SWIFT – Change the map type (mixed, satellite) by segmentation control

@IBAction func segmentedControlAction(sender: UISegmentedControl!) {

 if sender .selectedSegmentIndex == 0{

 mapView.mapType = MKMapType.Standard
 }
 else if sender.selectedSegmentIndex == 1{

 mapView.mapType = MKMapType.Satellite
 }
 else if sender.selectedSegmentIndex == 3{

 mapView.mapType = MKMapType.Hybrid
 }
}

@IBAction func segmentedControlAction(sender: UISegmentedControl!) {
 switch (sender.selectedSegmentIndex) {
 c ase 0:
 mapView.mapType = .Standard
 case 1:
 mapView.mapType = .Satellite
 default:
 mapView.mapType = .Hybrid
 }
}

@IBAction func mapTypeSegmentSelected(_ sender: UISegmentedControl) {
 switch sender.selectedSegmentIndex {
 case 0:
 mapView.mapType = .normal
 case 1:
 mapView.mapType = .satellite
 default:
 mapView.mapType = .hybrid
 }
 }

Me I am trying to use the segment control button to change the map type, I hope it can use 3 options to change the map type: standard, satellite and hybrid. So far, I have this code but once a different map type is selected, nothing happens:

@IBAction func segmentedControlAction(sender: UISegmentedControl!) {

 if sender.selectedSegmentIndex == 0{

 mapView.mapType = MKMapType.Standard
 }
 else if sender.selectedSegmentIndex == 1{

 mapView.mapType = MKMapType.Satellite
 }
 else if sender.selectedSegmentIndex == 3{

 mapView.mapType = MKMapType.Hybrid
 }
} 

I am new to Swift and Xcode so I appreciate any help:)

Thank you

First of all, make sure to The method is called when the segmented control selection changes. It is easy to forget the connection socket method. Once this is confirmed, remember that the map data is loaded asynchronously, so you may not see it change immediately after selecting another mode. However, Using the code you posted, you will never see the .Hybrid type, because the selectedSegmentIndex in the 3-segment control will never be 3.

The more concise way to implement this method is:< /p>

@IBAction func segmentedControlAction(sender: UISegmentedControl!) {
 switch (sender.selectedSegmentIndex) {
 case 0:
 mapView.mapType = .Standard
 case 1:
 mapView.mapType = .Satellite
 default:
 mapView.mapType = .Hybrid
 }
}

< p>Please note that Swift does not need a break statement at the end of each case.

Edit: Swift 4.1

@IBAction func mapTypeSegmentSelected(_ sender : UISegmentedControl) {
 switch sender.selectedSegmentIndex {
 case 0:
 mapView .mapType = .normal
 case 1:
 mapView.mapType = .satellite
 default:
 mapView.mapType = .hybrid
 }
 }