UISegmentedControl deselect (make none of the segments selected)
I guess you try to create a momentary selection in segmented control. In interface builder set the segmentedcontrol to momentary. Or in code you can do:
menu.momentary = YES;
Setting the segmentedControl to .momentary = YES
changes the way the user can interact with the segmentedControl. If you want to have nothing selected initially when the page loads but have segmentedControl behave the same after a selection is made by the user then you will want something more like this:
Swift 4 solution:
@IBOutlet weak var segmentedControl: UISegmentedControl!
self.segmentedControl.selectedSegmentIndex = UISegmentedControlNoSegment
Swift 5.1:
self.segmentedControl.selectedSegmentIndex = UISegmentedControl.noSegment
The right way to do this is:
[menu setSelectedSegmentIndex:UISegmentedControlNoSegment];
Edit:
Swift 5:
menu.selectedSegmentIndex = UISegmentedControl.noSegment