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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 664 · 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.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 3 to 5 (c) 1 (d) 10 to 12
  2. 2.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Score card”
    3. tap Back
    4. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
  3. 3.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap the Profile tab
    3. tap the Home tab
    Which screen are you on now?     (a) Edit photo (b) Search (c) Profile (d) Home
  4. 4.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Match report”
    3. tap the Feed tab
    4. tap the Chat tab
    Which screen are you on now?     (a) Feed (b) Match report (c) Settings (d) Chat
  5. 5.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap the Lessons tab
    3. open “Edit photo”
    4. open “Score card”
    Which screen are you on now?     (a) Quiz (b) Score card (c) Lessons (d) Edit photo
  6. 6.Which of these is true of a tab bar? (a) opens a list of pages (b) hides extra links (c) switches main sections (d) undoes one move
  7. 7.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) inside a button (c) nowhere (d) at the bottom
  8. 8.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a menu button (c) a tab bar
  9. 9.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Video”
    3. tap Back
    4. open “Edit photo”
    5. tap the Profile tab
    How many times must you tap Back to reach the main screen of this tab?
  10. 10.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. open “Help page”
    3. tap Back
    4. tap Back
    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. tap the Search tab
    2. open “Badges”
    3. tap the Home tab
    4. open “Score card”
    5. open “Friend list”
    Which screen are you on now?     (a) Score card (b) Badges (c) Home (d) Friend list
  12. 12.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Match report”
    4. tap the Chat tab
    Which screen are you on now?     (a) Edit photo (b) Chat (c) Match report (d) Feed
  13. 13.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap Back
    3. open “Video”
    Which screen are you on now?     (a) Me (b) Quiz (c) Lessons (d) Video
  14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap the Profile tab
    3. tap the Profile tab
    4. tap the Search tab
    5. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
  15. 15.Which of these is true of a menu button? (a) sits at the bottom (b) goes to the last screen (c) opens a list of pages (d) shows 3 to 5 icons
  16. 16.Which of these is true of the back button? (a) hides extra links (b) goes to the last screen (c) sits at the bottom (d) opens a list of pages
  17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Match report”
    3. open “Match report”
    4. tap Back
    Which screen are you on now?     (a) Lessons (b) Quiz (c) Match report (d) Me
  18. 18.Which of these is true of a menu button? (a) switches main sections (b) shows 3 to 5 icons (c) hides extra links (d) goes to the last screen
  19. 19.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. open “Score card”
    3. tap the Search tab
    4. tap the Profile tab
    5. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
  20. 20.Which of these is true of a tab bar? (a) sits at the bottom (b) opens a list of pages (c) hides extra links (d) undoes one move
  21. 21.🧭 Which part of navigation undoes one move? (a) a tab bar (b) a menu button (c) the back button
  22. 22.🧭 What does the back button usually do? (a) deletes the page (b) closes all apps (c) goes to the last screen (d) opens settings
  23. 23.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap the Quiz tab
    3. open “Video”
    4. tap the Quiz tab
    5. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
  24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. open “Match report”
    3. tap Back
    Which screen are you on now?     (a) Home (b) Search (c) Video (d) Match report
  25. 25.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. tap Back
    3. open “Map”
    4. tap Back
    5. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
  26. 26.🧭 Which part of navigation goes to the last screen? (a) a menu button (b) a tab bar (c) the back button
  27. 27.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. open “Friend list”
    3. tap the Quiz tab
    Which screen are you on now?     (a) Match report (b) Friend list (c) Quiz (d) Lessons
  28. 28.🧭 Which part of navigation hides extra links? (a) a menu button (b) a tab bar (c) the back button
  29. 29.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. tap the Profile tab
    3. open “Score card”
    4. open “Friend list”
    5. tap Back
    Which screen are you on now?     (a) Friend list (b) Home (c) Score card (d) Search
  30. 30.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a menu button (c) a tab bar
  31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Help page”
    3. tap Back
    4. tap the Home tab
    5. open “Edit photo”
    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 Me tab
    2. open “Friend list”
    3. tap Back
    4. tap the Me tab
    How many times must you tap Back to reach the main screen of this tab?
  33. 33.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap Back
    3. open “Score card”
    4. tap the Chat tab
    Which screen are you on now?     (a) Score card (b) Video (c) Feed (d) Chat
  34. 34.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. open “Map”
    3. open “Score card”
    Which screen are you on now?     (a) Feed (b) Map (c) Help page (d) Score card
  35. 35.🧭 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
  36. 36.🧭 Which part of navigation opens a list of pages? (a) a tab bar (b) the back button (c) a menu button
  37. 37.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Map”
    3. tap the Quiz tab
    Which screen are you on now?     (a) Quiz (b) Me (c) Lessons (d) Map
  38. 38.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap the Profile tab
    3. open “Video”
    Which screen are you on now?     (a) Home (b) Video (c) Profile (d) Search
  39. 39.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Help page”
    3. open “Match report”
    4. tap Back
    Which screen are you on now?     (a) Match report (b) Home (c) Help page (d) Map
  40. 40.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Edit photo”
    3. open “Edit photo”
    4. tap the Home tab
    5. open “Map”
    How many times must you tap Back to reach the main screen of this tab?

Answer key

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

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