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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 423 · 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. tap the Quiz tab
    2. open “Match report”
    3. tap Back
    4. tap the Lessons tab
    Which screen are you on now?     (a) Match report (b) Quiz (c) Me (d) Lessons
  2. 2.Which of these is true of a tab bar? (a) undoes one move (b) shows 3 to 5 icons (c) goes to the last screen (d) opens a list of pages
  3. 3.🧭 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?
  4. 4.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap the Settings tab
    3. tap the Chat tab
    4. open “Map”
    Which screen are you on now?     (a) Feed (b) Map (c) Chat (d) Edit photo
  5. 5.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Badges”
    3. tap the Home tab
    4. tap the Search tab
    5. open “Help page”
    Which screen are you on now?     (a) Badges (b) Home (c) Search (d) Help page
  6. 6.Which of these is true of the back button? (a) shows 3 to 5 icons (b) opens a list of pages (c) hides extra links (d) undoes one move
  7. 7.🧭 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”
    How many times must you tap Back to reach the main screen of this tab?
  8. 8.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. tap the Lessons tab
    3. tap the Me tab
    4. open “Badges”
    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. open “Help page”
    2. open “Badges”
    3. tap the Search tab
    4. open “Edit photo”
    Which screen are you on now?     (a) Badges (b) Help page (c) Home (d) Edit photo
  10. 10.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. open “Friend list”
    3. tap Back
    Which screen are you on now?     (a) Friend list (b) Search (c) Home (d) Badges
  11. 11.🧭 Where is a tab bar usually placed in a phone app? (a) at the bottom (b) in the middle (c) nowhere (d) inside a button
  12. 12.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Badges”
    3. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
  13. 13.🧭 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 “Score card”
    Which screen are you on now?     (a) Match report (b) Chat (c) Score card (d) Feed
  14. 14.Which of these is true of a tab bar? (a) sits at the bottom (b) undoes one move (c) opens a list of pages (d) hides extra links
  15. 15.🧭 What does the back button usually do? (a) closes all apps (b) deletes the page (c) goes to the last screen (d) opens settings
  16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Video”
    3. tap Back
    Which screen are you on now?     (a) Profile (b) Video (c) Search (d) Home
  17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap Back
    3. open “Help page”
    Which screen are you on now?     (a) Friend list (b) Help page (c) Quiz (d) Lessons
  18. 18.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap the Profile tab
    3. tap the Profile tab
    4. open “Edit photo”
    Which screen are you on now?     (a) Home (b) Score card (c) Search (d) Edit photo
  19. 19.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Home tab
    3. tap the Home tab
    4. open “Score card”
    5. tap Back
    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. open “Video”
    2. open “Match report”
    3. tap Back
    Which screen are you on now?     (a) Video (b) Quiz (c) Match report (d) Lessons
  21. 21.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Match report”
    3. tap Back
    4. tap Back
    5. open “Badges”
    Which screen are you on now?     (a) Match report (b) Edit photo (c) Lessons (d) Badges
  22. 22.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a tab bar (c) a menu button
  23. 23.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. tap Back
    3. tap the Home tab
    4. open “Map”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  24. 24.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap Back
    3. tap the Me tab
    Which screen are you on now?     (a) Edit photo (b) Quiz (c) Lessons (d) Me
  25. 25.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Badges”
    3. tap Back
    4. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
  26. 26.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 20 (c) 3 to 5 (d) 10 to 12
  27. 27.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Badges”
    3. tap Back
    4. open “Help page”
    5. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  28. 28.🧭 Which part of navigation opens a list of pages? (a) a tab bar (b) a menu button (c) the back button
  29. 29.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. open “Help page”
    3. tap the Quiz tab
    4. open “Map”
    Which screen are you on now?     (a) Score card (b) Lessons (c) Map (d) Help page
  30. 30.🧭 Which part of navigation undoes one move? (a) a tab bar (b) a menu button (c) the back button
  31. 31.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Edit photo”
    3. tap Back
    4. open “Help page”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  32. 32.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Badges”
    3. tap the Me tab
    4. tap the Lessons tab
    Which screen are you on now?     (a) Badges (b) Me (c) Quiz (d) Lessons
  33. 33.🧭 Why should every screen show where you are? (a) to use more battery (b) to look busy (c) so users do not get lost (d) to hide the menu
  34. 34.Which of these is true of a tab bar? (a) switches main sections (b) hides extra links (c) opens a list of pages (d) goes to the last screen
  35. 35.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Help page”
    3. open “Match report”
    4. tap Back
    Which screen are you on now?     (a) Search (b) Match report (c) Home (d) Help page
  36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. open “Badges”
    3. tap the Lessons tab
    4. open “Score card”
    5. open “Badges”
    Which screen are you on now?     (a) Quiz (b) Lessons (c) Score card (d) Badges
  37. 37.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) switches main sections (c) goes to the last screen (d) hides extra links
  38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. open “Video”
    3. tap the Feed tab
    Which screen are you on now?     (a) Feed (b) Chat (c) Settings (d) Video
  39. 39.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Badges”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  40. 40.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. open “Friend list”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?

Answer key

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

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