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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 197 · 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) undoes one move (b) hides extra links (c) sits at the bottom (d) goes to the last screen
  2. 2.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. open “Map”
    3. tap Back
    4. tap Back
    5. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
  3. 3.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. open “Video”
    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 Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. open “Friend list”
    3. tap Back
    4. tap Back
    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. tap the Home tab
    2. open “Friend list”
    3. tap Back
    4. open “Match report”
    5. tap Back
    Which screen are you on now?     (a) Search (b) Match report (c) Home (d) Friend list
  6. 6.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Match report”
    3. tap Back
    4. open “Edit photo”
    Which screen are you on now?     (a) Edit photo (b) Search (c) Home (d) Match report
  7. 7.🧭 Tapping a tab usually takes you to ___. (a) the last app used (b) that tab’s main screen (c) a random page (d) the phone settings
  8. 8.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Video”
    3. tap Back
    4. open “Match report”
    Which screen are you on now?     (a) Quiz (b) Match report (c) Lessons (d) Video
  9. 9.Which of these is true of a tab bar? (a) opens a list of pages (b) hides extra links (c) goes to the last screen (d) shows 3 to 5 icons
  10. 10.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Help page”
    3. open “Edit photo”
    4. tap Back
    5. open “Edit photo”
    Which screen are you on now?     (a) Edit photo (b) Lessons (c) Quiz (d) Help page
  11. 11.🧭 Which part of navigation switches main sections? (a) a menu button (b) a tab bar (c) the back button
  12. 12.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. tap the Feed tab
    3. open “Help page”
    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 “Map”
    2. open “Score card”
    3. open “Map”
    Which screen are you on now?     (a) Chat (b) Feed (c) Map (d) Score card
  14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. open “Help page”
    3. tap Back
    4. tap Back
    Which screen are you on now?     (a) Search (b) Score card (c) Home (d) Help page
  15. 15.🧭 Which part of navigation hides extra links? (a) a menu button (b) a tab bar (c) the back button
  16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap Back
    3. open “Help page”
    Which screen are you on now?     (a) Home (b) Search (c) Friend list (d) Help page
  17. 17.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. tap the Profile tab
    Which screen are you on now?     (a) Home (b) Help page (c) Profile (d) Search
  18. 18.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap the Me tab
    3. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
  19. 19.🧭 Where is a tab bar usually placed in a phone app? (a) nowhere (b) in the middle (c) at the bottom (d) inside a button
  20. 20.🧭 What does the back button usually do? (a) opens settings (b) closes all apps (c) deletes the page (d) goes to the last screen
  21. 21.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. tap Back
    3. open “Map”
    4. open “Edit photo”
    Which screen are you on now?     (a) Edit photo (b) Badges (c) Map (d) Feed
  22. 22.🧭 Which part of navigation shows 3 to 5 icons? (a) a tab bar (b) a menu button (c) the back button
  23. 23.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 10 to 12 (c) 3 to 5 (d) 1
  24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Friend list”
    3. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
  25. 25.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a menu button (c) a tab bar
  26. 26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. open “Match report”
    3. tap Back
    4. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?
  27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap the Feed tab
    3. tap the Settings tab
    4. tap the Chat tab
    Which screen are you on now?     (a) Feed (b) Chat (c) Settings (d) Match report
  28. 28.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Friend list”
    3. tap Back
    Which screen are you on now?     (a) Friend list (b) Search (c) Home (d) Profile
  29. 29.🧭 Which part of navigation goes to the last screen? (a) a tab bar (b) the back button (c) a menu button
  30. 30.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Video”
    3. tap Back
    4. tap the Profile tab
    Which screen are you on now?     (a) Home (b) Video (c) Search (d) Profile
  31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap the Profile tab
    3. tap the Home tab
    4. open “Friend list”
    5. tap Back
    Which screen are you on now?     (a) Profile (b) Home (c) Friend list (d) Search
  32. 32.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. open “Video”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  33. 33.🧭 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 “Score card”
    5. tap the Search tab
    Which screen are you on now?     (a) Map (b) Home (c) Search (d) Score card
  34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. open “Help page”
    3. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
  35. 35.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Edit photo”
    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?
  36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap Back
    3. tap the Lessons tab
    Which screen are you on now?     (a) Me (b) Video (c) Lessons (d) Quiz
  37. 37.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Map”
    3. open “Badges”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  38. 38.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. open “Friend list”
    3. open “Score card”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  39. 39.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Help page”
    3. tap the Feed tab
    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 “Video”
    2. open “Video”
    3. open “Score card”
    4. tap the Lessons tab
    How many times must you tap Back to reach the main screen of this tab?

Answer key

  1. sits at the bottom
  2. 1
  3. 3
  4. 0
  5. Home
  6. Edit photo
  7. that tab’s main screen
  8. Match report
  9. shows 3 to 5 icons
  10. Edit photo
  11. a tab bar
  12. 1
  13. Map
  14. Home
  15. a menu button
  16. Help page
  17. Profile
  18. 1
  19. at the bottom
  20. goes to the last screen
  21. Edit photo
  22. a tab bar
  23. 3 to 5
  24. 2
  25. a tab bar
  26. 0
  27. Chat
  28. Home
  29. the back button
  30. Profile
  31. Home
  32. 1
  33. Search
  34. 0
  35. 0
  36. Lessons
  37. 1
  38. 2
  39. 0
  40. 0

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