How to call Exit Command when I press Key # in Lwuit Mobile Application?

问题

Can I assign the Exit Command to the # key in an Lwuit Application? When I press the key #, the Exit command should be called automatically and exit the application.

回答1:

You should listen for a KeyPress or keyReleased event on the form with the keycode for # and exitApplication when the # key is pressed.

protected void keyPressed(int key)
{
    System.out.println("Key Pressed");

    if(key==52) //change 52 to match keyCode for # key 
    {
      Display.getInstance().exitApplication();
    }
}

来源：https://stackoverflow.com/questions/8834441/how-to-call-exit-command-when-i-press-key-in-lwuit-mobile-application