Essential iOS

Creating UISegmentedControl via code

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  1. Create new instance of UISegmentedControl filled with 3 items (segments): 
let mySegmentedControl = UISegmentedControl (items: ["One", "Two", "Three"])
  1. Setup frame; 
mySegmentedControl.frame = CGRect(x: 0.0, y: 0.0, width: 300, height: 50)
  1. Make default selection (not that segments are indexed by 0): 
mySegmentedControl.selectedSegmentIndex = 0
  1. Configure target: 
mySegmentedControl.addTarget(self, action: #selector(segmentedValueChanged(_:)), for: .valueChanged)

5 Handle value changed: 

func segmentedValueChanged(_ sender:UISegmentedControl!) {
    print("Selected Segment Index is : \(sender.selectedSegmentIndex)")
}
  1. Add UISegmentedControl to views hierarchy 
yourView.addSubview(mySegmentedControl)
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