What is the difference between the onPause () method and onSaveInstanceState () method?
From the documentation I understand that onSaveInstanceState() should be called to store only temporary information, and onPause() should be used to store any persistent data.
What is the use of onPause () method?
onPause(): This method gets called when the UI is partially visible to the user. If a dialog is opened on the activity then the activity goes to pause state and calls onPause() method. Here the activity is in the paused state.
What is the difference between onCreate () and onStart ()?
onCreate() is called when the when the activity is first created. onStart() is called when the activity is becoming visible to the user.
When onPause of activity lifecycle is called?
onPause() is called at the end of the active lifetime; more specifically it is called as part of the activity lifecycle when an activity is going into the background, but has not (yet) been killed. The counterpart to onResume().
What is the difference between onStart and onResume in Android?
onStart() -> called when the activity becomes visible, but might not be in the foreground (e.g. an AlertFragment is on top or any other possible use case). onResume() -> called when the activity is in the foreground, or the user can interact with the Activity.
When Ondestroy () is called before onPause () and onStop () in an Android application?
onPause() and onStop() will not be invoked if finish() is called from within the onCreate() method. This might occur, for example, if you detect an error during onCreate() and call finish() as a result. In such a case, though, any cleanup you expected to be done in onPause() and onStop() will not be executed.
What is onCreate method?
onCreate is used to start an activity. super is used to call the parent class constructor. setContentView is used to set the xml.
What is the difference between onResume () and onRestart () activity?
Show activity on this post. onStart() -> called when the activity becomes visible, but might not be in the foreground (e.g. an AlertFragment is on top or any other possible use case). onResume() -> called when the activity is in the foreground, or the user can interact with the Activity.
What happens in onCreate?
onCreate() On activity creation, the activity enters the Created state. In the onCreate() method, you perform basic application startup logic that should happen only once for the entire life of the activity.
When onPause method is called in Android?
onPause. Called when the Activity is still partially visible, but the user is probably navigating away from your Activity entirely (in which case onStop will be called next). For example, when the user taps the Home button, the system calls onPause and onStop in quick succession on your Activity .
What is the difference between onsaveinstancestate () and onstop ()?
Let’s look at each of them separately. onSaveInstanceState method gets called typically before/after onStop () is called. This varies from Android version to version. In the older versions it used to get before onStop (). Inside this method, we save the important values in the Bundle in the form of key value pairs.
What is onsaveinstancestate in Salesforce?
The onSaveInstanceState() callback stores data needed to reload the state of a UI controller, such as an activity or a fragment, if the system destroys and later recreates that controller. To learn how to implement saved instance state, see Saving and restoring activity state in the Activity Lifecycle guide.
What is onsaveinstancestate method in Android?
onSaveInstanceState method gets called typically before/after onStop () is called. This varies from Android version to version. In the older versions it used to get before onStop (). Inside this method, we save the important values in the Bundle in the form of key value pairs. The onSaveInstanceState method looks like :
What is onsaveinstancestate in viewmodels?
onSaveInstanceState () is called during configuration changes and when the activity goes into the background; in both of these cases you actually do not need to reload or process the data if you keep it in a ViewModel. How do I use ViewModels to save and restore UI state efficiently?