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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 494 · 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 Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap Back
    3. open “Edit photo”
    4. tap the Chat tab
    5. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
  2. 2.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap the Quiz tab
    3. open “Edit photo”
    4. open “Map”
    5. open “Badges”
    Which screen are you on now?     (a) Edit photo (b) Map (c) Lessons (d) Badges
  3. 3.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap Back
    3. open “Edit photo”
    4. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  4. 4.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap Back
    3. open “Score card”
    4. tap the Me tab
    How many times must you tap Back to reach the main screen of this tab?
  5. 5.🧭 Which part of navigation opens a list of pages? (a) a tab bar (b) the back button (c) a menu button
  6. 6.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. tap the Quiz tab
    3. open “Video”
    4. tap the Quiz tab
    5. open “Edit photo”
    Which screen are you on now?     (a) Lessons (b) Edit photo (c) Video (d) Quiz
  7. 7.🧭 What does the back button usually do? (a) deletes the page (b) closes all apps (c) goes to the last screen (d) opens settings
  8. 8.🧭 Which part of navigation hides extra links? (a) a tab bar (b) the back button (c) a menu button
  9. 9.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 10 to 12 (c) 20 (d) 3 to 5
  10. 10.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. tap Back
    3. tap the Profile tab
    4. open “Friend list”
    5. tap the Home tab
    Which screen are you on now?     (a) Badges (b) Home (c) Search (d) Friend list
  11. 11.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Friend list”
    3. tap the Quiz tab
    4. tap the Quiz tab
    Which screen are you on now?     (a) Me (b) Lessons (c) Friend list (d) Quiz
  12. 12.Which of these is true of a tab bar? (a) opens a list of pages (b) undoes one move (c) hides extra links (d) switches main sections
  13. 13.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Badges”
    3. tap Back
    4. open “Match report”
    Which screen are you on now?     (a) Match report (b) Home (c) Badges (d) Map
  14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. open “Edit photo”
    Which screen are you on now?     (a) Edit photo (b) Home (c) Match report (d) Search
  15. 15.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) switches main sections (c) sits at the bottom (d) opens a list of pages
  16. 16.🧭 Which part of navigation sits at the bottom? (a) a tab bar (b) the back button (c) a menu button
  17. 17.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Help page”
    3. tap the Home tab
    4. tap the Profile tab
    Which screen are you on now?     (a) Search (b) Profile (c) Help page (d) Home
  18. 18.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. 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 Chat tab
    2. open “Edit photo”
    3. tap the Chat tab
    4. open “Match report”
    5. tap the Chat tab
    How many times must you tap Back to reach the main screen of this tab?
  20. 20.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Score card”
    3. tap Back
    4. tap Back
    5. open “Match report”
    Which screen are you on now?     (a) Help page (b) Score card (c) Home (d) Match report
  21. 21.Which of these is true of the back button? (a) sits at the bottom (b) goes to the last screen (c) opens a list of pages (d) hides extra links
  22. 22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. tap the Profile tab
    3. open “Score card”
    4. tap Back
    5. tap the Profile tab
    Which screen are you on now?     (a) Score card (b) Search (c) Home (d) Profile
  23. 23.🧭 Which part of navigation shows 3 to 5 icons? (a) a menu button (b) the back button (c) a tab bar
  24. 24.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap the Settings tab
    3. tap the Chat tab
    4. open “Friend list”
    5. tap the Settings tab
    How many times must you tap Back to reach the main screen of this tab?
  25. 25.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. open “Badges”
    3. open “Friend list”
    Which screen are you on now?     (a) Search (b) Badges (c) Friend list (d) Home
  26. 26.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. tap Back
    3. open “Friend list”
    4. open “Map”
    Which screen are you on now?     (a) Badges (b) Map (c) Lessons (d) Friend list
  27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap the Profile tab
    3. open “Edit photo”
    4. tap Back
    5. open “Help page”
    Which screen are you on now?     (a) Video (b) Help page (c) Edit photo (d) Home
  28. 28.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap the Chat tab
    3. open “Score card”
    Which screen are you on now?     (a) Score card (b) Chat (c) Match report (d) Feed
  29. 29.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap Back
    3. open “Friend list”
    4. tap Back
    Which screen are you on now?     (a) Friend list (b) Feed (c) Match report (d) Chat
  30. 30.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. tap the Me tab
    3. tap the Me tab
    4. open “Score card”
    5. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
  31. 31.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap the Settings tab
    3. open “Edit photo”
    4. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
  32. 32.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap Back
    3. open “Score card”
    4. tap Back
    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) a tab bar (b) the back button (c) a menu button
  34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap the Quiz tab
    3. open “Match report”
    Which screen are you on now?     (a) Quiz (b) Lessons (c) Match report (d) Edit photo
  35. 35.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap the Chat tab
    3. tap the Feed tab
    4. open “Friend list”
    5. open “Match report”
    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 the Search tab
    3. open “Edit photo”
    4. tap Back
    5. open “Match report”
    Which screen are you on now?     (a) Home (b) Search (c) Edit photo (d) Match report
  37. 37.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Friend list”
    3. open “Friend list”
    Which screen are you on now?     (a) Friend list (b) Quiz (c) Lessons (d) Me
  38. 38.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. open “Match report”
    3. open “Match report”
    Which screen are you on now?     (a) Match report (b) Profile (c) Home (d) Search
  39. 39.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Score card”
    3. tap the Quiz 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. open “Video”
    3. open “Edit photo”
    Which screen are you on now?     (a) Video (b) Quiz (c) Lessons (d) Edit photo

Answer key

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

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