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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 299 · 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 tab bar? (a) hides extra links (b) goes to the last screen (c) opens a list of pages (d) sits at the bottom
  2. 2.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Friend list”
    3. tap the Quiz tab
    Which screen are you on now?     (a) Lessons (b) Friend list (c) Quiz (d) Edit photo
  3. 3.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. open “Badges”
    3. tap the Me tab
    How many times must you tap Back to reach the main screen of this tab?
  4. 4.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. open “Edit photo”
    3. open “Video”
    4. tap Back
    Which screen are you on now?     (a) Video (b) Feed (c) Chat (d) Edit photo
  5. 5.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap Back
    3. tap the Chat tab
    4. open “Badges”
    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. open “Video”
    2. tap the Home tab
    3. open “Friend list”
    4. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
  7. 7.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap Back
    3. open “Help page”
    4. tap the Quiz tab
    5. tap the Lessons tab
    Which screen are you on now?     (a) Quiz (b) Help page (c) Lessons (d) Map
  8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Friend list”
    4. tap Back
    5. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  9. 9.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Badges”
    3. tap the Home tab
    4. open “Match report”
    5. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
  10. 10.🧭 Which part of navigation hides extra links? (a) the back button (b) a menu button (c) a tab bar
  11. 11.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Friend list”
    3. tap the Search tab
    4. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
  12. 12.🧭 Which part of navigation switches main sections? (a) a menu button (b) a tab bar (c) the back button
  13. 13.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. open “Map”
    3. open “Match report”
    Which screen are you on now?     (a) Friend list (b) Map (c) Home (d) Match report
  14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap Back
    3. open “Map”
    Which screen are you on now?     (a) Home (b) Search (c) Map (d) Friend list
  15. 15.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap the Me tab
    3. tap the Quiz tab
    4. open “Map”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. tap the Home tab
    3. open “Score card”
    4. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
  17. 17.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) the back button (c) a tab bar
  18. 18.Which of these is true of the back button? (a) opens a list of pages (b) sits at the bottom (c) shows 3 to 5 icons (d) goes to the last screen
  19. 19.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Help page”
    Which screen are you on now?     (a) Lessons (b) Edit photo (c) Help page (d) Quiz
  20. 20.🧭 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
  21. 21.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Match report”
    3. tap Back
    4. open “Map”
    Which screen are you on now?     (a) Home (b) Map (c) Search (d) Match report
  22. 22.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Edit photo”
    3. tap Back
    4. tap the Quiz tab
    5. tap the Lessons tab
    Which screen are you on now?     (a) Edit photo (b) Quiz (c) Lessons (d) Me
  23. 23.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Score card”
    3. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
  24. 24.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap the Settings tab
    3. open “Video”
    4. open “Score card”
    5. open “Map”
    Which screen are you on now?     (a) Video (b) Friend list (c) Score card (d) Map
  25. 25.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. open “Match report”
    3. tap Back
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  26. 26.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap Back
    3. open “Match report”
    4. tap Back
    Which screen are you on now?     (a) Score card (b) Feed (c) Chat (d) Match report
  27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Help page”
    3. open “Map”
    Which screen are you on now?     (a) Feed (b) Chat (c) Help page (d) Map
  28. 28.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Map”
    3. tap Back
    Which screen are you on now?     (a) Map (b) Settings (c) Feed (d) Chat
  29. 29.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 3 to 5 (c) 1 (d) 10 to 12
  30. 30.🧭 Which part of navigation goes to the last screen? (a) a tab bar (b) a menu button (c) the back button
  31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Edit photo”
    3. open “Score card”
    4. tap Back
    Which screen are you on now?     (a) Home (b) Score card (c) Edit photo (d) Search
  32. 32.🧭 What does the back button usually do? (a) opens settings (b) goes to the last screen (c) deletes the page (d) closes all apps
  33. 33.🧭 Tapping a tab usually takes you to ___. (a) a random page (b) the phone settings (c) that tab’s main screen (d) the last app used
  34. 34.🧭 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 “Score card”
    How many times must you tap Back to reach the main screen of this tab?
  35. 35.🧭 Where is a tab bar usually placed in a phone app? (a) nowhere (b) inside a button (c) at the bottom (d) in the middle
  36. 36.🧭 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 Lessons tab
    4. tap the Quiz tab
    5. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
  37. 37.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap Back
    3. open “Map”
    4. tap the Quiz tab
    5. open “Friend list”
    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. open “Help page”
    2. tap the Chat tab
    3. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
  39. 39.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap the Chat tab
    3. tap the Settings tab
    Which screen are you on now?     (a) Edit photo (b) Settings (c) Chat (d) Feed
  40. 40.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Match report”
    3. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?

Answer key

  1. sits at the bottom
  2. Quiz
  3. 0
  4. Edit photo
  5. 1
  6. 0
  7. Lessons
  8. 1
  9. 2
  10. a menu button
  11. 0
  12. a tab bar
  13. Match report
  14. Map
  15. 0
  16. 0
  17. a tab bar
  18. goes to the last screen
  19. Help page
  20. so users do not get lost
  21. Map
  22. Lessons
  23. 2
  24. Map
  25. 0
  26. Feed
  27. Map
  28. Chat
  29. 3 to 5
  30. the back button
  31. Edit photo
  32. goes to the last screen
  33. that tab’s main screen
  34. 2
  35. at the bottom
  36. 0
  37. 1
  38. 1
  39. Settings
  40. 2

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