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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 717 · 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 menu button? (a) switches main sections (b) sits at the bottom (c) opens a list of pages (d) undoes one move
  2. 2.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. open “Badges”
    3. tap Back
    4. tap Back
    Which screen are you on now?     (a) Friend list (b) Quiz (c) Lessons (d) Badges
  3. 3.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap Back
    3. open “Badges”
    Which screen are you on now?     (a) Search (b) Badges (c) Video (d) Home
  4. 4.Which of these is true of a menu button? (a) goes to the last screen (b) shows 3 to 5 icons (c) hides extra links (d) undoes one move
  5. 5.🧭 What does the back button usually do? (a) opens settings (b) closes all apps (c) deletes the page (d) goes to the last screen
  6. 6.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap the Chat tab
    3. open “Match report”
    4. tap the Chat tab
    5. open “Map”
    Which screen are you on now?     (a) Feed (b) Match report (c) Chat (d) Map
  7. 7.Which of these is true of the back button? (a) shows 3 to 5 icons (b) undoes one move (c) opens a list of pages (d) hides extra links
  8. 8.🧭 Why should every screen show where you are? (a) so users do not get lost (b) to look busy (c) to hide the menu (d) to use more battery
  9. 9.🧭 About how many tabs suit a tab bar best? (a) 10 to 12 (b) 20 (c) 1 (d) 3 to 5
  10. 10.Which of these is true of a tab bar? (a) goes to the last screen (b) opens a list of pages (c) switches main sections (d) hides extra links
  11. 11.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Edit photo”
    3. tap Back
    4. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
  12. 12.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap Back
    3. tap the Me tab
    Which screen are you on now?     (a) Me (b) Lessons (c) Quiz (d) Score card
  13. 13.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Video”
    3. open “Edit photo”
    4. tap Back
    5. tap the Profile tab
    Which screen are you on now?     (a) Edit photo (b) Profile (c) Video (d) Map
  14. 14.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap the Settings tab
    3. open “Match report”
    Which screen are you on now?     (a) Match report (b) Chat (c) Feed (d) Settings
  15. 15.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap the Settings tab
    3. open “Map”
    4. tap the Feed tab
    5. open “Edit photo”
    Which screen are you on now?     (a) Map (b) Feed (c) Help page (d) Edit photo
  16. 16.Which of these is true of a tab bar? (a) undoes one move (b) sits at the bottom (c) goes to the last screen (d) opens a list of pages
  17. 17.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Friend list”
    3. open “Match report”
    4. tap the Chat tab
    Which screen are you on now?     (a) Match report (b) Friend list (c) Feed (d) Chat
  18. 18.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap the Search tab
    3. open “Map”
    4. tap the Home tab
    Which screen are you on now?     (a) Home (b) Search (c) Video (d) Map
  19. 19.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap the Feed tab
    3. open “Match report”
    4. open “Badges”
    5. tap the Chat tab
    Which screen are you on now?     (a) Edit photo (b) Match report (c) Badges (d) Chat
  20. 20.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Help page”
    3. open “Edit photo”
    Which screen are you on now?     (a) Edit photo (b) Home (c) Help page (d) Search
  21. 21.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. tap the Me tab
    3. tap the Lessons tab
    4. open “Map”
    Which screen are you on now?     (a) Lessons (b) Map (c) Me (d) Quiz
  22. 22.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Score card”
    3. tap Back
    4. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
  23. 23.🧭 Which part of navigation hides extra links? (a) a menu button (b) the back button (c) a tab bar
  24. 24.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Map”
    3. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
  25. 25.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap the Settings tab
    3. open “Edit photo”
    Which screen are you on now?     (a) Chat (b) Feed (c) Edit photo (d) Score card
  26. 26.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) the back button (c) a tab bar
  27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Score card”
    3. open “Match report”
    4. open “Video”
    5. tap Back
    Which screen are you on now?     (a) Feed (b) Video (c) Match report (d) Score card
  28. 28.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Edit photo”
    3. tap the Search tab
    Which screen are you on now?     (a) Edit photo (b) Home (c) Search (d) Profile
  29. 29.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a tab bar (c) a menu button
  30. 30.Which of these is true of the back button? (a) switches main sections (b) shows 3 to 5 icons (c) sits at the bottom (d) goes to the last screen
  31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Profile tab
    3. open “Help page”
    4. tap the Home tab
    5. open “Map”
    Which screen are you on now?     (a) Home (b) Help page (c) Map (d) Match report
  32. 32.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. open “Score card”
    3. open “Score card”
    4. open “Map”
    5. tap the Profile tab
    Which screen are you on now?     (a) Score card (b) Video (c) Profile (d) Map
  33. 33.🧭 Where is a tab bar usually placed in a phone app? (a) at the bottom (b) nowhere (c) in the middle (d) inside a button
  34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Edit photo”
    3. open “Map”
    4. tap the Me tab
    How many times must you tap Back to reach the main screen of this tab?
  35. 35.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. open “Map”
    3. tap the Chat tab
    Which screen are you on now?     (a) Settings (b) Chat (c) Map (d) Feed
  36. 36.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Badges”
    3. tap Back
    Which screen are you on now?     (a) Home (b) Profile (c) Badges (d) Search
  37. 37.Which of these is true of a tab bar? (a) goes to the last screen (b) shows 3 to 5 icons (c) opens a list of pages (d) undoes one move
  38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Badges”
    3. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
  39. 39.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Map”
    3. tap the Me tab
    4. tap the Me tab
    Which screen are you on now?     (a) Lessons (b) Quiz (c) Me (d) Map
  40. 40.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. open “Badges”
    3. tap Back
    Which screen are you on now?     (a) Badges (b) Home (c) Search (d) Score card

Answer key

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

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