[maokejackson]

I created 3 buttons that launch same application by passing different parameters. How do I determine if the application is already running so that I can avoid multiple instances of application?

private void launchApplication(String application)
{
	ApplicationManager appManager = ApplicationManager.getApplicationManager();
	try
	{
		appManager.launch(application);
	}
	catch (ApplicationManagerException ame)
	{
		Dialog.alert("Error: " + ame.getMessage());
	}
}

[akosnitzky]

Wirelessly posted (Verizon 8830)

I press Alt + ESC. Am I misunderstanding your question?

[hrbuckley]

Have you tried to get multiple instances running concurrently? You can't do it from the home screen, it may not be possible.

If it is, then I would suggest you use a persistent store to keep the application state, and check out synchronized methods.

[simon.hain]

ApplicationManager.getProcessId(ApplicationDescrip tor descriptor) returns -1 if the application is not running.

you can also use runtimestore or similar stuff to communicate.

[maokejackson]

thanks simon, I've done it using ApplicationManager.getProcessId().

private void launchApplication(String application)
{
	ApplicationManager appManager = ApplicationManager.getApplicationManager();

	try
	{
		ApplicationDescriptor[] apps = appManager.getVisibleApplications();
		int processId = -1;

		for (int i = 0; i < apps.length; i++)
		{
			if (apps[i].getName().equals(Module.name))
			{
				processId = appManager.getProcessId(apps[i]);
				break;
			}
		}

		if (processId > 0)
		{
			appManager.requestForeground(processId);
		}
		else
		{
			appManager.launch(application);
		}
	}
	catch (ApplicationManagerException ame)
	{
		Dialog.alert("Error: " + ame.getMessage());
	}
}

[maokejackson]

I have new question, how do I kill a process programatically instead of bring it to foreground and close myself.

[simon.hain]

this is not possible. you can, however, implement globaleventlistener and send a termination command as a global event.