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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 701 · 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 tab bar? (a) hides extra links (b) sits at the bottom (c) undoes one move (d) opens a list of pages
  2. 2.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Friend list”
    3. open “Friend list”
    4. tap the Profile tab
    How many times must you tap Back to reach the main screen of this tab?
  3. 3.🧭 Which part of navigation hides extra links? (a) the back button (b) a tab bar (c) a menu button
  4. 4.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. open “Help page”
    3. tap Back
    Which screen are you on now?     (a) Video (b) Home (c) Search (d) Help page
  5. 5.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. open “Badges”
    3. tap the Settings tab
    4. tap the Feed tab
    5. open “Score card”
    Which screen are you on now?     (a) Score card (b) Badges (c) Map (d) Feed
  6. 6.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. tap the Quiz tab
    3. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
  7. 7.🧭 Which part of navigation goes to the last screen? (a) a menu button (b) a tab bar (c) the back button
  8. 8.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 10 to 12 (c) 1 (d) 3 to 5
  9. 9.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Score card”
    3. tap Back
    Which screen are you on now?     (a) Quiz (b) Lessons (c) Me (d) Score card
  10. 10.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap Back
    3. open “Edit photo”
    4. tap the Settings tab
    How many times must you tap Back to reach the main screen of this tab?
  11. 11.Which of these is true of a tab bar? (a) hides extra links (b) goes to the last screen (c) opens a list of pages (d) shows 3 to 5 icons
  12. 12.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. tap the Profile tab
    Which screen are you on now?     (a) Profile (b) Help page (c) Home (d) Search
  13. 13.Which of these is true of the back button? (a) sits at the bottom (b) undoes one move (c) shows 3 to 5 icons (d) opens a list of pages
  14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Edit photo”
    3. open “Edit photo”
    4. tap Back
    5. open “Video”
    Which screen are you on now?     (a) Edit photo (b) Search (c) Home (d) Video
  15. 15.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap Back
    3. open “Friend list”
    4. tap the Home tab
    Which screen are you on now?     (a) Friend list (b) Home (c) Search (d) Profile
  16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Map”
    3. tap the Home tab
    4. open “Edit photo”
    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. tap the Profile tab
    2. open “Map”
    3. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
  18. 18.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap the Settings tab
    3. open “Help page”
    4. tap Back
    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 “Edit photo”
    2. open “Match report”
    3. open “Map”
    4. tap the Feed tab
    5. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
  20. 20.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap Back
    3. tap the Quiz tab
    Which screen are you on now?     (a) Match report (b) Me (c) Lessons (d) Quiz
  21. 21.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. open “Video”
    4. open “Help page”
    Which screen are you on now?     (a) Home (b) Video (c) Help page (d) Search
  22. 22.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) the back button (c) a tab bar
  23. 23.🧭 What does the back button usually do? (a) goes to the last screen (b) closes all apps (c) opens settings (d) deletes the page
  24. 24.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Score card”
    3. tap Back
    4. open “Score card”
    Which screen are you on now?     (a) Lessons (b) Quiz (c) Me (d) Score card
  25. 25.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap Back
    3. tap the Chat tab
    How many times must you tap Back to reach the main screen of this tab?
  26. 26.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap the Lessons tab
    3. open “Match report”
    Which screen are you on now?     (a) Match report (b) Lessons (c) Map (d) Quiz
  27. 27.🧭 Which part of navigation undoes one move? (a) a menu button (b) a tab bar (c) the back button
  28. 28.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Friend list”
    3. open “Map”
    Which screen are you on now?     (a) Quiz (b) Friend list (c) Lessons (d) Map
  29. 29.Which of these is true of a menu button? (a) goes to the last screen (b) undoes one move (c) switches main sections (d) hides extra links
  30. 30.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. tap the Lessons tab
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
  31. 31.🧭 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
    4. open “Edit photo”
    5. open “Help page”
    Which screen are you on now?     (a) Help page (b) Home (c) Map (d) Edit photo
  32. 32.🧭 Where is a tab bar usually placed in a phone app? (a) at the bottom (b) nowhere (c) in the middle (d) inside a button
  33. 33.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap Back
    3. open “Edit photo”
    4. tap Back
    Which screen are you on now?     (a) Help page (b) Feed (c) Edit photo (d) Chat
  34. 34.🧭 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 “Score card”
    Which screen are you on now?     (a) Chat (b) Score card (c) Edit photo (d) Feed
  35. 35.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. open “Badges”
    4. tap the Profile tab
    5. open “Score card”
    Which screen are you on now?     (a) Match report (b) Badges (c) Home (d) Score card
  36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap Back
    3. open “Map”
    4. open “Badges”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  37. 37.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. open “Video”
    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. open “Video”
    2. open “Score card”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  39. 39.🧭 Which part of navigation switches main sections? (a) a tab bar (b) a menu button (c) the back button
  40. 40.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Edit photo”
    3. open “Score card”
    4. tap Back
    Which screen are you on now?     (a) Feed (b) Score card (c) Chat (d) Edit photo

Answer key

  1. sits at the bottom
  2. 0
  3. a menu button
  4. Video
  5. Score card
  6. 1
  7. the back button
  8. 3 to 5
  9. Lessons
  10. 0
  11. shows 3 to 5 icons
  12. Profile
  13. undoes one move
  14. Video
  15. Home
  16. 1
  17. 0
  18. 0
  19. 1
  20. Quiz
  21. Help page
  22. a tab bar
  23. goes to the last screen
  24. Score card
  25. 0
  26. Match report
  27. the back button
  28. Map
  29. hides extra links
  30. 1
  31. Help page
  32. at the bottom
  33. Feed
  34. Score card
  35. Score card
  36. 1
  37. 2
  38. 1
  39. a tab bar
  40. Edit photo

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