Handling back button press Inside Fragments

This is the fourth part of a 6 posts series on Fragment oriented application architecture. In the previous post I talked about Inter-Fragment Communication. In this part I am going discuss about elegantly handling back button press inside fragments in a fragment oriented application.

(Sample application's source code and README)

Android devices have a hardware back button which normally serves the purpose of going back through the screens/actions stack. Callback to a back button press event is received in the foreground Activity (onBackPressed() event callback) which can be overridden and handled.

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