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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 181 · 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) goes to the last screen (c) switches main sections (d) opens a list of pages
  2. 2.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap Back
    3. open “Match report”
    4. tap the Chat tab
    Which screen are you on now?     (a) Feed (b) Map (c) Chat (d) Match report
  3. 3.🧭 What does the back button usually do? (a) deletes the page (b) closes all apps (c) goes to the last screen (d) opens settings
  4. 4.🧭 Which part of navigation shows 3 to 5 icons? (a) a menu button (b) a tab bar (c) the back button
  5. 5.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. open “Edit photo”
    3. tap the Feed tab
    Which screen are you on now?     (a) Edit photo (b) Chat (c) Help page (d) Feed
  6. 6.Which of these is true of the back button? (a) opens a list of pages (b) shows 3 to 5 icons (c) switches main sections (d) goes to the last screen
  7. 7.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. open “Badges”
    3. tap Back
    4. tap Back
    5. open “Score card”
    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 “Match report”
    2. tap Back
    3. tap the Profile tab
    4. open “Score card”
    5. open “Edit photo”
    Which screen are you on now?     (a) Home (b) Edit photo (c) Match report (d) Score card
  9. 9.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Edit photo”
    3. open “Badges”
    4. tap the Feed tab
    5. open “Friend list”
    Which screen are you on now?     (a) Feed (b) Edit photo (c) Badges (d) Friend list
  10. 10.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap the Feed tab
    3. tap the Feed tab
    4. tap the Settings tab
    How many times must you tap Back to reach the main screen of this tab?
  11. 11.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap Back
    3. open “Friend list”
    4. open “Video”
    5. tap Back
    Which screen are you on now?     (a) Video (b) Search (c) Home (d) Friend list
  12. 12.🧭 Why should every screen show where you are? (a) to look busy (b) to use more battery (c) to hide the menu (d) so users do not get lost
  13. 13.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap Back
    3. open “Match report”
    4. tap Back
    5. open “Video”
    Which screen are you on now?     (a) Friend list (b) Feed (c) Video (d) Match report
  14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap the Search tab
    3. tap the Home tab
    4. tap the Search tab
    5. open “Badges”
    Which screen are you on now?     (a) Help page (b) Badges (c) Search (d) Home
  15. 15.Which of these is true of a tab bar? (a) undoes one move (b) hides extra links (c) opens a list of pages (d) sits at the bottom
  16. 16.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap the Settings tab
    3. open “Friend list”
    Which screen are you on now?     (a) Feed (b) Map (c) Chat (d) Friend list
  17. 17.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. tap the Home tab
    3. open “Edit photo”
    Which screen are you on now?     (a) Search (b) Home (c) Edit photo (d) Profile
  18. 18.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. open “Badges”
    3. tap Back
    4. tap the Quiz tab
    5. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
  19. 19.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap the Quiz tab
    3. open “Map”
    4. open “Help page”
    Which screen are you on now?     (a) Map (b) Help page (c) Lessons (d) Video
  20. 20.🧭 Which part of navigation hides extra links? (a) the back button (b) a tab bar (c) a menu button
  21. 21.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap the Quiz tab
    3. open “Edit photo”
    4. tap Back
    5. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
  22. 22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Video”
    3. tap Back
    4. open “Friend list”
    5. tap Back
    Which screen are you on now?     (a) Video (b) Home (c) Friend list (d) Profile
  23. 23.Which of these is true of a tab bar? (a) hides extra links (b) shows 3 to 5 icons (c) goes to the last screen (d) opens a list of pages
  24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Score card”
    3. open “Match report”
    4. tap Back
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  25. 25.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) a tab bar (c) the back button
  26. 26.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Edit photo”
    3. tap the Me tab
    4. open “Edit photo”
    Which screen are you on now?     (a) Lessons (b) Quiz (c) Edit photo (d) Me
  27. 27.🧭 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 “Match report”
    5. tap the Chat tab
    Which screen are you on now?     (a) Badges (b) Chat (c) Match report (d) Feed
  28. 28.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. open “Friend list”
    3. open “Match report”
    Which screen are you on now?     (a) Score card (b) Match report (c) Friend list (d) Feed
  29. 29.🧭 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 the Feed tab
    5. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
  30. 30.Which of these is true of a menu button? (a) undoes one move (b) hides extra links (c) sits at the bottom (d) switches main sections
  31. 31.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Friend list”
    3. tap the Quiz tab
    4. open “Score card”
    Which screen are you on now?     (a) Lessons (b) Score card (c) Friend list (d) Quiz
  32. 32.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. open “Score card”
    3. open “Match report”
    4. tap Back
    Which screen are you on now?     (a) Match report (b) Help page (c) Score card (d) Lessons
  33. 33.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Score card”
    3. open “Badges”
    Which screen are you on now?     (a) Feed (b) Chat (c) Score card (d) Badges
  34. 34.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Badges”
    3. open “Match report”
    4. tap Back
    Which screen are you on now?     (a) Feed (b) Match report (c) Edit photo (d) Badges
  35. 35.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap the Settings tab
    3. open “Edit photo”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  36. 36.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap Back
    3. tap the Home tab
    Which screen are you on now?     (a) Search (b) Profile (c) Home (d) Edit photo
  37. 37.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap the Lessons tab
    3. open “Friend list”
    4. open “Help page”
    5. tap the Me tab
    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 “Friend list”
    2. tap the Search tab
    3. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
  39. 39.🧭 Which part of navigation opens a list of pages? (a) the back button (b) a menu button (c) a tab bar
  40. 40.🧭 About how many tabs suit a tab bar best? (a) 10 to 12 (b) 20 (c) 3 to 5 (d) 1

Answer key

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

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