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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 630 · 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) undoes one move (b) opens a list of pages (c) hides extra links (d) sits at the bottom
  2. 2.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap the Home tab
    3. tap the Home tab
    4. tap the Home tab
    Which screen are you on now?     (a) Search (b) Profile (c) Home (d) Score card
  3. 3.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap Back
    3. open “Map”
    4. tap the Chat tab
    How many times must you tap Back to reach the main screen of this tab?
  4. 4.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 3 to 5 (c) 1 (d) 10 to 12
  5. 5.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Video”
    3. tap Back
    Which screen are you on now?     (a) Search (b) Video (c) Home (d) Profile
  6. 6.🧭 What does the back button usually do? (a) opens settings (b) goes to the last screen (c) closes all apps (d) deletes the page
  7. 7.🧭 Where is a tab bar usually placed in a phone app? (a) inside a button (b) in the middle (c) nowhere (d) at the bottom
  8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Map”
    3. tap the Profile tab
    4. open “Map”
    Which screen are you on now?     (a) Home (b) Search (c) Map (d) Profile
  9. 9.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. open “Score card”
    Which screen are you on now?     (a) Help page (b) Search (c) Home (d) Score card
  10. 10.🧭 Which part of navigation opens a list of pages? (a) a tab bar (b) the back button (c) a menu button
  11. 11.Which of these is true of the back button? (a) shows 3 to 5 icons (b) undoes one move (c) hides extra links (d) opens a list of pages
  12. 12.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. tap the Me tab
    3. open “Score card”
    4. tap Back
    Which screen are you on now?     (a) Lessons (b) Score card (c) Me (d) Quiz
  13. 13.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap Back
    3. open “Badges”
    Which screen are you on now?     (a) Score card (b) Badges (c) Feed (d) Chat
  14. 14.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. open “Score card”
    3. open “Score card”
    4. tap Back
    5. tap the Quiz tab
    Which screen are you on now?     (a) Lessons (b) Score card (c) Video (d) Quiz
  15. 15.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Map”
    3. tap Back
    4. open “Score card”
    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. open “Badges”
    2. open “Friend list”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  17. 17.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
  18. 18.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. open “Score card”
    3. tap the Profile tab
    Which screen are you on now?     (a) Home (b) Score card (c) Profile (d) Badges
  19. 19.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Help page”
    3. tap the Home tab
    4. open “Match report”
    Which screen are you on now?     (a) Search (b) Home (c) Help page (d) Match report
  20. 20.🧭 Which part of navigation shows 3 to 5 icons? (a) a tab bar (b) the back button (c) a menu button
  21. 21.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Friend list”
    3. tap the Profile tab
    4. open “Video”
    5. open “Edit photo”
    Which screen are you on now?     (a) Video (b) Edit photo (c) Friend list (d) Map
  22. 22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    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 “Help page”
    2. tap Back
    3. tap the Settings tab
    How many times must you tap Back to reach the main screen of this tab?
  24. 24.Which of these is true of a menu button? (a) switches main sections (b) sits at the bottom (c) goes to the last screen (d) hides extra links
  25. 25.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. tap Back
    3. open “Score card”
    4. tap Back
    5. tap the Me tab
    Which screen are you on now?     (a) Score card (b) Help page (c) Me (d) Lessons
  26. 26.Which of these is true of a menu button? (a) opens a list of pages (b) switches main sections (c) goes to the last screen (d) sits at the bottom
  27. 27.🧭 Which part of navigation undoes one move? (a) a tab bar (b) the back button (c) a menu button
  28. 28.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. open “Friend list”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  29. 29.🧭 Why should every screen show where you are? (a) to look busy (b) so users do not get lost (c) to use more battery (d) to hide the menu
  30. 30.🧭 Tapping a tab usually takes you to ___. (a) the last app used (b) a random page (c) the phone settings (d) that tab’s main screen
  31. 31.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. tap the Quiz tab
    3. open “Friend list”
    4. open “Video”
    5. open “Edit photo”
    Which screen are you on now?     (a) Lessons (b) Edit photo (c) Video (d) Friend list
  32. 32.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap the Home tab
    3. open “Friend list”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  33. 33.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. tap the Lessons tab
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Help page”
    3. tap Back
    4. open “Match report”
    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. open “Video”
    2. tap Back
    3. open “Edit photo”
    Which screen are you on now?     (a) Edit photo (b) Quiz (c) Video (d) Lessons
  36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. open “Badges”
    3. tap Back
    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. tap the Lessons tab
    2. open “Score card”
    3. tap the Quiz tab
    Which screen are you on now?     (a) Me (b) Score card (c) Quiz (d) Lessons
  38. 38.🧭 Which part of navigation switches main sections? (a) a tab bar (b) the back button (c) a menu button
  39. 39.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. open “Badges”
    3. tap the Profile tab
    4. open “Map”
    Which screen are you on now?     (a) Home (b) Badges (c) Edit photo (d) Map
  40. 40.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. open “Help page”
    3. open “Map”
    4. open “Help page”
    Which screen are you on now?     (a) Home (b) Badges (c) Help page (d) Map

Answer key

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

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