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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 398 · 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. open “Edit photo”
    2. tap Back
    3. open “Video”
    4. tap Back
    Which screen are you on now?     (a) Video (b) Edit photo (c) Lessons (d) Quiz
  2. 2.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. open “Video”
    3. tap the Profile tab
    4. open “Video”
    Which screen are you on now?     (a) Friend list (b) Home (c) Search (d) Video
  3. 3.🧭 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
  4. 4.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. tap the Home tab
    3. open “Score card”
    4. open “Edit photo”
    5. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
  5. 5.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap the Settings tab
    3. tap the Chat tab
    Which screen are you on now?     (a) Map (b) Chat (c) Settings (d) Feed
  6. 6.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. open “Friend list”
    3. tap the Lessons tab
    Which screen are you on now?     (a) Lessons (b) Friend list (c) Match report (d) Quiz
  7. 7.Which of these is true of a menu button? (a) switches main sections (b) goes to the last screen (c) hides extra links (d) sits at the bottom
  8. 8.Which of these is true of a tab bar? (a) hides extra links (b) undoes one move (c) switches main sections (d) opens a list of pages
  9. 9.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Match report”
    3. tap the Profile tab
    4. open “Badges”
    5. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?
  10. 10.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Friend list”
    3. tap the Feed tab
    4. tap the Feed tab
    5. tap the Settings tab
    Which screen are you on now?     (a) Friend list (b) Settings (c) Feed (d) Chat
  11. 11.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Friend list”
    3. tap the Feed tab
    4. open “Badges”
    5. tap Back
    Which screen are you on now?     (a) Badges (b) Chat (c) Feed (d) Friend list
  12. 12.🧭 Which part of navigation opens a list of pages? (a) a tab bar (b) the back button (c) a menu button
  13. 13.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. open “Friend list”
    3. open “Help page”
    Which screen are you on now?     (a) Feed (b) Friend list (c) Help page (d) Chat
  14. 14.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Help page”
    3. tap Back
    4. open “Video”
    5. tap the Chat tab
    How many times must you tap Back to reach the main screen of this tab?
  15. 15.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. open “Map”
    3. tap the Quiz tab
    4. open “Match report”
    5. tap the Lessons tab
    How many times must you tap Back to reach the main screen of this tab?
  16. 16.Which of these is true of a tab bar? (a) goes to the last screen (b) sits at the bottom (c) opens a list of pages (d) undoes one move
  17. 17.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap the Profile tab
    3. open “Score card”
    4. open “Score card”
    Which screen are you on now?     (a) Home (b) Help page (c) Score card (d) Search
  18. 18.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap Back
    3. open “Match report”
    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 “Match report”
    2. open “Edit photo”
    3. tap the Quiz tab
    Which screen are you on now?     (a) Match report (b) Quiz (c) Edit photo (d) Lessons
  20. 20.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. tap the Lessons tab
    3. open “Match report”
    4. open “Badges”
    Which screen are you on now?     (a) Quiz (b) Match report (c) Badges (d) Lessons
  21. 21.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap the Feed tab
    3. open “Friend list”
    Which screen are you on now?     (a) Chat (b) Map (c) Feed (d) Friend list
  22. 22.Which of these is true of a tab bar? (a) undoes one move (b) goes to the last screen (c) hides extra links (d) shows 3 to 5 icons
  23. 23.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. tap the Home tab
    3. open “Video”
    4. tap Back
    5. tap the Home tab
    Which screen are you on now?     (a) Search (b) Video (c) Home (d) Profile
  24. 24.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap Back
    3. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
  25. 25.🧭 What does the back button usually do? (a) closes all apps (b) opens settings (c) goes to the last screen (d) deletes the page
  26. 26.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 20 (c) 10 to 12 (d) 3 to 5
  27. 27.Which of these is true of a menu button? (a) opens a list of pages (b) sits at the bottom (c) shows 3 to 5 icons (d) switches main sections
  28. 28.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap Back
    3. tap the Quiz tab
    Which screen are you on now?     (a) Lessons (b) Score card (c) Quiz (d) Me
  29. 29.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Friend list”
    3. tap the Me tab
    4. open “Friend list”
    5. open “Help page”
    Which screen are you on now?     (a) Friend list (b) Quiz (c) Lessons (d) Help page
  30. 30.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap the Profile tab
    3. tap the Home tab
    4. tap the Home tab
    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. tap the Home tab
    2. tap the Home tab
    3. open “Edit photo”
    4. tap the Home tab
    5. open “Map”
    Which screen are you on now?     (a) Map (b) Home (c) Search (d) Edit photo
  32. 32.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap the Chat tab
    3. open “Badges”
    4. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  33. 33.🧭 Which part of navigation switches main sections? (a) the back button (b) a tab bar (c) a menu button
  34. 34.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap Back
    3. open “Friend list”
    4. tap the Chat tab
    How many times must you tap Back to reach the main screen of this tab?
  35. 35.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap the Settings tab
    3. open “Friend list”
    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 “Match report”
    2. tap Back
    3. open “Edit photo”
    4. open “Friend list”
    5. tap Back
    Which screen are you on now?     (a) Friend list (b) Match report (c) Home (d) Edit photo
  37. 37.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. tap the Feed tab
    3. open “Badges”
    Which screen are you on now?     (a) Feed (b) Chat (c) Settings (d) Badges
  38. 38.Which of these is true of the back button? (a) undoes one move (b) switches main sections (c) opens a list of pages (d) hides extra links
  39. 39.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Edit photo”
    3. tap the Me tab
    Which screen are you on now?     (a) Edit photo (b) Lessons (c) Quiz (d) Me
  40. 40.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. open “Video”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?

Answer key

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

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