 <p>In continuation to Raghunandan's answer, you could check similar implementation in the link.</p> <p><a href="http://stackoverflow.com/questions/19149872/update-textview-in-fragment-a-when-clicking-button-in-fragment-b/19149882#19149882">update TextView in fragment A when clicking button in fragment B</a></p> <p>Do not forget to get a reference of the textview of the TextSectionFragment into the MainActivity.</p>