Welcome to the “Saving and Restoring the State of an Android Activity” quiz! This quiz will test your understanding of how to manage dynamic state during activity lifecycle changes, including the use of the Bundle class, methods like onSaveInstanceState() and onRestoreInstanceState(), and the default and manual state-saving mechanisms. By mastering these concepts, you’ll be able to create Android apps that seamlessly handle configuration changes and preserve user experiences.
1.
Which method in the Bundle class is used to retrieve text data?
2.
What happens if the super.onSaveInstanceState() method is not called in the overridden method?
3.
How can custom objects be made Parcelable for saving in a Bundle?
4.
How is state restored in an Android activity?
5.
What is the purpose of the onSaveInstanceState() method in Android?
6.
What is the default behavior of most view widgets in saving state during activity recreation?
7.
What must an object implement to be stored in a Bundle?
8.
What is the purpose of the putCharSequence() method in the Bundle class?
9.
What is a key consideration when naming keys in the Bundle class?
10.
What key-value pair mechanism is used by the Bundle class?
11.
Why would you use the onRestoreInstanceState() method instead of onCreate() for restoring state?
12.
Which class is used to store and retrieve dynamic state in Android?
13.
How can the automatic state-saving behavior of a view widget be disabled?
14.
What is the advantage of using onSaveInstanceState() and onRestoreInstanceState() together?
15.
Why would you disable the automatic state-saving behavior for a view?
16.
Which method is called after onSaveInstanceState() when an activity is destroyed due to rotation?
17.
What lifecycle event is triggered before the activity is destroyed during a configuration change?
18.
When is onRestoreInstanceState() typically used for state restoration?
