how to communicate between tabhost and actvities

I create my code like that:

        final TabHost tabHost = getTabHost();
开发者_运维百科
        tabHost.addTab(tabHost.newTabSpec("Month")
                .setIndicator("Month")
                .setContent(new Intent(this, MonthView.class)));

How can i communicate with tabhost in monthview class?

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Use the getParent() method on MonthView.