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I have a J2ME project in Eclipse with Nokia SDK plugin, in which I use a Canvas skin. The users will press a key to quit the application.
But I don't really know the way to close after key pressing event.
Help me, please!
Posted

One simple way (which may not be very elegant, depending on how you have written your midlet): When you create your canvas, do it something like this:

in your Midlet, pass a reference to the Midlet itself to your Canvas constructor:
MyCanvas theCanvas = new MyCanvas(this, ...);

in the Canvas constructor, save the Midlet reference:
class MyCanvas extends Canvas implements CommandListener {
  MyMidlet theMidlet;

  public MyCanvas(MyMidlet m, ...) {
    this.theMidlet = m;
    ...
  }

...
}

Then, when you want to close the midlet from keyPressed in MyCanvas,
just call theMidlet.destroyApp()

Peter
 
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v2
In your keyPressed handler, just call destroyApp(true).
destroyApp is what the system calls if your midlet is terminated externally, and it should do any cleanup required and call notifyDestroyed().
 
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You know, keyPressed í available just inside the Canvas class. But the destroyApp and notifyDestroyed are methods of MIDlet class.
How can we call destroyApp(true) in my keyPressed handler?
Please explain me more clearly.
 
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Thank you a lot, Peter. Your way is really good to solve my problem.
 
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Comments
Peter_in_2780 24-Aug-10 18:09pm    
If you like it, vote for my answer above, and ACCEPT it so your question shows up as answered.
thankx peter :D.. i got stuck with the same problem but now everything is working fine :D
 
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