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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 667 · 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.🧭 About how many tabs suit a tab bar best? (a) 3 to 5 (b) 1 (c) 20 (d) 10 to 12
  2. 2.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Help page”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  3. 3.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. open “Video”
    3. open “Match report”
    Which screen are you on now?     (a) Score card (b) Match report (c) Video (d) Feed
  4. 4.🧭 Why should every screen show where you are? (a) so users do not get lost (b) to hide the menu (c) to use more battery (d) to look busy
  5. 5.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Friend list”
    3. tap Back
    4. tap the Feed tab
    5. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
  6. 6.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap Back
    3. open “Video”
    4. tap Back
    Which screen are you on now?     (a) Score card (b) Video (c) Chat (d) Feed
  7. 7.Which of these is true of a tab bar? (a) undoes one move (b) hides extra links (c) shows 3 to 5 icons (d) goes to the last screen
  8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap the Home tab
    3. open “Video”
    4. tap Back
    5. open “Video”
    Which screen are you on now?     (a) Search (b) Video (c) Home (d) Profile
  9. 9.Which of these is true of a menu button? (a) undoes one move (b) sits at the bottom (c) opens a list of pages (d) shows 3 to 5 icons
  10. 10.🧭 Which part of navigation goes to the last screen? (a) the back button (b) a tab bar (c) a menu button
  11. 11.Which of these is true of the back button? (a) shows 3 to 5 icons (b) undoes one move (c) sits at the bottom (d) switches main sections
  12. 12.🧭 Which part of navigation shows 3 to 5 icons? (a) a menu button (b) a tab bar (c) the back button
  13. 13.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Badges”
    3. open “Edit photo”
    Which screen are you on now?     (a) Lessons (b) Badges (c) Edit photo (d) Quiz
  14. 14.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap the Settings tab
    3. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
  15. 15.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. open “Match report”
    3. open “Video”
    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 “Map”
    2. tap the Search tab
    3. tap the Home tab
    Which screen are you on now?     (a) Profile (b) Search (c) Map (d) Home
  17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. open “Help page”
    3. open “Map”
    4. tap Back
    5. open “Edit photo”
    Which screen are you on now?     (a) Score card (b) Map (c) Help page (d) Edit photo
  18. 18.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) a tab bar (c) the back button
  19. 19.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Video”
    3. tap the Search tab
    4. open “Help page”
    5. tap the Search tab
    Which screen are you on now?     (a) Search (b) Video (c) Help page (d) Home
  20. 20.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Score card”
    4. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
  21. 21.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. open “Help page”
    3. tap Back
    4. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
  22. 22.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap Back
    3. open “Video”
    Which screen are you on now?     (a) Feed (b) Video (c) Chat (d) Map
  23. 23.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Friend list”
    3. open “Match report”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  24. 24.Which of these is true of a menu button? (a) sits at the bottom (b) hides extra links (c) undoes one move (d) shows 3 to 5 icons
  25. 25.Which of these is true of a tab bar? (a) undoes one move (b) switches main sections (c) opens a list of pages (d) hides extra links
  26. 26.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Match report”
    Which screen are you on now?     (a) Chat (b) Match report (c) Edit photo (d) Feed
  27. 27.🧭 Which part of navigation switches main sections? (a) a menu button (b) the back button (c) a tab bar
  28. 28.🧭 What does the back button usually do? (a) opens settings (b) closes all apps (c) deletes the page (d) goes to the last screen
  29. 29.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap the Profile tab
    3. tap the Home tab
    4. open “Edit photo”
    5. tap the Profile tab
    Which screen are you on now?     (a) Profile (b) Home (c) Video (d) Edit photo
  30. 30.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap the Me tab
    3. open “Video”
    Which screen are you on now?     (a) Score card (b) Video (c) Quiz (d) Lessons
  31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap the Home tab
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  32. 32.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Badges”
    3. open “Match report”
    4. tap Back
    5. tap Back
    Which screen are you on now?     (a) Chat (b) Match report (c) Feed (d) Badges
  33. 33.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Score card”
    3. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
  34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Video”
    3. tap Back
    4. tap the Quiz tab
    5. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
  35. 35.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Profile tab
    3. open “Friend list”
    4. tap Back
    Which screen are you on now?     (a) Friend list (b) Search (c) Profile (d) Home
  36. 36.🧭 Where is a tab bar usually placed in a phone app? (a) inside a button (b) nowhere (c) in the middle (d) at the bottom
  37. 37.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Edit photo”
    3. tap Back
    4. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
  38. 38.🧭 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 Home tab
    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 Feed tab
    2. tap the Settings tab
    3. 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. open “Video”
    2. tap the Home tab
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?

Answer key

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

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