Registering and unregistering BroadcastReceiver in a fragment

by

Have a look at life-cycle of Fragments:

onCreateView():
The system calls this when it’s time for the fragment to draw its user interface for the first time. To draw a UI for your fragment, you must return a View from this method that is the root of your fragment’s layout. You can return null if the fragment does not provide a UI.

onResume():
The fragment is visible in the running activity

onPause():
This is usually where you should commit any changes that should be persisted beyond the current user session (because the user might not come back).

Conclusion:

So it is better to register the receiver only inside onResume() and unregister inside onPause() because onCreateView() deals with view hierarchy only. It has nothing to do with receiver. So it is not harmful but surely it is useless.

I hope it will be helpful!!

More Related Contents:

  1. Google Fused Location API causing error (Android)
  2. Start and Close single Activity from BroadcastReceiver
  3. How to implement onBackPressed() in Fragments?
  4. Why fragments, and when to use fragments instead of activities?
  5. Programmatically go back to the previous fragment in the backstack
  6. Android: can’t replace one fragment with another
  7. Difference between android.app.Fragment and android.support.v4.app.Fragment
  8. FragmentContainerView using findNavController
  9. Show hide fragment in android
  10. When to Register/Unregister Broadcast Receivers created in an activity?
  11. android.content.Context.getPackageName()’ on a null object reference
  12. Further understanding setRetainInstance(true)
  13. How to wrap the height of a ViewPager to the height of its current Fragment?
  14. Broadcast Receiver Not Working After Device Reboot in Android
  15. Detect ViewPager tab change inside Fragment
  16. Remove old Fragment from fragment manager
  17. Get GPS Location in a Broadcast Receiver/or Service to Broadcast Receiver data transfer
  18. Fragment or Support Fragment?
  19. Get battery level before broadcast receiver responds for Intent.ACTION_BATTERY_CHANGED
  20. ADT blank activity created with fragment activity
  21. FragmentManager is already executing transactions. When is it safe to initialise pager after commit?
  22. Why getContext() in fragment sometimes returns null?
  23. How to read all the coming notifications in android
  24. When to use FragmentManager::putFragment and getFragment
  25. Data Sharing between Fragments and Activity in Android
  26. Oreo BroadcastReceiver SMS Received not working
  27. onReceive method doesn’t get called
  28. How to open fragment page, when pressed a notification in android
  29. OnCreateView called multiple times / Working with ActionBar and Fragments
  30. Pop up window to display some stuff in a fragment

Leave a Comment