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I want to save application state to be able to restore it after another launch. Is is it better to use method onSaveInstanceState and save it to Bundle or to use SharedPreferences?
Thanks
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The savedInstanceState is a reference to a Bundle object that is passed into the onCreate method of every Android Activity. Activities have the ability, under special circumstances, to restore themselves to a previous state using the data stored in this bundle.
onPause() is the appropriate for saving the state of an Android application.
When the activity goes into the background, the system calls onSaveInstanceState() . You should save the search query in the onSaveInstanceState() bundle. This small amount of data is easy to save. It's also all the information you need to get the activity back into its current state.
An Android activity goes through six major lifecycle stages or callbacks. These are: onCreate() , onStart() , onResume() , onPause() , onStop() , and onDestroy() .
It depends on your intention. Using the onSaveInstanceState() is only a reasonable solution if you want to ensure saving the state during configurations changes and other restarting events. In case you aim for a true saving of the application's state beyond the lifecycle of the application, you should consider using either the SharedPreferences or maybe even employ a database.
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