

Answer 1

You can use -(void) tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath to and check if the last cell will be shown in the TableView's data source.

Answer 2

iOS' TableViewController takes care of that automatically. It asks its datasource only for the currently visible rows of the table (tableview.cellForRowAtIndexPath)

See the documentation for the UITableViewDatasource Protocol Reference