title: How to set a time value for a WKInterfaceTimer using a Slider
body: <p>I am creating a test app to get used to WatchKit, and was wondering if it possible to use a slider to set a countdown time. I have this so far:</p>
  
  <pre><code>import WatchKit
  import Foundation
  
  class InterfaceController: WKInterfaceController {
  
  @IBOutlet weak var footText: WKInterfaceLabel!
  @IBOutlet weak var timerOutput: WKInterfaceTimer!
  
  @IBAction func button() {
  }
  @IBAction func timeSlider(value: Float) {
  var myValue = String(format: "Value is %f", value)
      func setAttributedText(attributedText: NSAttributedString?) {}
  
  }
  var testtest = "This is a test"
  
  override func awakeWithContext(context: AnyObject?) {
      super.awakeWithContext(context)
  
      // Configure interface objects here.
  }
  
  override func willActivate() {
      // This method is called when watch view controller is about to be visible to user
      super.willActivate()
  }
  
  override func didDeactivate() {
      // This method is called when watch view controller is no longer visible
      super.didDeactivate()
  }
  
  }
  </code></pre>
  
  <p>Is it possible to change the value of the timer?</p>