class BasicPickerVC: UIViewController, UIPickerViewDataSource, UIPickerViewDelegate {
	
	let picker = UIPickerView()
	
	override func viewDidLoad() {
		super.viewDidLoad()
		
		self.view.addSubview(self.picker)

		// set frame near top-left
		picker.frame = .init(x: 60.0, y: 80.0, width: 240.0, height: 160.0)
		
		// we don't want any resizing o ndevice rotation
		picker.autoresizingMask = []
		
		// so we can see its frame
		picker.backgroundColor = .yellow

		self.picker.delegate = self
		self.picker.dataSource = self
	}
	
	override func viewSafeAreaInsetsDidChange() {
		super.viewSafeAreaInsetsDidChange()
		//This gets called everytime the device rotates, causing the picker view to redraw and reload all components. Trying to avoid this method being called.
		
		print ("viewSafeAreaInsetsDidChange")
		print (self.view.safeAreaInsets)
	}

	func numberOfComponents(in pickerView: UIPickerView) -> Int {
		print("num components: 1")
		return 1
	}
	
	func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
		print("num rows: 30")
		return 30
	}
	
	func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
		print("Title for Row:", row)
		return "Row: \(row)"
	}
	
}