Swift-use of segmented selection controls (Uisegmentedcontrol)-Basic usage

1, select the control's creation and listen for the control selection value 

Import UIKit
 
Class ViewController: UIViewController {
     
     Override func viewDidLoad() {
         super.viewDidLoad()
         
         //Options can be pictures in addition to text
         Let items = ["option one", "option two", UIImage(named: "g1")!] as [Any]
         Let segmented = UISegmentedControl(items:items)
         Segmented.center = self.view.center
         segmented.selectedSegmentIndex = 1 //The second item is selected by default
         segmented.addTarget(self, action: #selector(ViewController.segmentDidchange(_:)),
                             For: .valueChanged) //Add value change listener
         self.view.addSubview(segmented)
     }
     
     Func segmentDidchange(_ segmented:UISegmentedControl){
         / / Get the index of the option
         Print(segmented.selectedSegmentIndex)
         / / Get the selected text
         Print(segmented.titleForSegment(at: segmented.selectedSegmentIndex))
     }
}

2, select the selection of the control add and remove 

/ / Add text options
segmented.insertSegment(withTitle: "new option", at:1, animated:true);
/ / Add image options
segmented.insertSegment(with: UIImage(named:"icon")!, at:1, animated: true)
// remove option
segmented.removeSegment(at: 1, animated:true)

3, modify the option color (including picture options) 

 segmented.tintcolor= uicolor. Redcolor () 

4, modify option Text 

segmented.settitle ("Swfit", forsegmentatindex:1)

5, modify the option picture 

(1) The following code image will automatically turn blue

segmented.setImage(UIImage(named:"icon"), forSegmentAt:2)

(2) Use the code below to keep the original color

segmented.setImage(UIImage(named:"icon")?.withRenderingMode(.alwaysOriginal), forSegmentAt:2)

6, modify the option content offset location 

segmented.setContentOffset(CGSize(width:10, height:7), forSegmentAt:1)