Switching Views/Popup Window

I'm having a little trouble switching views and wondering anyone can help. Basically the initial view is a ListActivity. On this view the user can press the menu button which triggers a database call and when the result comes back (either a number or a null) I require the view to be altered to one of two views (a numberview and a nullview so to speak).

I've had some success by doing -

Intent myIntent = new Intent(this, numberview.class);
this.startActivity(myIntent);

Now this works however I can't see a way to pass the number retrieved from the database into the开发者_开发知识库 new view.

I also tried to use the PopUpWindow class but to no avail, all the examples I found only had examples for the Activity (not ListActivity) and some of the mentioned methods don't exist. Can I get some help/advice at all please?

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Try this:

Intent myIntent = new Intent(this, numberview.class);
myIntent.putExtra("number", num);
this.startActivity(myIntent);

....

And in your second activity:

Integer number = getIntent().getExtra("number");