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What are the advantages of the activity life cycle callback events to do the right work at the right time.
The lifecycle callbacks can help ensure that your app avoids:
Crashing if the user receives a phone call or switches to another app while using your app.
Consuming valuable system resources when the user is not actively using it.
Losing the user's progress if they leave your app and return to it at a later time.
Crashing or losing the user's progress when the screen rotates between landscape and portrait orientation.