title: Condition not being triggered on first pick of pickerView
body: <p>I have a button and pickerView. When the button is pressed, the pickerView is displayed.</p>
  
  <p>Once a selection is made on the pickerView, the title of the button should change to "Show All", which it does, but never on the first iteration. It only changes on subsequent button presses.</p>
  
  <p>I'm sure I've missed something, but can't put my finger on what.</p>
  
  <pre><code>@IBOutlet weak var chooseSourcesBtnOut: UIButton!
  var isPicky = false  
  
  @IBAction func chooseSourcesBtn(_ sender: UIButton) {
  isPicky = !isPicky    
  
  if isPicky {
    if self.dropDown.isHidden {
      self.dropDown.isHidden = false
    }
  } else {
    if self.dropDown.isHidden == false {
      self.dropDown.isHidden = true
    }
    chooseSourcesBtnOut.titleLabel?.text = "Choose Source"
    tableView.reloadData()
  }
  }
  
  func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
      isPicky = true
      selection = pickerSourceRows[row]    
      chooseSourcesBtnOut.titleLabel?.textAlignment = .center
      chooseSourcesBtnOut.titleLabel?.text = "Show All"
      dropDown.isHidden = true
      tableView.reloadData()
    }
  </code></pre>