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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 401 · 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.

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

Answer key

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

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