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Mastering Android Activities

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Questions and Answers

What is the purpose of the onCreate() method in an activity?

It is called before the activity starts interacting with the user.

It is called when the activity is no longer visible to the user.

It is called before the activity becomes visible to the user. (correct)

It is called when the system is about to start resuming another activity.

What is the purpose of an activity in an Android app?

To manage network connectivity

To provide a focused task on a single screen (correct)

To handle user authentication

To store data

What is the purpose of an activity in an Android app?

To allow the user to customize the app layout

To perform multiple tasks at once

To create a single screen for a focused task (correct)

To provide a platform for multiple screens

When is the onPause() method called in the activity lifecycle?

When the system is about to start resuming another activity. Signup and view all the answers

Which callback method is called when the activity is about to start interacting with the user?

onResume( Signup and view all the answers

Which method is called when the system is about to start resuming another activity?

onPause( Signup and view all the answers

When is the onStop() callback method called?

When the activity is no longer visible to the user Signup and view all the answers

What happens when the activity is no longer visible to the user?

The activity is stopped Signup and view all the answers

Which method is responsible for finishing or temporarily destroying an activity due to a configuration change?

onDestroy( Signup and view all the answers

Study Notes

An activity is a single screen in an app for a focused task.
It has a Java class and an associated XML layout file.
The main activity is presented to the user at launch and can start other activities.
The activity lifecycle includes several states and callback methods.
onCreate() is only called once for the entire life of the activity.
onStart() is called before the activity becomes visible to the user.
onResume() is called before the activity starts interacting with the user.
onPause() is called when the system is about to start resuming another activity.
onStop() is called when the activity is no longer visible to the user.
onDestroy() is called when the activity is finishing or temporarily destroyed due to a configuration change.

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Description

Test your knowledge on Android app development with this quiz focused on Activities! From the basics of creating a Java class and XML layout file to understanding the activity lifecycle's different states and callback methods, this quiz covers it all. Challenge yourself to see how much you know about onCreate(), onStart(), onResume(), onPause(), onStop(), and onDestroy(). Sharpen your skills with this interactive quiz!