Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
316 views
in Technique[技术] by (71.8m points)

android - Will 'Bundle savedInstanceState' be alive after Application is being killed?

Will savedInstanceState bundle in onCreate() method be alive (not null) after Application is being killed? If it would, where this bundle is stored in the system.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

If Android kills the process hosting your app, it still maintains the "saved instance state" of all active (non-finished) activities. This data is stored by the ActivityManager. If the user returns to your application, Android will create a new process for the app, instantiate the Application instance again and then create an instance of the top activity in the activity stack. It will then call onCreate() on that activity instance passing it the "saved instance state" that was most recently saved for that activity.

If you reboot your phone, all this data is lost (Android does not save application state across reboots).


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...