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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 472 · 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) 20 (b) 10 to 12 (c) 1 (d) 3 to 5
  2. 2.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Friend list”
    3. open “Edit photo”
    Which screen are you on now?     (a) Feed (b) Chat (c) Friend list (d) Edit photo
  3. 3.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Help page”
    Which screen are you on now?     (a) Edit photo (b) Quiz (c) Lessons (d) Help page
  4. 4.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. tap the Home tab
    3. open “Edit photo”
    4. open “Map”
    Which screen are you on now?     (a) Edit photo (b) Badges (c) Map (d) Home
  5. 5.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) undoes one move (c) goes to the last screen (d) opens a list of pages
  6. 6.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. tap Back
    3. tap the Lessons tab
    4. open “Edit photo”
    5. tap the Quiz tab
    Which screen are you on now?     (a) Quiz (b) Lessons (c) Badges (d) Edit photo
  7. 7.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Search tab
    3. open “Score card”
    4. open “Match report”
    5. tap the Profile tab
    How many times must you tap Back to reach the main screen of this tab?
  8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap the Home tab
    3. open “Edit photo”
    4. tap the Home tab
    5. open “Match report”
    Which screen are you on now?     (a) Edit photo (b) Match report (c) Home (d) Friend list
  9. 9.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. open “Edit photo”
    3. open “Help page”
    4. open “Help page”
    5. tap Back
    Which screen are you on now?     (a) Feed (b) Edit photo (c) Help page (d) Map
  10. 10.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Badges”
    3. open “Friend list”
    Which screen are you on now?     (a) Badges (b) Lessons (c) Friend list (d) Quiz
  11. 11.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. open “Score card”
    3. open “Badges”
    4. open “Match report”
    5. tap the Me tab
    Which screen are you on now?     (a) Score card (b) Badges (c) Match report (d) Me
  12. 12.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Match report”
    3. open “Video”
    4. open “Badges”
    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. tap the Feed tab
    2. open “Video”
    3. open “Score card”
    Which screen are you on now?     (a) Score card (b) Feed (c) Video (d) Chat
  14. 14.🧭 Which part of navigation undoes one move? (a) the back button (b) a menu button (c) a tab bar
  15. 15.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Video”
    3. tap the Feed tab
    Which screen are you on now?     (a) Edit photo (b) Video (c) Feed (d) Chat
  16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Help page”
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Edit photo”
    3. open “Badges”
    Which screen are you on now?     (a) Edit photo (b) Badges (c) Quiz (d) Lessons
  18. 18.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. open “Badges”
    3. tap the Chat tab
    4. open “Map”
    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. tap the Settings tab
    2. tap the Settings tab
    3. open “Edit photo”
    4. tap the Feed tab
    5. open “Friend list”
    Which screen are you on now?     (a) Edit photo (b) Chat (c) Friend list (d) Feed
  20. 20.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. open “Badges”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  21. 21.Which of these is true of a menu button? (a) switches main sections (b) hides extra links (c) undoes one move (d) sits at the bottom
  22. 22.🧭 Which part of navigation switches main sections? (a) a menu button (b) the back button (c) a tab bar
  23. 23.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Badges”
    3. tap Back
    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. tap the Profile tab
    2. open “Help page”
    3. open “Friend list”
    4. open “Map”
    Which screen are you on now?     (a) Friend list (b) Map (c) Home (d) Help page
  25. 25.Which of these is true of the back button? (a) shows 3 to 5 icons (b) sits at the bottom (c) undoes one move (d) opens a list of pages
  26. 26.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap the Quiz tab
    3. tap the Me tab
    How many times must you tap Back to reach the main screen of this tab?
  27. 27.🧭 Which part of navigation shows 3 to 5 icons? (a) a menu button (b) a tab bar (c) the back button
  28. 28.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Video”
    3. tap Back
    4. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
  29. 29.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. tap the Me tab
    3. tap the Quiz tab
    4. open “Score card”
    Which screen are you on now?     (a) Quiz (b) Score card (c) Me (d) Lessons
  30. 30.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Search tab
    3. open “Map”
    Which screen are you on now?     (a) Home (b) Map (c) Match report (d) Search
  31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. tap the Profile tab
    3. tap the Search tab
    4. tap the Search tab
    Which screen are you on now?     (a) Badges (b) Home (c) Search (d) Profile
  32. 32.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap Back
    3. open “Edit photo”
    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”
    Which screen are you on now?     (a) Quiz (b) Video (c) Match report (d) Lessons
  34. 34.🧭 Which part of navigation opens a list of pages? (a) a tab bar (b) the back button (c) a menu button
  35. 35.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap the Chat tab
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
  36. 36.Which of these is true of the back button? (a) sits at the bottom (b) opens a list of pages (c) goes to the last screen (d) hides extra links
  37. 37.🧭 Where is a tab bar usually placed in a phone app? (a) inside a button (b) in the middle (c) at the bottom (d) nowhere
  38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap the Chat tab
    3. open “Map”
    4. tap the Settings tab
    5. open “Score card”
    Which screen are you on now?     (a) Feed (b) Score card (c) Map (d) Chat
  39. 39.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. open “Score card”
    3. tap Back
    4. tap Back
    Which screen are you on now?     (a) Score card (b) Chat (c) Match report (d) Feed
  40. 40.🧭 Why should every screen show where you are? (a) to use more battery (b) to hide the menu (c) to look busy (d) so users do not get lost

Answer key

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

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