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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 818 · 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) undoes one move (b) goes to the last screen (c) hides extra links (d) switches main sections
  2. 2.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Badges”
    3. tap the Feed tab
    4. tap the Chat tab
    How many times must you tap Back to reach the main screen of this tab?
  3. 3.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Match report”
    3. tap Back
    4. tap the Feed tab
    Which screen are you on now?
    (a) Chat (b) Settings (c) Match report (d) Feed
  4. 4.🧭 Which part of navigation goes to the last screen? (a) a menu button (b) a tab bar (c) the back button
  5. 5.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 1 (c) 3 to 5 (d) 10 to 12
  6. 6.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Map”
    3. tap the Feed tab
    Which screen are you on now?
    (a) Edit photo (b) Chat (c) Feed (d) Map
  7. 7.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Badges”
    3. tap Back
    4. open “Video”
    5. open “Edit photo”
    Which screen are you on now?
    (a) Video (b) Edit photo (c) Badges (d) Home
  8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Friend list”
    3. open “Badges”
    4. open “Help page”
    Which screen are you on now?
    (a) Friend list (b) Home (c) Help page (d) Badges
  9. 9.🧭 Which part of navigation switches main sections? (a) a menu button (b) a tab bar (c) the back button
  10. 10.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap the Chat tab
    3. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
  11. 11.Which of these is true of the back button? (a) goes to the last screen (b) opens a list of pages (c) sits at the bottom (d) switches main sections
  12. 12.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Match report”
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
  13. 13.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap the Search tab
    3. tap the Home tab
    4. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?
  14. 14.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap Back
    3. open “Edit photo”
    Which screen are you on now?
    (a) Chat (b) Help page (c) Edit photo (d) Feed
  15. 15.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap the Quiz tab
    3. open “Help page”
    4. tap Back
    5. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
  16. 16.🧭 Which part of navigation opens a list of pages? (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. open “Match report”
    2. tap the Profile tab
    3. tap the Search tab
    Which screen are you on now?
    (a) Home (b) Profile (c) Match report (d) Search
  18. 18.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) the back button (c) a tab bar
  19. 19.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. tap the Chat tab
    3. open “Map”
    4. tap the Chat tab
    5. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
  20. 20.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Help page”
    3. tap the Me tab
    4. open “Map”
    5. tap Back
    Which screen are you on now?
    (a) Lessons (b) Help page (c) Me (d) Map
  21. 21.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. open “Map”
    4. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
  22. 22.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap Back
    3. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
  23. 23.Which of these is true of the back button? (a) sits at the bottom (b) undoes one move (c) switches main sections (d) hides extra links
  24. 24.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. open “Map”
    3. tap the Feed tab
    Which screen are you on now?
    (a) Feed (b) Chat (c) Settings (d) Map
  25. 25.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap the Lessons tab
    3. open “Map”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  26. 26.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. tap Back
    3. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
  27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap the Feed tab
    3. open “Match report”
    4. tap the Chat tab
    Which screen are you on now?
    (a) Feed (b) Match report (c) Video (d) Chat
  28. 28.🧭 Which part of navigation hides extra links? (a) a tab bar (b) the back button (c) a menu button
  29. 29.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap Back
    3. open “Friend list”
    4. 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 tab bar? (a) sits at the bottom (b) goes to the last screen (c) opens a list of pages (d) hides extra links
  31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. open “Map”
    4. open “Score card”
    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 “Match report”
    2. tap the Settings tab
    3. open “Edit photo”
    Which screen are you on now?
    (a) Edit photo (b) Match report (c) Chat (d) Feed
  33. 33.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. tap the Chat tab
    3. tap the Chat tab
    Which screen are you on now?
    (a) Feed (b) Chat (c) Settings
  34. 34.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. tap the Search tab
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
  35. 35.🧭 What does the back button usually do? (a) closes all apps (b) deletes the page (c) goes to the last screen (d) opens settings
  36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap Back
    3. open “Edit photo”
    4. tap the Quiz tab
    5. tap the Me tab
    Which screen are you on now?
    (a) Lessons (b) Edit photo (c) Friend list (d) Me
  37. 37.Which of these is true of a menu button? (a) undoes one move (b) opens a list of pages (c) switches main sections (d) sits at the bottom
  38. 38.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. tap the Quiz tab
    3. tap the Quiz tab
    4. tap the Me tab
    5. open “Match report”
    Which screen are you on now?
    (a) Lessons (b) Quiz (c) Me (d) Match report
  39. 39.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Score card”
    3. tap the Profile tab
    4. tap the Profile tab
    5. tap the Home tab
    Which screen are you on now?
    (a) Score card (b) Search (c) Home (d) Help page
  40. 40.🧭 Why should every screen show where you are? (a) to use more battery (b) to look busy (c) to hide the menu (d) so users do not get lost

Answer key

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

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