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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 804 · 40 questions
TalentJR

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.

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

Answer key

  1. opens a list of pages
  2. Video
  3. Match report
  4. Video
  5. switches main sections
  6. 2
  7. at the bottom
  8. the back button
  9. 0
  10. Search
  11. 1
  12. sits at the bottom
  13. a menu button
  14. 0
  15. Badges
  16. goes to the last screen
  17. 3
  18. a tab bar
  19. Feed
  20. shows 3 to 5 icons
  21. Match report
  22. Home
  23. hides extra links
  24. so users do not get lost
  25. undoes one move
  26. Video
  27. 0
  28. Score card
  29. Score card
  30. 3 to 5
  31. 1
  32. 0
  33. Match report
  34. Badges
  35. 1
  36. 1
  37. goes to the last screen
  38. 1
  39. 1
  40. 4

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