Can data be saved in the onSaveInstanceState method for recovery after the application process ends?

The onSaveInstanceState method is intended for saving small amounts of data to restore the Activity's state when it is recreated (for example, during a screen rotation). However, it is not suitable for saving data when the application process is terminated, as the Bundle is limited in size and is not preserved when the process is completely destroyed.

To save data between application launches, it is better to use:

• SharedPreferences
• Databases (Room, SQLite)
• Files

onSaveInstanceState is useful for temporarily saving UI state, but not for long-term data storage.