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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 707 · 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) hides extra links (b) shows 3 to 5 icons (c) goes to the last screen (d) opens a list of pages
  2. 2.🧭 Tapping a tab usually takes you to ___. (a) a random page (b) that tab’s main screen (c) the last app used (d) the phone settings
  3. 3.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap Back
    3. open “Edit photo”
    4. tap the Settings tab
    Which screen are you on now?     (a) Edit photo (b) Help page (c) Feed (d) Settings
  4. 4.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Home tab
    3. open “Score card”
    4. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
  5. 5.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Match report”
    3. open “Video”
    Which screen are you on now?     (a) Feed (b) Video (c) Match report (d) Edit photo
  6. 6.🧭 Where is a tab bar usually placed in a phone app? (a) at the bottom (b) inside a button (c) in the middle (d) nowhere
  7. 7.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap Back
    3. tap the Settings tab
    4. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
  8. 8.Which of these is true of a tab bar? (a) goes to the last screen (b) sits at the bottom (c) hides extra links (d) opens a list of pages
  9. 9.🧭 Which part of navigation switches main sections? (a) a tab bar (b) a menu button (c) the back button
  10. 10.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. tap the Lessons tab
    3. open “Help page”
    4. open “Video”
    Which screen are you on now?     (a) Help page (b) Lessons (c) Quiz (d) Video
  11. 11.🧭 Which part of navigation opens a list of pages? (a) a menu button (b) a tab bar (c) the back button
  12. 12.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Edit photo”
    3. open “Video”
    4. tap Back
    5. tap the Home tab
    Which screen are you on now?     (a) Edit photo (b) Home (c) Search (d) Video
  13. 13.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. open “Friend list”
    3. tap the Home tab
    Which screen are you on now?     (a) Score card (b) Search (c) Friend list (d) Home
  14. 14.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Friend list”
    4. tap the Lessons tab
    5. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
  15. 15.🧭 Which part of navigation goes to the last screen? (a) a tab bar (b) a menu button (c) the back button
  16. 16.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. tap the Chat tab
    3. open “Help page”
    Which screen are you on now?     (a) Settings (b) Chat (c) Feed (d) Help page
  17. 17.Which of these is true of a tab bar? (a) switches main sections (b) goes to the last screen (c) undoes one move (d) opens a list of pages
  18. 18.🧭 About how many tabs suit a tab bar best? (a) 3 to 5 (b) 10 to 12 (c) 1 (d) 20
  19. 19.Which of these is true of the back button? (a) hides extra links (b) sits at the bottom (c) undoes one move (d) shows 3 to 5 icons
  20. 20.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap Back
    3. open “Edit photo”
    Which screen are you on now?     (a) Quiz (b) Match report (c) Lessons (d) Edit photo
  21. 21.🧭 Which part of navigation hides extra links? (a) a menu button (b) the back button (c) a tab bar
  22. 22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Map”
    3. tap the Profile tab
    Which screen are you on now?     (a) Search (b) Home (c) Map (d) Profile
  23. 23.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a tab bar (c) a menu button
  24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap the Home tab
    3. tap the Search tab
    4. open “Badges”
    5. tap Back
    Which screen are you on now?     (a) Score card (b) Badges (c) Search (d) Home
  25. 25.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Map”
    3. tap Back
    4. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
  26. 26.🧭 Which part of navigation undoes one move? (a) a tab bar (b) a menu button (c) the back button
  27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap the Profile tab
    3. open “Help page”
    Which screen are you on now?     (a) Friend list (b) Search (c) Home (d) Help page
  28. 28.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Friend list”
    3. tap the Lessons tab
    Which screen are you on now?     (a) Quiz (b) Me (c) Friend list (d) Lessons
  29. 29.🧭 What does the back button usually do? (a) opens settings (b) closes all apps (c) deletes the page (d) goes to the last screen
  30. 30.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. open “Video”
    3. tap Back
    Which screen are you on now?     (a) Friend list (b) Video (c) Lessons (d) Quiz
  31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. open “Edit photo”
    3. tap Back
    4. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
  32. 32.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap the Settings tab
    3. open “Help page”
    4. open “Map”
    5. open “Edit photo”
    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. tap the Home tab
    2. open “Score card”
    3. tap Back
    Which screen are you on now?     (a) Profile (b) Home (c) Score card (d) Search
  34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap Back
    3. open “Match report”
    4. tap the Lessons tab
    5. open “Score card”
    Which screen are you on now?     (a) Match report (b) Lessons (c) Score card (d) Quiz
  35. 35.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. tap the Feed tab
    3. open “Match report”
    4. open “Map”
    5. open “Badges”
    Which screen are you on now?     (a) Badges (b) Match report (c) Map (d) Feed
  36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. open “Map”
    3. open “Edit photo”
    4. tap Back
    Which screen are you on now?     (a) Lessons (b) Friend list (c) Edit photo (d) Map
  37. 37.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. tap the Feed tab
    3. open “Score card”
    4. open “Score card”
    Which screen are you on now?     (a) Score card (b) Settings (c) Chat (d) Feed
  38. 38.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. tap the Profile tab
    3. open “Match report”
    4. tap the Home tab
    5. tap the Profile tab
    Which screen are you on now?     (a) Map (b) Home (c) Match report (d) Profile
  39. 39.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Map”
    3. open “Edit photo”
    4. open “Score card”
    5. open “Edit photo”
    Which screen are you on now?     (a) Map (b) Feed (c) Score card (d) Edit photo
  40. 40.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap the Settings tab
    3. open “Match report”
    4. tap Back
    Which screen are you on now?     (a) Feed (b) Settings (c) Match report (d) Edit photo

Answer key

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

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