App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 253 · 40 questions

Developer's tip (Stack of screens): Open a screen → it goes on top of the stack. Back → the top screen closes; you see the one underneath. Tap a tab → you jump to that tab’s main screen. Backs needed to get home = screens on the stack − 1.

1. 1.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Friend list”
   2. tap Back
   3. open “Badges”
   4. tap the Quiz tab
   How many times must you tap Back to reach the main screen of this tab?
2. 2.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 3 to 5 (c) 1 (d) 10 to 12
3. 3.Which of these is true of a tab bar? (a) undoes one move (b) shows 3 to 5 icons (c) hides extra links (d) opens a list of pages
4. 4.Which of these is true of the back button? (a) hides extra links (b) opens a list of pages (c) sits at the bottom (d) undoes one move
5. 5.🧭 Which part of navigation hides extra links? (a) the back button (b) a tab bar (c) a menu button
6. 6.🧭 Which part of navigation switches main sections? (a) a menu button (b) the back button (c) a tab bar
7. 7.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Badges”
   2. open “Score card”
   3. open “Video”
   4. open “Map”
   5. tap the Chat tab
   Which screen are you on now? (a) Badges (b) Video (c) Chat (d) Score card
8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Help page”
   2. tap the Profile tab
   3. open “Friend list”
   Which screen are you on now? (a) Help page (b) Search (c) Friend list (d) Home
9. 9.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Video”
   2. open “Video”
   3. tap the Feed tab
   4. tap the Settings tab
   5. open “Help page”
   How many times must you tap Back to reach the main screen of this tab?
10. 10.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. tap the Quiz tab
    3. open “Badges”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
11. 11.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. tap the Feed tab
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
12. 12.🧭 Which part of navigation undoes one move? (a) a tab bar (b) the back button (c) a menu button
13. 13.Which of these is true of the back button? (a) opens a list of pages (b) sits at the bottom (c) hides extra links (d) goes to the last screen
14. 14.🧭 Where is a tab bar usually placed in a phone app? (a) inside a button (b) in the middle (c) at the bottom (d) nowhere
15. 15.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. tap the Settings tab
    3. tap the Chat tab
    4. tap the Settings tab
    How many times must you tap Back to reach the main screen of this tab?
16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap Back
    3. open “Map”
    4. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
17. 17.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. open “Help page”
    3. tap the Home tab
    4. open “Badges”
    Which screen are you on now? (a) Help page (b) Search (c) Home (d) Badges
18. 18.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. tap Back
    3. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
19. 19.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap the Feed tab
    3. tap the Settings tab
    4. tap the Chat tab
    Which screen are you on now? (a) Feed (b) Settings (c) Chat (d) Video
20. 20.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. open “Badges”
    3. tap the Me tab
    How many times must you tap Back to reach the main screen of this tab?
21. 21.🧭 Why should every screen show where you are? (a) to use more battery (b) to look busy (c) to hide the menu (d) so users do not get lost
22. 22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Match report”
    3. tap Back
    4. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?
23. 23.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap Back
    3. open “Video”
    4. open “Video”
    Which screen are you on now? (a) Me (b) Quiz (c) Lessons (d) Video
24. 24.🧭 Tapping a tab usually takes you to ___. (a) the phone settings (b) a random page (c) that tab’s main screen (d) the last app used
25. 25.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap the Quiz tab
    3. open “Video”
    Which screen are you on now? (a) Quiz (b) Score card (c) Lessons (d) Video
26. 26.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. open “Video”
    3. tap the Me tab
    How many times must you tap Back to reach the main screen of this tab?
27. 27.Which of these is true of a tab bar? (a) goes to the last screen (b) switches main sections (c) hides extra links (d) opens a list of pages
28. 28.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap Back
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
29. 29.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) a tab bar (c) the back button
30. 30.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. tap the Search tab
    3. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?
31. 31.🧭 Which part of navigation shows 3 to 5 icons? (a) a tab bar (b) the back button (c) a menu button
32. 32.Which of these is true of a tab bar? (a) opens a list of pages (b) hides extra links (c) undoes one move (d) sits at the bottom
33. 33.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Map”
    3. tap the Settings tab
    Which screen are you on now? (a) Settings (b) Feed (c) Map (d) Chat
34. 34.Which of these is true of a menu button? (a) goes to the last screen (b) switches main sections (c) undoes one move (d) opens a list of pages
35. 35.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Friend list”
    3. tap Back
    4. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
37. 37.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. open “Friend list”
    3. open “Match report”
    4. tap the Lessons tab
    5. open “Friend list”
    Which screen are you on now? (a) Badges (b) Match report (c) Friend list (d) Lessons
38. 38.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap Back
    3. tap the Lessons tab
    4. open “Match report”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
39. 39.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Help page”
    3. tap the Home tab
    Which screen are you on now? (a) Search (b) Home (c) Profile (d) Help page
40. 40.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Edit photo”
    3. open “Score card”
    4. tap Back
    5. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?

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