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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 763 · 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 Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. open “Match report”
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
  2. 2.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Map”
    3. open “Friend list”
    4. open “Friend list”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  3. 3.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a menu button (c) a tab bar
  4. 4.🧭 Why should every screen show where you are? (a) to hide the menu (b) to use more battery (c) to look busy (d) so users do not get lost
  5. 5.🧭 About how many tabs suit a tab bar best? (a) 10 to 12 (b) 3 to 5 (c) 20 (d) 1
  6. 6.Which of these is true of a tab bar? (a) undoes one move (b) switches main sections (c) hides extra links (d) goes to the last screen
  7. 7.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. open “Match report”
    3. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
  8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap Back
    3. open “Badges”
    4. tap the Home tab
    5. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
  9. 9.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap the Me tab
    3. open “Edit photo”
    Which screen are you on now?     (a) Edit photo (b) Quiz (c) Map (d) Lessons
  10. 10.🧭 Which part of navigation goes to the last screen? (a) a tab bar (b) a menu button (c) the back button
  11. 11.Which of these is true of the back button? (a) shows 3 to 5 icons (b) goes to the last screen (c) sits at the bottom (d) opens a list of pages
  12. 12.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap the Settings tab
    3. open “Friend list”
    Which screen are you on now?     (a) Chat (b) Friend list (c) Help page (d) Feed
  13. 13.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap the Feed tab
    3. open “Help page”
    4. open “Help page”
    5. tap the Chat tab
    Which screen are you on now?     (a) Chat (b) Help page (c) Friend list (d) Feed
  14. 14.Which of these is true of a tab bar? (a) undoes one move (b) goes to the last screen (c) sits at the bottom (d) opens a list of pages
  15. 15.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap Back
    3. open “Edit photo”
    4. open “Badges”
    5. tap the Quiz tab
    Which screen are you on now?     (a) Edit photo (b) Badges (c) Quiz (d) Score card
  16. 16.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap Back
    3. open “Help page”
    4. tap Back
    5. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
  17. 17.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap the Feed tab
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  18. 18.🧭 Which part of navigation undoes one move? (a) the back button (b) a tab bar (c) a menu button
  19. 19.Which of these is true of a menu button? (a) goes to the last screen (b) shows 3 to 5 icons (c) opens a list of pages (d) sits at the bottom
  20. 20.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) at the bottom (c) inside a button (d) nowhere
  21. 21.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. open “Score card”
    3. tap Back
    4. tap the Chat tab
    Which screen are you on now?     (a) Video (b) Feed (c) Score card (d) Chat
  22. 22.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Video”
    4. tap Back
    Which screen are you on now?     (a) Edit photo (b) Quiz (c) Lessons (d) Video
  23. 23.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Score card”
    3. tap Back
    4. open “Help page”
    5. tap Back
    Which screen are you on now?     (a) Score card (b) Home (c) Search (d) Help page
  24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap Back
    3. open “Video”
    Which screen are you on now?     (a) Video (b) Search (c) Home (d) Profile
  25. 25.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap the Search tab
    3. tap the Profile tab
    How many times must you tap Back to reach the main screen of this tab?
  26. 26.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap the Lessons tab
    3. tap the Quiz tab
    Which screen are you on now?     (a) Quiz (b) Map (c) Lessons (d) Me
  27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Edit photo”
    3. tap Back
    Which screen are you on now?     (a) Edit photo (b) Search (c) Map (d) Home
  28. 28.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Score card”
    3. tap the Chat tab
    How many times must you tap Back to reach the main screen of this tab?
  29. 29.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Home tab
    3. open “Edit photo”
    4. tap Back
    5. open “Match report”
    Which screen are you on now?     (a) Edit photo (b) Search (c) Match report (d) Home
  30. 30.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Edit photo”
    3. open “Help page”
    4. tap the Quiz tab
    5. open “Match report”
    Which screen are you on now?     (a) Help page (b) Edit photo (c) Lessons (d) Match report
  31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. tap the Home tab
    3. open “Match report”
    4. tap the Home tab
    5. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
  32. 32.🧭 Which part of navigation switches main sections? (a) a menu button (b) the back button (c) a tab bar
  33. 33.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Edit photo”
    3. open “Edit photo”
    Which screen are you on now?     (a) Feed (b) Chat (c) Settings (d) Edit photo
  34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. open “Help page”
    3. tap Back
    4. tap the Me tab
    Which screen are you on now?     (a) Lessons (b) Me (c) Friend list (d) Help page
  35. 35.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap Back
    3. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
  36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap Back
    3. tap the Lessons tab
    4. open “Map”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  37. 37.Which of these is true of a tab bar? (a) opens a list of pages (b) goes to the last screen (c) hides extra links (d) shows 3 to 5 icons
  38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Match report”
    3. tap Back
    Which screen are you on now?     (a) Chat (b) Match report (c) Feed (d) Edit photo
  39. 39.🧭 What does the back button usually do? (a) deletes the page (b) opens settings (c) goes to the last screen (d) closes all apps
  40. 40.🧭 Which part of navigation hides extra links? (a) a menu button (b) the back button (c) a tab bar

Answer key

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

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