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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 550 · 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) opens a list of pages (b) switches main sections (c) undoes one move (d) goes to the last screen
  2. 2.Which of these is true of a menu button? (a) undoes one move (b) shows 3 to 5 icons (c) switches main sections (d) opens a list of pages
  3. 3.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Badges”
    3. tap the Lessons tab
    Which screen are you on now?     (a) Edit photo (b) Badges (c) Quiz (d) Lessons
  4. 4.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Home tab
    3. tap the Profile tab
    4. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
  5. 5.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. open “Edit photo”
    3. open “Match report”
    Which screen are you on now?     (a) Search (b) Match report (c) Home (d) Edit photo
  6. 6.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. open “Friend list”
    3. tap Back
    4. tap the Chat tab
    5. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
  7. 7.🧭 Where is a tab bar usually placed in a phone app? (a) at the bottom (b) nowhere (c) inside a button (d) in the middle
  8. 8.Which of these is true of a tab bar? (a) hides extra links (b) undoes one move (c) sits at the bottom (d) goes to the last screen
  9. 9.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. tap the Quiz tab
    3. open “Edit photo”
    Which screen are you on now?     (a) Quiz (b) Help page (c) Lessons (d) Edit photo
  10. 10.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap the Home tab
    3. open “Map”
    4. open “Friend list”
    5. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
  11. 11.🧭 Which part of navigation undoes one move? (a) a tab bar (b) a menu button (c) the back button
  12. 12.🧭 Why should every screen show where you are? (a) to hide the menu (b) to look busy (c) to use more battery (d) so users do not get lost
  13. 13.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Match report”
    3. tap Back
    4. tap the Feed tab
    Which screen are you on now?     (a) Feed (b) Match report (c) Chat (d) Edit photo
  14. 14.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. open “Friend list”
    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 goes to the last screen? (a) a menu button (b) a tab bar (c) the back button
  16. 16.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap Back
    3. tap the Me tab
    4. open “Help page”
    5. tap the Lessons tab
    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. open “Video”
    3. tap Back
    4. tap the Home tab
    5. 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 “Map”
    2. tap Back
    3. open “Match report”
    4. tap the Home tab
    5. open “Video”
    Which screen are you on now?     (a) Home (b) Video (c) Match report (d) Map
  19. 19.🧭 Which part of navigation switches main sections? (a) a menu button (b) the back button (c) a tab bar
  20. 20.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap the Quiz tab
    3. open “Friend list”
    4. tap the Lessons tab
    How many times must you tap Back to reach the main screen of this tab?
  21. 21.🧭 What does the back button usually do? (a) goes to the last screen (b) opens settings (c) closes all apps (d) deletes the page
  22. 22.Which of these is true of a tab bar? (a) opens a list of pages (b) goes to the last screen (c) shows 3 to 5 icons (d) hides extra links
  23. 23.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. tap the Home tab
    3. open “Video”
    4. open “Friend list”
    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 “Match report”
    2. tap the Settings tab
    3. open “Video”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  25. 25.Which of these is true of the back button? (a) goes to the last screen (b) shows 3 to 5 icons (c) sits at the bottom (d) switches main sections
  26. 26.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. open “Map”
    3. tap Back
    4. tap the Feed tab
    5. open “Edit photo”
    Which screen are you on now?     (a) Feed (b) Score card (c) Edit photo (d) Map
  27. 27.🧭 Which part of navigation opens a list of pages? (a) the back button (b) a menu button (c) a tab bar
  28. 28.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Badges”
    3. tap Back
    4. tap the Feed tab
    Which screen are you on now?     (a) Feed (b) Badges (c) Settings (d) Chat
  29. 29.🧭 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 “Badges”
    How many times must you tap Back to reach the main screen of this tab?
  30. 30.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. tap the Profile tab
    3. tap the Profile tab
    Which screen are you on now?     (a) Search (b) Home (c) Profile
  31. 31.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. tap the Feed tab
    3. open “Video”
    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. open “Friend list”
    2. open “Map”
    3. tap Back
    4. tap Back
    5. open “Map”
    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 “Badges”
    Which screen are you on now?     (a) Video (b) Badges (c) Feed (d) Chat
  34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. tap the Quiz tab
    3. open “Score card”
    4. tap the Me tab
    5. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
  35. 35.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap the Home tab
    3. tap the Search tab
    4. open “Help page”
    Which screen are you on now?     (a) Help page (b) Friend list (c) Search (d) Home
  36. 36.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap the Search tab
    3. open “Help page”
    4. open “Edit photo”
    5. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
  37. 37.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap Back
    3. open “Edit photo”
    Which screen are you on now?     (a) Edit photo (b) Friend list (c) Home (d) Search
  38. 38.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Edit photo”
    3. open “Friend list”
    Which screen are you on now?     (a) Search (b) Edit photo (c) Friend list (d) Home
  39. 39.🧭 Which part of navigation shows 3 to 5 icons? (a) a menu button (b) a tab bar (c) the back button
  40. 40.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Map”
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?

Answer key

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

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