Question

I am currently working on a mobile application with VS2008 which has a capacbility of periodically checking if the desired bluetooth device is in range or not. At the moment, I am using System.windows.form.Timer to do this. However, I have found that it will slow down the application, even worse, it will crash sometimes.

Does anyone have any better idea of how to do periodically checking without using the System.windows.form.timer? I am currently using 32 feets for the bluetooth.

Thanks for any helps in advance.

Regards,

Charles

Answer 1

Add a background thread that sleeps for X amount of time (you choose how long) then every once in a while (based on how long the thread sleeps) it will run (wake up and execute), check if the bluetooth is in range and give you some form of feed back, then it will go to sleep again.

Summed up

1. Thread activates
2. Checks if bluetooth is in range
3. Gives you feed back

4. Thread goes to sleep again

   while (true)
   {
      //starts a new thread
      Thread blueToothThread = new Thread(new ThreadStart(menu.Run));
   }
   
   //the threads method named Run
   public void Run()
   {
       // Perform the bluetooth check here
   
       Console.WriteLine("You will see this only once every 8 seconds");
       //choose how long thread sleeps here
       Thread.Sleep(8000);
   }