Categories: Known Issue | Java ME | S60 2nd Edition

This page was last modified 10:13, 23 August 2007.

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Platform: S60 2nd Edition Device: Nokia 6600

Description:

If a MIDlet is running any threads when exiting, the running threads may keep on hanging, thus reserving memory even after the MIDlet has exited.

Solution:

Before exiting an application with the Exit command or in some other graceful exit situation, all of the threads have to be killed. This can be done either in the destroyApp() method or in some other user-specified method that is called before exiting the MIDlet, for example, something like the following:

public void commandAction(Command c, Displayable d) {

    if (c == exitCommand) {

      // exit the MIDlet

      iRunning = false;

    }

  }

public void run()

  {

    while( iRunning )

    {

      repaint();

      serviceRepaints();

      try{ Thread.sleep(100); }catch( InterruptedException e ){}

    }

    MidletMain.quitApp();

  }