Millised Androidi tegevuse elutsükli meetodid ei ole teatud juhtudel garanteeritud?

Android activity lifecycle methods, the execution of which is not guaranteed in certain cases, include:

• onPause() — may not be called if the application is abruptly terminated.
• onStop() — may also be skipped in case of unexpected termination.
• onDestroy() — especially, its call is not guaranteed in case of system process killing or resource shortage.

For example, if the system kills the application process to free memory, the methods onPause(), onStop() and onDestroy() may not be called. Therefore, it is important to save state in onSaveInstanceState() and not rely on onDestroy() for critical operations.