This call can occur if the host Activity has stopped, or the Activity has removed the Fragment. onDestroyView(): Called when the View previously created by onCreateView() has been detached from the Fragment.The onActivit圜reated() method is called after onCreateView() and before onViewStateRestored(). It is also useful for a Fragment that uses setRetainInstance() to retain its instance, as this callback tells the Fragment when it is fully associated with the new Activity instance. Use it to do final initialization, such as retrieving views or restoring state. onActivit圜reated(): Called when the Activity onCreate() method has returned.Use this method to check if the Activity has implemented the required listener callback for the Fragment (if a listener interface was defined in the Fragment). onAttach(): Called when a Fragment is first attached to a host Activity.onResume(): Called by the Activity to resume a Fragment that is visible to the user and actively running.The Fragment class has other useful lifecycle callbacks: If the user presses the Back button and the Fragment is returned from the back stack, the lifecycle resumes with the onCreateView() callback.
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