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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 851 · 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. tap the Quiz tab
    2. tap the Quiz tab
    3. open “Video”
    4. tap Back
    5. open “Edit photo”
    Which screen are you on now?
    (a) Edit photo (b) Video (c) Quiz (d) Lessons
  2. 2.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Home tab
    3. open “Badges”
    4. tap the Search tab
    5. open “Badges”
    Which screen are you on now?
    (a) Badges (b) Profile (c) Search (d) Home
  3. 3.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap Back
    3. tap the Settings tab
    Which screen are you on now?
    (a) Chat (b) Feed (c) Settings (d) Friend list
  4. 4.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 20 (c) 10 to 12 (d) 3 to 5
  5. 5.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. open “Match report”
    3. tap the Home tab
    4. open “Help page”
    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. tap the Home tab
    2. open “Match report”
    3. tap Back
    Which screen are you on now?
    (a) Home (b) Search (c) Profile (d) Match report
  7. 7.Which of these is true of a tab bar? (a) goes to the last screen (b) opens a list of pages (c) hides extra links (d) switches main sections
  8. 8.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap the Lessons tab
    3. open “Friend list”
    4. open “Friend list”
    Which screen are you on now?
    (a) Friend list (b) Quiz (c) Lessons (d) Match report
  9. 9.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap Back
    3. open “Edit photo”
    4. open “Edit photo”
    5. tap the Settings tab
    Which screen are you on now?
    (a) Friend list (b) Edit photo (c) Feed (d) Settings
  10. 10.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap the Feed tab
    3. tap the Feed 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 “Video”
    2. tap Back
    3. tap the Home tab
    Which screen are you on now?
    (a) Profile (b) Video (c) Search (d) Home
  12. 12.🧭 Which part of navigation shows 3 to 5 icons? (a) a menu button (b) the back button (c) a tab bar
  13. 13.Which of these is true of a tab bar? (a) shows 3 to 5 icons (b) undoes one move (c) opens a list of pages (d) hides extra links
  14. 14.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap Back
    3. open “Score card”
    Which screen are you on now?
    (a) Lessons (b) Quiz (c) Score card (d) Video
  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.🧭 Which part of navigation undoes one move? (a) a menu button (b) a tab bar (c) the back button
  17. 17.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap the Settings tab
    3. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
  18. 18.🧭 Which part of navigation opens a list of pages? (a) a menu button (b) a tab bar (c) the back button
  19. 19.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap Back
    3. tap the Chat tab
    Which screen are you on now?
    (a) Chat (b) Map (c) Settings (d) Feed
  20. 20.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Help page”
    3. tap the Home tab
    Which screen are you on now?
    (a) Search (b) Home (c) Profile (d) Help page
  21. 21.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. open “Score card”
    3. tap Back
    4. tap Back
    Which screen are you on now?
    (a) Quiz (b) Lessons (c) Score card (d) Badges
  22. 22.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) nowhere (c) inside a button (d) at the bottom
  23. 23.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. tap the Lessons tab
    3. open “Score card”
    4. tap the Me tab
    How many times must you tap Back to reach the main screen of this tab?
  24. 24.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Video”
    3. tap the Lessons tab
    Which screen are you on now?
    (a) Lessons (b) Video (c) Edit photo (d) Quiz
  25. 25.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. tap Back
    3. open “Score card”
    Which screen are you on now?
    (a) Badges (b) Quiz (c) Lessons (d) Score card
  26. 26.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a tab bar (c) a menu button
  27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap the Chat tab
    3. open “Match report”
    4. tap Back
    5. open “Score card”
    Which screen are you on now?
    (a) Feed (b) Match report (c) Edit photo (d) Score card
  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 “Edit photo”
    5. tap the Home tab
    Which screen are you on now?
    (a) Home (b) Edit photo (c) Search (d) Video
  29. 29.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. tap the Lessons tab
    3. open “Help page”
    Which screen are you on now?
    (a) Lessons (b) Badges (c) Quiz (d) Help page
  30. 30.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. open “Edit photo”
    3. tap Back
    Which screen are you on now?
    (a) Feed (b) Edit photo (c) Chat (d) Match report
  31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. open “Score card”
    3. tap Back
    4. tap Back
    5. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
  32. 32.🧭 Which part of navigation hides extra links? (a) a menu button (b) the back button (c) a tab bar
  33. 33.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Friend list”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  34. 34.🧭 What does the back button usually do? (a) opens settings (b) goes to the last screen (c) closes all apps (d) deletes the page
  35. 35.Which of these is true of a menu button? (a) sits at the bottom (b) opens a list of pages (c) switches main sections (d) shows 3 to 5 icons
  36. 36.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Profile tab
    3. open “Help page”
    4. open “Help page”
    Which screen are you on now?
    (a) Search (b) Home (c) Match report (d) Help page
  37. 37.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. open “Edit photo”
    3. tap the Settings tab
    Which screen are you on now?
    (a) Feed (b) Edit photo (c) Settings (d) Friend list
  38. 38.🧭 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 Lessons tab
    Which screen are you on now?
    (a) Me (b) Lessons (c) Quiz
  39. 39.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. open “Friend list”
    4. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
  40. 40.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. tap the Lessons tab
    3. tap the Me tab
    4. open “Map”
    5. open “Match report”
    Which screen are you on now?
    (a) Map (b) Match report (c) Lessons (d) Quiz

Answer key

  1. Edit photo
  2. Badges
  3. Settings
  4. 3 to 5
  5. 1
  6. Home
  7. switches main sections
  8. Friend list
  9. Settings
  10. 0
  11. Home
  12. a tab bar
  13. shows 3 to 5 icons
  14. Score card
  15. the back button
  16. the back button
  17. 1
  18. a menu button
  19. Chat
  20. Home
  21. Lessons
  22. at the bottom
  23. 0
  24. Lessons
  25. Score card
  26. a tab bar
  27. Score card
  28. Home
  29. Help page
  30. Match report
  31. 1
  32. a menu button
  33. 0
  34. goes to the last screen
  35. opens a list of pages
  36. Help page
  37. Settings
  38. Lessons
  39. 0
  40. Match report

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