Android Activity State Change Quiz

Welcome to the Android Activity State Changes Quiz! This quiz is designed to test your understanding of key concepts related to Android activity and fragment lifecycle management, as outlined in the chapter. You’ll explore topics such as lifecycle methods, state management, configuration changes, and modern lifecycle techniques. Each question includes detailed explanations to reinforce your learning.

What does the entire lifetime of an activity encompass?

From onStart() to onStop().

From onRestart() to onDestroy().

From onResume() to onPause().

From onCreate() to onDestroy().

None

What does the foreground lifetime of an activity refer to?

The period when the activity is visible but not interactive.

The period between onResume() and onPause().

The period between onCreate() and onDestroy().

The period after the activity is destroyed.

None

What is the difference between persistent state and dynamic state?

Persistent state is for single app sessions, while dynamic state spans multiple sessions.

Persistent state is UI state, while dynamic state is stored in a database.

Persistent state is data saved between app invocations, while dynamic state is temporary UI state.

Persistent state refers to runtime memory, while dynamic state refers to temporary variables.

None

Which method is called when an activity is restarted after being stopped?

onCreate()

onResume()

onRestart()

onStart()

None

Which lifecycle method is used for initializing an activity when it is first created?

onStart()

onCreate()

onResume()

onDestroy()

None

What is the role of the Bundle parameter in onCreate() and onRestoreInstanceState()?

It stores persistent state.

It contains dynamic state from a previous session.

It is used for fragment transactions.

It initializes the activity’s UI layout.

None

What is a drawback of lifecycle methods for custom classes?

They are unavailable for fragments.

They cannot be overridden.

They automatically save state.

They are restricted to Fragment and Activity subclasses.

None

What does the android:configChanges directive do?

Forces activity restarts on configuration changes.

Prevents activity restarts on specific configuration changes.

Modifies the lifecycle methods.

Automatically saves dynamic state.

None

What is the primary objective of lifecycle management in Android?

To monitor runtime system performance.

To ensure activities transition between states seamlessly.

To handle the appearance of the app’s user interface.

To avoid data loss during activity state changes.

None

10.

Which method is used to restore dynamic state after an activity is recreated?

onRestoreInstanceState(Bundle savedInstanceState)

onRestoreState(Bundle savedInstanceState)

onStart(Bundle savedInstanceState)

restoreInstanceState(Bundle inState)

None

11.

What is the limitation of traditional lifecycle methods in observing state changes?

They can only be called manually.

They are not available for fragments.

They cannot track their own lifecycle state.

They do not support saving persistent state.

None

12.

What is a significant advantage of lifecycle-aware components?

They simplify lifecycle management and reduce errors.

They replace the Activity and Fragment classes.

They eliminate the need for lifecycle methods.

They save persistent state automatically.

None

13.

What is the role of the onPause() method?

To restore the user interface state.

To initialize the activity.

To save persistent data only.

To indicate the activity is about to move to the background.

None

14.

What is the purpose of the onConfigurationChanged() method?

To initialize the activity’s layout.

To restart the activity on configuration changes.

To handle configuration changes without restarting the activity.

To save dynamic state before destruction.

None

15.

Which lifecycle method is unique to fragments?

onAttach()

onStart()

onCreate()

onPause()

None

16.

What is multi-resume in Android?

When an activity supports configuration changes.

When an activity is restored from a previous state.

When multiple activities can be resumed simultaneously.

When an activity is paused and resumed multiple times.

None

17.

What does the onResume() lifecycle method signify?

The activity is at the top of the activity stack and is interactive.

The activity is becoming visible to the user.

The activity has been paused.

The activity has been destroyed.

None

18.

What happens if a lifecycle method override does not call the corresponding superclass method?

The lifecycle will skip the next state.

The runtime system may throw an exception.

The method will execute without issues.

The app will continue functioning normally.

None

19.

Which method is used to save dynamic state before an activity is destroyed?

onSaveInstanceState(Bundle inState)

onSaveState(Bundle outState)

onSave()

onSaveInstanceState(Bundle outState)

None

20.

What is the purpose of the onTopResumedActivityChanged() method?

To save persistent data automatically.

To handle configuration changes.

To track lifecycle state transitions.

To notify when an activity gains or loses topmost resumed status.

None

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