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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 405 · 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 Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
  2. 2.🧭 Which part of navigation shows 3 to 5 icons? (a) a tab bar (b) a menu button (c) the back button
  3. 3.🧭 Tapping a tab usually takes you to ___. (a) that tab’s main screen (b) the last app used (c) a random page (d) the phone settings
  4. 4.🧭 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
  5. 5.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Edit photo”
    4. open “Help page”
    5. tap Back
    Which screen are you on now?     (a) Lessons (b) Help page (c) Quiz (d) Edit photo
  6. 6.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. tap the Quiz tab
    3. open “Video”
    4. open “Map”
    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 menu button? (a) sits at the bottom (b) switches main sections (c) goes to the last screen (d) hides extra links
  9. 9.Which of these is true of a menu button? (a) sits at the bottom (b) shows 3 to 5 icons (c) switches main sections (d) opens a list of pages
  10. 10.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap the Feed tab
    3. open “Video”
    4. open “Badges”
    Which screen are you on now?     (a) Feed (b) Video (c) Match report (d) Badges
  11. 11.🧭 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
    5. tap the Profile tab
    Which screen are you on now?     (a) Home (b) Profile (c) Badges (d) Friend list
  12. 12.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a tab bar (c) a menu button
  13. 13.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap Back
    3. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
  14. 14.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. open “Score card”
    3. open “Friend list”
    4. open “Video”
    5. tap the Chat tab
    Which screen are you on now?     (a) Video (b) Score card (c) Friend list (d) Chat
  15. 15.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap Back
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  16. 16.Which of these is true of a tab bar? (a) goes to the last screen (b) hides extra links (c) shows 3 to 5 icons (d) opens a list of pages
  17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap Back
    3. open “Friend list”
    4. open “Score card”
    5. tap Back
    Which screen are you on now?     (a) Score card (b) Lessons (c) Friend list (d) Map
  18. 18.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. open “Match report”
    3. tap the Feed tab
    4. open “Edit photo”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  19. 19.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
  20. 20.🧭 Which part of navigation opens a list of pages? (a) a tab bar (b) the back button (c) a menu button
  21. 21.🧭 Which part of navigation hides extra links? (a) a tab bar (b) the back button (c) a menu button
  22. 22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap Back
    3. open “Map”
    Which screen are you on now?     (a) Search (b) Home (c) Map (d) Score card
  23. 23.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap the Chat tab
    3. open “Score card”
    Which screen are you on now?     (a) Chat (b) Score card (c) Match report (d) Feed
  24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Video”
    3. tap the Profile tab
    4. open “Help page”
    Which screen are you on now?     (a) Help page (b) Map (c) Video (d) Home
  25. 25.🧭 Which part of navigation undoes one move? (a) a tab bar (b) a menu button (c) the back button
  26. 26.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap the Settings tab
    3. tap the Chat tab
    4. open “Map”
    5. tap Back
    Which screen are you on now?     (a) Score card (b) Map (c) Feed (d) Chat
  27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Search tab
    3. open “Video”
    Which screen are you on now?     (a) Home (b) Search (c) Match report (d) Video
  28. 28.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. open “Map”
    3. tap Back
    4. tap the Search tab
    5. open “Help page”
    Which screen are you on now?     (a) Score card (b) Home (c) Help page (d) Map
  29. 29.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Help page”
    3. tap Back
    4. open “Video”
    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. open “Help page”
    2. open “Match report”
    3. tap the Home tab
    4. open “Friend list”
    Which screen are you on now?     (a) Help page (b) Friend list (c) Match report (d) Home
  31. 31.Which of these is true of a tab bar? (a) goes to the last screen (b) hides extra links (c) switches main sections (d) opens a list of pages
  32. 32.🧭 Which part of navigation goes to the last screen? (a) the back button (b) a menu button (c) a tab bar
  33. 33.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap the Profile tab
    3. tap the Search tab
    4. open “Map”
    Which screen are you on now?     (a) Search (b) Map (c) Home (d) Video
  34. 34.🧭 What does the back button usually do? (a) goes to the last screen (b) deletes the page (c) closes all apps (d) opens settings
  35. 35.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Help page”
    3. open “Score card”
    4. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  36. 36.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Search tab
    3. tap the Profile tab
    Which screen are you on now?     (a) Profile (b) Home (c) Search
  37. 37.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. open “Friend list”
    3. open “Video”
    4. open “Video”
    5. 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 “Score card”
    2. tap the Search tab
    3. tap the Profile tab
    Which screen are you on now?     (a) Profile (b) Search (c) Home (d) Score card
  39. 39.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. open “Edit photo”
    3. tap Back
    4. open “Help page”
    5. tap the Feed tab
    Which screen are you on now?     (a) Help page (b) Map (c) Feed (d) Edit photo
  40. 40.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap the Settings tab
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?

Answer key

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

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