DonLiangGit/Activity-Fragment

Activity Manager in Android Framework and Fragment related things.

Activity-Fragment

Activity Manager in Android Framework and Fragment related things.

A complete Activity and Fragment lifecycle below:

Activity:

1. onCreate() is called -> saveInstanceState = null, no state for the application
2. onStart() and onResume() runs when the app runs
3. onPause() - onStop() - onDestroy() are called sequentially when pressing the BACK button
4. onPause() - onStop() are called when pressing the HOME button
5. onRestart() - onStart() - onResume() are called when return to the activity

Fragment:

1. onAttache(): attach the fragment to activity
2. onCreate(): create the fragment itself
3. onCreateView(): create the fragment UI
4. onStart()/onResume() are similar to the activity
5. onPause()/onStop()/onDestoryView()/onDestroy are called before the corresponding method of Activity
6. onDetach()