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 foreground lifetime of an activity refer to?

The period after the activity is destroyed.

The period when the activity is visible but not interactive.

The period between onResume() and onPause().

The period between onCreate() and onDestroy().

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 is a drawback of lifecycle methods for custom classes?

They automatically save state.

They cannot be overridden.

They are restricted to Fragment and Activity subclasses.

They are unavailable for fragments.

None

What does the onResume() lifecycle method signify?

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

The activity has been paused.

The activity is becoming visible to the user.

The activity has been destroyed.

None

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

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

They can only be called manually.

They cannot track their own lifecycle state.

They do not support saving persistent state.

They are not available for fragments.

None

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

onCreate()

onResume()

onDestroy()

onStart()

None

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

onStart()

onResume()

onRestart()

onCreate()

None

What is the purpose of the onConfigurationChanged() method?

To restart the activity on configuration changes.

To save dynamic state before destruction.

To initialize the activity’s layout.

To handle configuration changes without restarting the activity.

None

10.

What is multi-resume in Android?

When an activity is restored from a previous state.

When an activity is paused and resumed multiple times.

When an activity supports configuration changes.

When multiple activities can be resumed simultaneously.

None

11.

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

restoreInstanceState(Bundle inState)

onRestoreInstanceState(Bundle savedInstanceState)

onRestoreState(Bundle savedInstanceState)

onStart(Bundle savedInstanceState)

None

12.

Which lifecycle method is unique to fragments?

onStart()

onAttach()

onCreate()

onPause()

None

13.

What does the android:configChanges directive do?

Forces activity restarts on configuration changes.

Automatically saves dynamic state.

Prevents activity restarts on specific configuration changes.

Modifies the lifecycle methods.

None

14.

What is the purpose of the onTopResumedActivityChanged() method?

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

To track lifecycle state transitions.

To handle configuration changes.

To save persistent data automatically.

None

15.

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

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.

None

16.

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

It contains dynamic state from a previous session.

It initializes the activity’s UI layout.

It is used for fragment transactions.

It stores persistent state.

None

17.

What is the primary objective of lifecycle management in Android?

To avoid data loss during activity state changes.

To ensure activities transition between states seamlessly.

To monitor runtime system performance.

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

None

18.

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

The lifecycle will skip the next state.

The method will execute without issues.

The runtime system may throw an exception.

The app will continue functioning normally.

None

19.

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

onSaveInstanceState(Bundle inState)

onSave()

onSaveState(Bundle outState)

onSaveInstanceState(Bundle outState)

None

20.

What is the role of the onPause() method?

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

To restore the user interface state.

To initialize the activity.

To save persistent data only.

None

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