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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 292 · 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 menu button? (a) shows 3 to 5 icons (b) goes to the last screen (c) opens a list of pages (d) switches main sections
  2. 2.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Score card”
    3. tap the Home tab
    Which screen are you on now?     (a) Search (b) Score card (c) Profile (d) Home
  3. 3.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. tap the Profile tab
    3. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
  4. 4.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap the Chat tab
    3. open “Badges”
    Which screen are you on now?     (a) Badges (b) Feed (c) Score card (d) Chat
  5. 5.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. tap Back
    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?
  6. 6.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap Back
    3. open “Edit photo”
    4. open “Edit photo”
    Which screen are you on now?     (a) Search (b) Friend list (c) Edit photo (d) Home
  7. 7.🧭 Which part of navigation goes to the last screen? (a) the back button (b) a menu button (c) a tab bar
  8. 8.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. open “Match report”
    3. tap the Quiz tab
    4. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
  9. 9.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap the Search tab
    3. tap the Home tab
    4. open “Friend list”
    5. tap Back
    Which screen are you on now?     (a) Search (b) Score card (c) Home (d) Friend list
  10. 10.🧭 Which part of navigation opens a list of pages? (a) the back button (b) a menu button (c) a tab bar
  11. 11.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. open “Edit photo”
    Which screen are you on now?     (a) Help page (b) Edit photo (c) Search (d) Home
  12. 12.🧭 Which part of navigation undoes one move? (a) the back button (b) a menu button (c) a tab bar
  13. 13.Which of these is true of a tab bar? (a) goes to the last screen (b) shows 3 to 5 icons (c) hides extra links (d) undoes one move
  14. 14.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. open “Score card”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  15. 15.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. open “Badges”
    3. tap Back
    Which screen are you on now?     (a) Feed (b) Match report (c) Chat (d) Badges
  16. 16.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Help page”
    3. tap the Feed tab
    Which screen are you on now?     (a) Chat (b) Settings (c) Help page (d) Feed
  17. 17.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Score card”
    3. tap the Search tab
    Which screen are you on now?     (a) Search (b) Home (c) Score card (d) Profile
  18. 18.Which of these is true of a menu button? (a) goes to the last screen (b) sits at the bottom (c) hides extra links (d) undoes one move
  19. 19.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 3 to 5 (c) 20 (d) 10 to 12
  20. 20.Which of these is true of the back button? (a) hides extra links (b) shows 3 to 5 icons (c) undoes one move (d) sits at the bottom
  21. 21.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap the Home tab
    3. tap the Home tab
    4. open “Score card”
    Which screen are you on now?     (a) Search (b) Edit photo (c) Score card (d) Home
  22. 22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap the Search tab
    3. open “Match report”
    4. open “Friend list”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  23. 23.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. open “Score card”
    3. open “Edit photo”
    Which screen are you on now?     (a) Edit photo (b) Score card (c) Lessons (d) Badges
  24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap Back
    3. open “Edit photo”
    4. tap Back
    5. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
  25. 25.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. tap the Settings tab
    3. tap the Chat tab
    4. tap the Feed tab
    Which screen are you on now?     (a) Chat (b) Feed (c) Settings
  26. 26.🧭 Which part of navigation switches main sections? (a) a menu button (b) a tab bar (c) the back button
  27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap the Feed tab
    3. tap the Feed tab
    4. tap the Settings tab
    5. open “Match report”
    Which screen are you on now?     (a) Friend list (b) Feed (c) Match report (d) Chat
  28. 28.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap the Quiz tab
    3. open “Edit photo”
    4. tap the Me tab
    5. open “Help page”
    Which screen are you on now?     (a) Edit photo (b) Help page (c) Lessons (d) Video
  29. 29.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Edit photo”
    3. tap Back
    4. tap the Chat tab
    5. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
  30. 30.Which of these is true of the back button? (a) switches main sections (b) hides extra links (c) shows 3 to 5 icons (d) goes to the last screen
  31. 31.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. tap the Feed tab
    3. open “Video”
    Which screen are you on now?     (a) Video (b) Settings (c) Feed (d) Chat
  32. 32.🧭 Which part of navigation hides extra links? (a) a tab bar (b) a menu button (c) the back button
  33. 33.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. tap the Search tab
    3. tap the Profile tab
    4. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
  34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. tap the Lessons tab
    3. open “Friend list”
    4. tap Back
    5. tap the Quiz tab
    Which screen are you on now?     (a) Badges (b) Lessons (c) Friend list (d) Quiz
  35. 35.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Badges”
    3. tap Back
    4. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
  36. 36.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, 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?
  37. 37.🧭 Why should every screen show where you are? (a) to use more battery (b) so users do not get lost (c) to look busy (d) to hide the menu
  38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Video”
    3. tap Back
    4. tap the Feed tab
    Which screen are you on now?     (a) Video (b) Settings (c) Chat (d) Feed
  39. 39.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a menu button (c) a tab bar
  40. 40.🧭 What does the back button usually do? (a) closes all apps (b) deletes the page (c) opens settings (d) goes to the last screen

Answer key

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

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