How do I use a UISegmentedControl to switch views?

Question

I'm trying to figure out how to use the different states of a UISegmentedControl to switch views, similar to how Apple does it in the App Store when switiching between 'Top Paid' and 'Top Free'.

Answer 1

The simplest approach is to have two views that you can toggle their visibility to indicate which view has been selected. Here is some sample code on how it can be done, definitely not an optimized way to handle the views but just to demonstrate how you can use the UISegmentControl to toggle the visible view:

- (IBAction)segmentSwitch:(id)sender {
  UISegmentedControl *segmentedControl = (UISegmentedControl *) sender;
  NSInteger selectedSegment = segmentedControl.selectedSegmentIndex;

  if (selectedSegment == 0) {
    //toggle the correct view to be visible
    [firstView setHidden:NO];
    [secondView setHidden:YES];
  }
  else{
    //toggle the correct view to be visible
    [firstView setHidden:YES];
    [secondView setHidden:NO];
  }
}

You can of course further re-factor the code to hide/show the right view.