Question

I need to have a TabHost consisting of two tabs where each tab represented by a separate Activity. Each Activity has its own data fields and methods to operate on them. I want each tab to have its own menu and for this menu I need onOptionsItemSelected() method to be a part of the class to make it able to invoke methods of this class.

What the best approach would it be to implement this?

I’ve started with menu definition in the class which represents TabHost, but then faced with a problem I don’t have an access to methods of my Activities. I decided to make methods of Activities static to have access to them but finally I would need to define almost all fields of these Activities as static which doesn’t seem to be a good solution for me.

Update:

---

It became much easier then I thought. In onOptionsItemSelected() you can get the current Activity of your opened tab.

SecondActivity sa = (SecondActivity)this.getCurrentActivity()
sa.myPublicMethod();

Answer 1

This really depends on what sort of functionality you are implementing. You could have each activity implement an interface with the instance methods you need and then have the tabhost contain a reference to the current activity of type interface. If you do this, make sure to update the reference each time you switch to another activity.