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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 224 · 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. open “Badges”
    2. tap the Quiz tab
    3. open “Friend list”
    4. open “Map”
    Which screen are you on now?     (a) Badges (b) Lessons (c) Map (d) Friend list
  2. 2.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. tap the Me tab
    3. open “Help page”
    4. open “Video”
    Which screen are you on now?     (a) Video (b) Help page (c) Lessons (d) Quiz
  3. 3.🧭 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
  4. 4.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. tap Back
    3. tap the Feed tab
    Which screen are you on now?     (a) Chat (b) Badges (c) Settings (d) Feed
  5. 5.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. open “Video”
    3. open “Match report”
    4. open “Match report”
    5. tap the Lessons tab
    Which screen are you on now?     (a) Lessons (b) Video (c) Badges (d) Match report
  6. 6.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 1 (c) 3 to 5 (d) 10 to 12
  7. 7.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Badges”
    3. tap the Profile tab
    Which screen are you on now?     (a) Badges (b) Map (c) Home (d) Profile
  8. 8.Which of these is true of a tab bar? (a) opens a list of pages (b) hides extra links (c) sits at the bottom (d) goes to the last screen
  9. 9.🧭 Where is a tab bar usually placed in a phone app? (a) inside a button (b) in the middle (c) at the bottom (d) nowhere
  10. 10.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. open “Friend list”
    3. tap the Profile tab
    Which screen are you on now?     (a) Home (b) Friend list (c) Search (d) Profile
  11. 11.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. tap Back
    3. open “Badges”
    4. tap Back
    5. tap the Feed tab
    Which screen are you on now?     (a) Chat (b) Settings (c) Badges (d) Feed
  12. 12.Which of these is true of a tab bar? (a) switches main sections (b) goes to the last screen (c) hides extra links (d) undoes one move
  13. 13.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. tap the Lessons tab
    3. open “Edit photo”
    4. open “Badges”
    Which screen are you on now?     (a) Lessons (b) Help page (c) Badges (d) Edit photo
  14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. tap the Search tab
    3. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
  15. 15.🧭 Which part of navigation undoes one move? (a) the back button (b) a menu button (c) a tab bar
  16. 16.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) a tab bar (c) the back button
  17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. tap the Lessons tab
    3. tap the Lessons tab
    Which screen are you on now?     (a) Lessons (b) Quiz (c) Me
  18. 18.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. tap the Feed tab
    3. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
  19. 19.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. tap the Search tab
    4. open “Help page”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  20. 20.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap the Feed tab
    3. tap the Settings tab
    How many times must you tap Back to reach the main screen of this tab?
  21. 21.Which of these is true of a tab bar? (a) opens a list of pages (b) hides extra links (c) undoes one move (d) shows 3 to 5 icons
  22. 22.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Badges”
    3. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
  23. 23.🧭 Which part of navigation switches main sections? (a) a tab bar (b) a menu button (c) the back button
  24. 24.Which of these is true of the back button? (a) sits at the bottom (b) switches main sections (c) opens a list of pages (d) undoes one move
  25. 25.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Help page”
    3. open “Score card”
    4. tap Back
    5. open “Score card”
    Which screen are you on now?     (a) Score card (b) Home (c) Search (d) Help page
  26. 26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Map”
    3. open “Badges”
    4. tap the Home tab
    5. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
  27. 27.🧭 Which part of navigation shows 3 to 5 icons? (a) a tab bar (b) a menu button (c) the back button
  28. 28.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. open “Score card”
    3. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
  29. 29.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap the Feed tab
    3. open “Score card”
    Which screen are you on now?     (a) Score card (b) Chat (c) Map (d) Feed
  30. 30.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap Back
    3. open “Help page”
    4. tap Back
    5. tap the Feed 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 “Score card”
    2. tap the Chat tab
    3. tap the Feed tab
    4. tap the Chat tab
    Which screen are you on now?     (a) Settings (b) Chat (c) Score card (d) Feed
  32. 32.🧭 What does the back button usually do? (a) closes all apps (b) opens settings (c) deletes the page (d) goes to the last screen
  33. 33.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. open “Edit photo”
    3. open “Badges”
    4. tap the Profile tab
    5. tap the Search tab
    Which screen are you on now?     (a) Search (b) Match report (c) Badges (d) Edit photo
  34. 34.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap the Home tab
    3. tap the Home tab
    4. open “Help page”
    5. tap Back
    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 Me tab
    2. tap the Quiz tab
    3. open “Friend list”
    4. open “Friend list”
    5. open “Help page”
    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. tap the Profile tab
    2. open “Match report”
    3. tap the Profile tab
    4. open “Score card”
    5. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
  37. 37.Which of these is true of a menu button? (a) undoes one move (b) switches main sections (c) opens a list of pages (d) goes to the last screen
  38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. tap the Chat tab
    3. tap the Settings tab
    4. open “Score card”
    Which screen are you on now?     (a) Score card (b) Badges (c) Chat (d) Feed
  39. 39.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Home tab
    3. open “Map”
    4. open “Friend list”
    Which screen are you on now?     (a) Home (b) Friend list (c) Map (d) Match report
  40. 40.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap Back
    3. open “Video”
    4. tap Back
    5. open “Help page”
    Which screen are you on now?     (a) Map (b) Feed (c) Help page (d) Video

Answer key

  1. Map
  2. Video
  3. so users do not get lost
  4. Feed
  5. Lessons
  6. 3 to 5
  7. Profile
  8. sits at the bottom
  9. at the bottom
  10. Profile
  11. Feed
  12. switches main sections
  13. Badges
  14. 1
  15. the back button
  16. a tab bar
  17. Lessons
  18. 1
  19. 0
  20. 0
  21. shows 3 to 5 icons
  22. 3
  23. a tab bar
  24. undoes one move
  25. Score card
  26. 0
  27. a tab bar
  28. 0
  29. Score card
  30. 0
  31. Chat
  32. goes to the last screen
  33. Search
  34. 0
  35. 3
  36. 0
  37. opens a list of pages
  38. Score card
  39. Friend list
  40. Help page

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