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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 333 · 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.

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

Answer key

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

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