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

The method will execute without issues.

The app will continue functioning normally.

The lifecycle will skip the next state.

The runtime system may throw an exception.

None

What does the android:configChanges directive do?

Automatically saves dynamic state.

Modifies the lifecycle methods.

Prevents activity restarts on specific configuration changes.

Forces activity restarts on configuration changes.

None

What is the difference between persistent state and dynamic state?

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

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

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 destroyed.

The activity is becoming visible to the user.

The activity has been paused.

None

What does the entire lifetime of an activity encompass?

From onResume() to onPause().

From onCreate() to onDestroy().

From onStart() to onStop().

From onRestart() to onDestroy().

None

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

onDestroy()

onCreate()

onStart()

onResume()

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 the limitation of traditional lifecycle methods in observing state changes?

They cannot track their own lifecycle state.

They can only be called manually.

They are not available for fragments.

They do not support saving persistent state.

None

What is the purpose of the onTopResumedActivityChanged() method?

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

To handle configuration changes.

To save persistent data automatically.

To track lifecycle state transitions.

None

10.

What is the primary objective of lifecycle management in Android?

To monitor runtime system performance.

To avoid data loss during activity state changes.

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

To ensure activities transition between states seamlessly.

None

11.

What is a significant advantage of lifecycle-aware components?

They save persistent state automatically.

They eliminate the need for lifecycle methods.

They simplify lifecycle management and reduce errors.

They replace the Activity and Fragment classes.

None

12.

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

onCreate()

onResume()

onStart()

onRestart()

None

13.

What is a drawback of lifecycle methods for custom classes?

They cannot be overridden.

They are restricted to Fragment and Activity subclasses.

They automatically save state.

They are unavailable for fragments.

None

14.

What is the role of the onPause() method?

To initialize the activity.

To save persistent data only.

To restore the user interface state.

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

None

15.

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

It initializes the activity’s UI layout.

It contains dynamic state from a previous session.

It stores persistent state.

It is used for fragment transactions.

None

16.

What is multi-resume in Android?

When an activity supports configuration changes.

When an activity is paused and resumed multiple times.

When multiple activities can be resumed simultaneously.

When an activity is restored from a previous state.

None

17.

Which lifecycle method is unique to fragments?

onStart()

onCreate()

onAttach()

onPause()

None

18.

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

onStart(Bundle savedInstanceState)

onRestoreState(Bundle savedInstanceState)

restoreInstanceState(Bundle inState)

onRestoreInstanceState(Bundle savedInstanceState)

None

19.

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

onSave()

onSaveInstanceState(Bundle inState)

onSaveInstanceState(Bundle outState)

onSaveState(Bundle outState)

None

20.

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

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