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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 692 · 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.🧭 What does the back button usually do? (a) closes all apps (b) goes to the last screen (c) opens settings (d) deletes the page
  2. 2.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. tap Back
    3. open “Badges”
    4. tap Back
    Which screen are you on now?     (a) Me (b) Quiz (c) Badges (d) Lessons
  3. 3.Which of these is true of a tab bar? (a) hides extra links (b) undoes one move (c) switches main sections (d) goes to the last screen
  4. 4.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap the Quiz tab
    3. tap the Lessons tab
    4. open “Edit photo”
    5. tap the Lessons tab
    How many times must you tap Back to reach the main screen of this tab?
  5. 5.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. open “Score card”
    4. tap the Search tab
    5. open “Badges”
    Which screen are you on now?     (a) Home (b) Score card (c) Badges (d) Match report
  6. 6.🧭 Where is a tab bar usually placed in a phone app? (a) nowhere (b) at the bottom (c) in the middle (d) inside a button
  7. 7.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. tap the Feed tab
    3. tap the Settings tab
    Which screen are you on now?     (a) Chat (b) Settings (c) Feed
  8. 8.🧭 Which part of navigation undoes one move? (a) the back button (b) a menu button (c) a tab bar
  9. 9.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap the Quiz tab
    3. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
  10. 10.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Score card”
    3. tap the Lessons 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 “Map”
    2. tap Back
    3. tap the Search tab
    4. open “Badges”
    5. tap the Home tab
    Which screen are you on now?     (a) Map (b) Search (c) Home (d) Badges
  12. 12.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Badges”
    3. tap Back
    4. tap the Profile tab
    5. open “Edit photo”
    Which screen are you on now?     (a) Edit photo (b) Search (c) Badges (d) Home
  13. 13.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. open “Score card”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  14. 14.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
  15. 15.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Score card”
    3. tap Back
    4. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
  16. 16.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap the Chat tab
    3. tap the Chat tab
    4. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
  17. 17.Which of these is true of the back button? (a) switches main sections (b) goes to the last screen (c) sits at the bottom (d) shows 3 to 5 icons
  18. 18.Which of these is true of the back button? (a) switches main sections (b) undoes one move (c) sits at the bottom (d) hides extra links
  19. 19.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. open “Video”
    3. tap the Feed tab
    4. open “Edit photo”
    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 “Map”
    2. tap Back
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  21. 21.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 10 to 12 (c) 3 to 5 (d) 1
  22. 22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. tap the Profile tab
    How many times must you tap Back to reach the main screen of this tab?
  23. 23.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap the Feed tab
    3. open “Help page”
    4. tap the Feed tab
    5. open “Badges”
    Which screen are you on now?     (a) Badges (b) Feed (c) Friend list (d) Help page
  24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Badges”
    3. open “Map”
    4. tap Back
    Which screen are you on now?     (a) Home (b) Map (c) Badges (d) Search
  25. 25.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. open “Friend list”
    3. open “Friend list”
    4. open “Edit photo”
    Which screen are you on now?     (a) Match report (b) Friend list (c) Home (d) Edit photo
  26. 26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap the Search tab
    3. open “Badges”
    4. open “Map”
    Which screen are you on now?     (a) Map (b) Badges (c) Home (d) Edit photo
  27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap Back
    3. open “Friend list”
    4. open “Score card”
    5. tap Back
    Which screen are you on now?     (a) Home (b) Score card (c) Video (d) Friend list
  28. 28.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap Back
    3. open “Help page”
    Which screen are you on now?     (a) Help page (b) Quiz (c) Lessons (d) Video
  29. 29.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Edit photo”
    3. tap Back
    4. open “Edit photo”
    5. tap the Chat tab
    Which screen are you on now?     (a) Chat (b) Edit photo (c) Settings (d) Feed
  30. 30.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Video”
    3. tap Back
    Which screen are you on now?     (a) Video (b) Lessons (c) Quiz (d) Me
  31. 31.🧭 Which part of navigation opens a list of pages? (a) a menu button (b) a tab bar (c) the back button
  32. 32.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. open “Video”
    3. open “Edit photo”
    4. tap Back
    5. open “Video”
    Which screen are you on now?     (a) Feed (b) Friend list (c) Video (d) Edit photo
  33. 33.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap Back
    3. open “Edit photo”
    4. open “Help page”
    Which screen are you on now?     (a) Lessons (b) Help page (c) Friend list (d) Edit photo
  34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap Back
    3. open “Help page”
    4. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  35. 35.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Map”
    3. tap the Me 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 “Badges”
    2. open “Edit photo”
    3. tap Back
    4. tap Back
    5. tap the Settings tab
    Which screen are you on now?     (a) Feed (b) Edit photo (c) Settings (d) Badges
  37. 37.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Badges”
    3. tap Back
    4. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
  38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. tap the Feed tab
    3. open “Score card”
    4. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
  39. 39.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap the Home tab
    3. tap the Search tab
    4. tap the Home tab
    Which screen are you on now?     (a) Home (b) Profile (c) Search (d) Edit photo
  40. 40.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap Back
    3. open “Video”
    4. tap Back
    5. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?

Answer key

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

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