Communication between TabActivity and the embedded activity

Question

I am trying to figure out the best practice of communication between a TabActivity and the child activity embedded in this TabActivity.

In my TabActivity, there is a

Answer 1

Since TabActivity is an ActivityGroup, I would use one of the following:

• getCurrentActivity()

Returns the child tab activity being displayed. In your case, this method will return the instance of ChildActivity being used.

ChildActivity childActivity = (ChildActivity) getCurrentActivity();

• getLocalActivityManager().getActivity(String)

Returns the child tab activity given its ID/tab spec name, whatever activity being displayed.

ChildActivity childActivity = (ChildActivity) getLocalActivityManager().getActivity("Tab 1");

I suggest overriding onNewIntent(Intent) in your ChildActivity:

Intent intent = new Intent();
intent.putExtra("xyz", "whatever"); // or a serializable

ChildActivity childActivity = (ChildActivity) getLocalActivityManager().getActivity("Tab 1");
childActivity.onNewIntent(intent);

Let me know if it works!