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

They do not support saving persistent state.

They can only be called manually.

They cannot track their own lifecycle state.

They are not available for fragments.

None

What is the purpose of the onConfigurationChanged() method?

To save dynamic state before destruction.

To initialize the activity’s layout.

To restart the activity on configuration changes.

To handle configuration changes without restarting the activity.

None

What is a significant advantage of lifecycle-aware components?

They replace the Activity and Fragment classes.

They save persistent state automatically.

They eliminate the need for lifecycle methods.

They simplify lifecycle management and reduce errors.

None

What does the android:configChanges directive do?

Modifies the lifecycle methods.

Automatically saves dynamic state.

Forces activity restarts on configuration changes.

Prevents activity restarts on specific configuration changes.

None

Which lifecycle method is unique to fragments?

onCreate()

onPause()

onStart()

onAttach()

None

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

It initializes the activity’s UI layout.

It stores persistent state.

It is used for fragment transactions.

It contains dynamic state from a previous session.

None

What does the foreground lifetime of an activity refer to?

The period between onCreate() and onDestroy().

The period between onResume() and onPause().

The period after the activity is destroyed.

The period when the activity is visible but not interactive.

None

What is multi-resume in Android?

When an activity is restored from a previous state.

When an activity supports configuration changes.

When multiple activities can be resumed simultaneously.

When an activity is paused and resumed multiple times.

None

What does the onResume() lifecycle method signify?

The activity has been paused.

The activity has been destroyed.

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

The activity is becoming visible to the user.

None

10.

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

onDestroy()

onCreate()

onStart()

onResume()

None

11.

What is the primary objective of lifecycle management in Android?

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

To monitor runtime system performance.

To ensure activities transition between states seamlessly.

To avoid data loss during activity state changes.

None

12.

What does the entire lifetime of an activity encompass?

From onRestart() to onDestroy().

From onStart() to onStop().

From onResume() to onPause().

From onCreate() to onDestroy().

None

13.

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

The app will continue functioning normally.

The lifecycle will skip the next state.

The method will execute without issues.

The runtime system may throw an exception.

None

14.

What is the difference between persistent state and dynamic state?

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

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

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

15.

What is a drawback of lifecycle methods for custom classes?

They are restricted to Fragment and Activity subclasses.

They are unavailable for fragments.

They automatically save state.

They cannot be overridden.

None

16.

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

17.

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

onCreate()

onStart()

onRestart()

onResume()

None

18.

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

onRestoreState(Bundle savedInstanceState)

onRestoreInstanceState(Bundle savedInstanceState)

onStart(Bundle savedInstanceState)

restoreInstanceState(Bundle inState)

None

19.

What is the purpose of the onTopResumedActivityChanged() method?

To save persistent data automatically.

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

To track lifecycle state transitions.

To handle configuration changes.

None

20.

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

onSaveState(Bundle outState)

onSaveInstanceState(Bundle inState)

onSaveInstanceState(Bundle outState)

onSave()

None

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