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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 413 · 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.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Edit photo”
    3. tap Back
    4. open “Edit photo”
    5. open “Badges”
    Which screen are you on now?     (a) Edit photo (b) Quiz (c) Lessons (d) Badges
  2. 2.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Score card”
    3. tap the Lessons tab
    4. open “Map”
    5. open “Help page”
    Which screen are you on now?     (a) Map (b) Score card (c) Help page (d) Lessons
  3. 3.🧭 Why should every screen show where you are? (a) to look busy (b) to hide the menu (c) so users do not get lost (d) to use more battery
  4. 4.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap Back
    3. open “Badges”
    4. tap Back
    5. tap the Home tab
    Which screen are you on now?     (a) Score card (b) Home (c) Badges (d) Search
  5. 5.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Profile tab
    3. open “Edit photo”
    4. tap the Home tab
    Which screen are you on now?     (a) Home (b) Edit photo (c) Search (d) Profile
  6. 6.Which of these is true of a tab bar? (a) undoes one move (b) goes to the last screen (c) hides extra links (d) sits at the bottom
  7. 7.Which of these is true of a menu button? (a) goes to the last screen (b) hides extra links (c) undoes one move (d) switches main sections
  8. 8.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap the Quiz tab
    3. open “Map”
    Which screen are you on now?     (a) Map (b) Score card (c) Quiz (d) Lessons
  9. 9.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. tap the Home tab
    4. open “Video”
    5. tap the Search tab
    Which screen are you on now?     (a) Video (b) Home (c) Search (d) Help page
  10. 10.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. open “Help page”
    3. tap Back
    4. tap the Lessons tab
    5. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
  11. 11.🧭 Where is a tab bar usually placed in a phone app? (a) inside a button (b) in the middle (c) nowhere (d) at the bottom
  12. 12.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 3 to 5 (c) 10 to 12 (d) 20
  13. 13.🧭 Which part of navigation undoes one move? (a) the back button (b) a tab bar (c) a menu button
  14. 14.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap Back
    3. tap the Settings tab
    Which screen are you on now?     (a) Settings (b) Chat (c) Feed (d) Match report
  15. 15.🧭 What does the back button usually do? (a) goes to the last screen (b) deletes the page (c) opens settings (d) closes all apps
  16. 16.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Friend list”
    4. open “Score card”
    Which screen are you on now?     (a) Friend list (b) Lessons (c) Edit photo (d) Score card
  17. 17.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. open “Edit photo”
    3. tap Back
    Which screen are you on now?     (a) Edit photo (b) Chat (c) Feed (d) Match report
  18. 18.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. tap Back
    3. tap the Search tab
    4. open “Edit photo”
    5. open “Help page”
    Which screen are you on now?     (a) Edit photo (b) Home (c) Map (d) Help page
  19. 19.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. tap the Profile tab
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  20. 20.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. tap the Search tab
    4. tap the Search tab
    Which screen are you on now?     (a) Match report (b) Profile (c) Home (d) Search
  21. 21.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap the Profile tab
    3. open “Help page”
    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. tap the Settings tab
    2. open “Badges”
    3. tap Back
    Which screen are you on now?     (a) Feed (b) Settings (c) Badges (d) Chat
  23. 23.Which of these is true of the back button? (a) goes to the last screen (b) opens a list of pages (c) shows 3 to 5 icons (d) switches main sections
  24. 24.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. tap Back
    3. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
  25. 25.🧭 Which part of navigation shows 3 to 5 icons? (a) a tab bar (b) a menu button (c) the back button
  26. 26.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Match report”
    3. open “Score card”
    Which screen are you on now?     (a) Edit photo (b) Match report (c) Feed (d) Score card
  27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Search tab
    3. tap the Search tab
    4. tap the Home tab
    Which screen are you on now?     (a) Search (b) Home (c) Match report (d) Profile
  28. 28.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap the Home tab
    3. open “Badges”
    4. open “Map”
    5. tap the Profile tab
    Which screen are you on now?     (a) Help page (b) Badges (c) Profile (d) Map
  29. 29.🧭 Which part of navigation switches main sections? (a) a tab bar (b) a menu button (c) the back button
  30. 30.🧭 Which part of navigation sits at the bottom? (a) a tab bar (b) the back button (c) a menu button
  31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. open “Help page”
    3. tap Back
    4. tap Back
    Which screen are you on now?     (a) Help page (b) Match report (c) Home (d) Search
  32. 32.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Edit photo”
    3. open “Map”
    4. open “Badges”
    5. tap the Me tab
    Which screen are you on now?     (a) Badges (b) Map (c) Me (d) Edit photo
  33. 33.🧭 Which part of navigation opens a list of pages? (a) a menu button (b) the back button (c) a tab bar
  34. 34.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Edit photo”
    3. open “Score card”
    Which screen are you on now?     (a) Edit photo (b) Home (c) Search (d) Score card
  35. 35.Which of these is true of the back button? (a) switches main sections (b) sits at the bottom (c) undoes one move (d) hides extra links
  36. 36.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. open “Help page”
    3. tap Back
    4. open “Map”
    Which screen are you on now?     (a) Map (b) Help page (c) Feed (d) Score card
  37. 37.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Help page”
    3. tap the Search tab
    4. open “Score card”
    5. tap the Search tab
    Which screen are you on now?     (a) Score card (b) Home (c) Help page (d) Search
  38. 38.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. tap the Profile tab
    4. tap the Search tab
    5. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
  39. 39.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap Back
    3. tap the Quiz tab
    4. tap the Quiz tab
    5. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  40. 40.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap Back
    3. open “Edit photo”
    Which screen are you on now?     (a) Chat (b) Video (c) Feed (d) Edit photo

Answer key

  1. Badges
  2. Help page
  3. so users do not get lost
  4. Home
  5. Home
  6. sits at the bottom
  7. hides extra links
  8. Map
  9. Search
  10. 1
  11. at the bottom
  12. 3 to 5
  13. the back button
  14. Settings
  15. goes to the last screen
  16. Score card
  17. Match report
  18. Help page
  19. 1
  20. Search
  21. 1
  22. Settings
  23. goes to the last screen
  24. 1
  25. a tab bar
  26. Score card
  27. Home
  28. Profile
  29. a tab bar
  30. a tab bar
  31. Home
  32. Me
  33. a menu button
  34. Score card
  35. undoes one move
  36. Map
  37. Search
  38. 1
  39. 1
  40. Edit photo

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