Module 4

Question 1

This is referred to as one screen of the Android app’s user interface.

Answer 1

Activity

Question 2

True or False.
An Android app may contain one or more activities, meaning one or more screens.

Answer 2

True
(duh)

Question 3

True or False.
The Android app starts by showing the __________, and from there the app may make it possible to open additional activities

Answer 3

Main Activity

Question 4

All activities in your Android apps are represented by a/an ______.

Answer 4

Activity Class

Question 5

Activity Classes are subclasses of ____________

Answer 5

android.app.Activity

Question 6

This is the first callback and called when the activity is first created.

Answer 6

onCreate()

Question 7

This callback is called when the activity becomes visible to the user.

Answer 7

onStart()

Question 8

This is called when the user starts interacting with the application.

Answer 8

onResume()

Question 9

The paused activity does not receive user input and cannot execute any code and called when the current activity is being paused and the previous activity is being resumed.

Answer 9

onPause()

Question 10

This callback is called when the activity is no longer visible.

Answer 10

onStop()

Question 11

This callback is called before the activity is destroyed by the system.

Answer 11

onDestroy()

Question 12

This callback is called when the activity restarts after stopping it.

Answer 12

onRestart()

Question 13

True or False.
All activities, should be documented on your main activity file.

Answer 13

False.
(all activities should be documented on your MANIFEST file)