Vibrate before closing the Windows Phone 7 message box

Question

I have a timer application and I want the phone vibration to be completed. At the moment, I can play the sound until the OK button is pressed, but it only vibrates once. How can I repeat the vibration until the user clicks OK?

This is my current code.

SoundEffectInstance alarmSound = PlaySound(@"Alarms/"+alarmSoundString);

VibrateController vibrate = VibrateController.Default;

vibrate.Start(new TimeSpan(0,0,0,0,1000));

MessageBoxResult alarmBox = MessageBox.Show("Press OK to stop alarm", "Timer Finished", MessageBoxButton.OK);

if (alarmBox == MessageBoxResult.OK)
{
    alarmSound.Stop();
    vibrate.Stop();
}

UPDATE: I tried Joe's answer, which works if I don't call. MessageBox.Show()It seems to stop at that moment until OK is pressed.

Answer 1

VibrateController.Start(Timespan) , , 5 , , . . :

, , Messagebox, DispatcherTimer . Messagebox . .

public partial class MainPage : PhoneApplicationPage
{
    TimeSpan vibrateDuration = new TimeSpan(0, 0, 0, 0, 1000);
    System.Threading.Timer timer;
    VibrateController vibrate = VibrateController.Default;
    int timerInterval = 1300;
    SoundEffectInstance alarmSound = PlaySound(@"Alarms/"+alarmSoundString);
    TimeSpan alramDuration; //used to make it timeout after a while

    public MainPage()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, RoutedEventArgs e)
    {
        timer = new Timer(new TimerCallback(timer_Tick), null, 0, timerInterval);
        alramDuration = TimeSpan.FromSeconds(0);
        alarmSound.Play();
        MessageBoxResult alarmBox = MessageBox.Show("Press OK to stop alarm", "Timer Finished", MessageBoxButton.OK);

        if (alarmBox == MessageBoxResult.OK)
        {
            StopAll();
        }
    }

    void timer_Tick(object sender)
    {
        //keep track of how long it has been running
        //stop if it has gone too long
        //otheriwse restart

        alramDuration = alramDuration.Add(TimeSpan.FromMilliseconds(timerInterval)); 
        if (alramDuration.TotalMinutes > 1)
            StopAll();
        else
            vibrate.Start(vibrateDuration);
    }

    void StopAll()
    {
        timer.Change(Timeout.Infinite, Timeout.Infinite);
        vibrate.Stop();
        alarmSound.Stop();
    }
}

System.Threading.Timer . , API. Start() and Stop() . , 0. 1,3 , Change(), Timeout.Infinite

:

• vibrate.Start(vibrateDuration) tick. , .
• Per Mystere Man, -. - .

Answer 2

SoundEffectInstance alarmSound = PlaySound(@"Alarms/"+alarmSoundString);

VibrateController vibrate = VibrateController.Default;

var vibrationLength = 1000;
var startTime = DateTime.Now;
vibrate.Start(new TimeSpan(0,0,0,0,vibrationLength));

MessageBoxResult alarmBox = MessageBox.Show("Press OK to stop alarm", "Timer Finished", MessageBoxButton.OK);
var ok = false;

While (!ok){
  if (alarmBox == MessageBoxResult.OK)
  {
    ok = true;
  }
  else{
     if(startTime.AddMilliseconds(vibrationLength * 1.2) < DateTime.Now)
     {
        startTime = DateTimne.Now;
        vibrate.Start(new TimeSpan(0,0,0,0,vibrationLength));
     }
  }
}

alarmSound.Stop();
vibrate.Stop();

Windows, , . , , , , .

, , AddMilliseconds , , .

,

public class buzzz
{

   MessageBoxResult alarmBox;
   DispatchTimer alarmTimer = new DispatchTimer();
   var vibrationLength = 1000.0;
   var timerIncrease = 1.2;
   VibrateController vibrate = VibrateController.Default;

   public buzz()
   {
      alarmTimer.Interval = TimeSpan.FromMillseconds(vibrationLegnth * timerIncrease);
      alarmTimer.Tick += alarmTimer_Tick
   }
   public void startBuzz()
   {
       SoundEffectInstance alarmSound = PlaySound(@"Alarms/"+alarmSoundString);
       vibrate.Start(new TimeSpan(0,0,0,0,vibrationLength));
       alarmTimer.Start();
       alarmBox = MessageBox.Show("Press OK to stop alarm", "Timer Finished", MessageBoxButton.OK);
    }

    void alarmTimer_Tick(object sender, EventArgs e)
        {
           if(alarmBox == MessageBoxResult.OK)
           {
              alarmTimer.Stop();
              vibrate.Stop();
           }
           else
           {
               vibrate.Start(new TimeSpan(0,0,0,0,vibrationLength));
           }
        }
}