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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 481 · 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 the back button? (a) hides extra links (b) sits at the bottom (c) goes to the last screen (d) switches main sections
  2. 2.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. tap the Lessons tab
    3. open “Edit photo”
    Which screen are you on now?     (a) Quiz (b) Me (c) Lessons (d) Edit photo
  3. 3.🧭 Tapping a tab usually takes you to ___. (a) the last app used (b) the phone settings (c) a random page (d) that tab’s main screen
  4. 4.🧭 Which part of navigation hides extra links? (a) a tab bar (b) the back button (c) a menu button
  5. 5.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap the Lessons tab
    3. open “Score card”
    4. tap the Quiz tab
    Which screen are you on now?     (a) Edit photo (b) Quiz (c) Score card (d) Lessons
  6. 6.Which of these is true of a tab bar? (a) opens a list of pages (b) undoes one move (c) shows 3 to 5 icons (d) hides extra links
  7. 7.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. tap the Home tab
    3. open “Match report”
    4. tap Back
    5. open “Match report”
    Which screen are you on now?     (a) Map (b) Home (c) Search (d) Match report
  8. 8.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. tap the Me tab
    3. open “Edit photo”
    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. tap the Lessons tab
    2. open “Score card”
    3. tap Back
    4. open “Badges”
    5. tap the Quiz 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 “Help page”
    2. tap the Profile tab
    3. tap the Home tab
    Which screen are you on now?     (a) Profile (b) Help page (c) Home (d) Search
  11. 11.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. open “Friend list”
    3. open “Friend list”
    4. tap the Profile tab
    5. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
  12. 12.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Match report”
    3. tap the Profile tab
    4. open “Friend list”
    5. open “Match report”
    Which screen are you on now?     (a) Match report (b) Home (c) Friend list (d) Search
  13. 13.Which of these is true of the back button? (a) opens a list of pages (b) undoes one move (c) switches main sections (d) sits at the bottom
  14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. tap Back
    3. open “Badges”
    4. tap the Search tab
    Which screen are you on now?     (a) Profile (b) Home (c) Search (d) Badges
  15. 15.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap Back
    3. tap the Home tab
    4. open “Edit photo”
    5. tap the Home tab
    Which screen are you on now?     (a) Home (b) Edit photo (c) Search (d) Score card
  16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap the Search tab
    3. tap the Home tab
    4. tap the Home tab
    Which screen are you on now?     (a) Home (b) Friend list (c) Profile (d) Search
  17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap the Me tab
    3. open “Badges”
    4. tap Back
    Which screen are you on now?     (a) Badges (b) Lessons (c) Map (d) Me
  18. 18.🧭 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
  19. 19.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. open “Edit photo”
    3. tap the Home tab
    4. tap the Profile tab
    Which screen are you on now?     (a) Profile (b) Home (c) Edit photo (d) Video
  20. 20.🧭 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
    4. open “Video”
    Which screen are you on now?     (a) Video (b) Lessons (c) Map (d) Quiz
  21. 21.🧭 What does the back button usually do? (a) closes all apps (b) opens settings (c) deletes the page (d) goes to the last screen
  22. 22.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. tap the Chat tab
    3. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
  23. 23.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 1 (c) 10 to 12 (d) 3 to 5
  24. 24.Which of these is true of a tab bar? (a) goes to the last screen (b) sits at the bottom (c) opens a list of pages (d) hides extra links
  25. 25.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap the Quiz tab
    3. open “Badges”
    4. open “Badges”
    5. open “Video”
    Which screen are you on now?     (a) Lessons (b) Video (c) Map (d) Badges
  26. 26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Search tab
    3. open “Match report”
    4. open “Score card”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  27. 27.Which of these is true of a tab bar? (a) goes to the last screen (b) undoes one move (c) switches main sections (d) opens a list of pages
  28. 28.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. open “Edit photo”
    3. tap the Profile tab
    4. open “Video”
    5. open “Match report”
    Which screen are you on now?     (a) Edit photo (b) Home (c) Match report (d) Video
  29. 29.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a menu button (c) a tab bar
  30. 30.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. tap the Lessons tab
    3. tap the Me tab
    4. open “Match report”
    5. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
  31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. tap Back
    3. open “Badges”
    4. tap Back
    Which screen are you on now?     (a) Map (b) Search (c) Badges (d) Home
  32. 32.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Match report”
    3. open “Edit photo”
    4. open “Badges”
    5. tap the Search tab
    Which screen are you on now?     (a) Search (b) Edit photo (c) Match report (d) Help page
  33. 33.🧭 Why should every screen show where you are? (a) to use more battery (b) to hide the menu (c) to look busy (d) so users do not get lost
  34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Map”
    3. tap the Lessons tab
    4. tap the Quiz tab
    Which screen are you on now?     (a) Map (b) Quiz (c) Lessons (d) Me
  35. 35.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap the Quiz tab
    3. tap the Lessons tab
    4. open “Help page”
    Which screen are you on now?     (a) Video (b) Lessons (c) Help page (d) Quiz
  36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap the Quiz tab
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
  37. 37.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. open “Help page”
    3. tap the Me tab
    Which screen are you on now?     (a) Lessons (b) Score card (c) Me (d) Help page
  38. 38.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. tap the Quiz tab
    3. tap the Lessons 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?
  39. 39.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Help page”
    3. tap Back
    4. open “Edit photo”
    5. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  40. 40.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap the Chat tab
    3. open “Score card”
    4. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?

Answer key

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

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