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Android

Activity LifeCycle (Help!)

I'm on the last challenge for the Activity Lifecycle (challenge 5), but I just don't seem to understand it. Any help would be appreciated. Challenge: MainActivity has been set up to detect a shake event, but we forgot to unregister our listener in the 'onPause()' method, and our battery is almost dead! In 'onPause()', call the 'unregisterListener()' method of the mSensorManager variable. The 'unregisterListener()' method requires one parameter; let’s use our ShakeDetector variable.

2 Answers

Ben Jakuben
STAFF
Ben Jakuben
Treehouse Teacher

Hi Steve,

In this code challenge, the onPause() and onResume() methods are basically the opposite of each other. onPause stops the listener, and onResume starts it again. With that as a hint, can you figure out how and where to call the unregisterListener() method?

Oh okay...that makes sense now. Thanks Ben!