ateek / androidactivitylifecycle

an explanation of android lifeCycle for beginners

Android Activity life Cycle

an explanation of android activity lifeCycle for beginners

Activity have six states

1- Created
2- Started
3- Resumed
4- Paused
5- Stopped
6- Destroyed

Activity lifecycle have seven methods

1- onCreate()
2- onStart()
3- onResume()
4- onPause()
5- onStopped()
6- onRestart()
7- onDestory()

Situations

When open the app

onCreate() --> onStart() --> onResume()

When back button pressed and exit the app

onPaused() -- > onStop() --> onDestory()

When home button pressed

onPaused() --> onStop()

After pressed home button when again open app from recent task list or clicked on icon

onRestart() --> onStart() --> onResume()

When open app another app from notification bar or open settings

onPaused() --> onStop()

Back button pressed from another app or settings then used can see our app

onRestart() --> onStart() --> onResume()

When any dialog open on screen

onPause()

After dismiss the dialog or back button from dialog

onResume()

Any phone is ringing and user in the app

onPause() --> onResume()

When user pressed phone's answer button

onPause()

After call end

onResume()

When phone screen off

onPaused() --> onStop()

Again screen on

onRestart() --> onStart() --> onResume()