Flutter Framework Components Quiz
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Questions and Answers

What is the responsibility of the Rendering layer in Flutter?

  • Interacting with and writing Flutter applications
  • Converting widgets to pixels and displaying them on the screen (correct)
  • Providing foundational classes and building block services
  • Writing code to create new widgets for the application

Which predefined library does the Flutter framework provide for supporting animations?

  • tween (correct)
  • Foundation layer
  • Widget layer
  • Gesture detector

What is the purpose of the gesture detector in Flutter?

  • Creating a new widget for the application
  • Detecting gestures like tapping, dragging, and scaling (correct)
  • Converting widgets to pixels and displaying them on the screen
  • Interacting with and writing Flutter applications

How are reusable widgets used in Flutter?

<p>To make a widget tree (A)</p> Signup and view all the answers

What is the primary purpose of the SafeArea widget in Flutter?

<p>To dynamically adapt the UI to various device screen constraints (D)</p> Signup and view all the answers

Why do developers use SafeArea in their Flutter apps?

<p>To ensure that the UI is error-free and adaptive to different devices (B)</p> Signup and view all the answers

What feature does SafeArea consider when adding extra padding to the app's widgets?

<p>The dimensions of the display screen (D)</p> Signup and view all the answers

How does SafeArea internally determine the need for extra padding in a Flutter app?

<p>By using MediaQuery to examine the display screen dimensions (D)</p> Signup and view all the answers

What is the purpose of a bottom navigation bar in a Flutter app?

<p>To provide quick navigation between the top-level views of an app (B)</p> Signup and view all the answers

In what scenario would side navigation be preferred over a bottom navigation bar?

<p>For larger screens (C)</p> Signup and view all the answers

Which argument is used to provide the bottom navigation bar in Flutter's Scaffold?

<p>Scaffold.bottomNavigationBar (D)</p> Signup and view all the answers

What happens to the type of the bottom navigation bar when its items are less than four?

<p>Automatically set to BottomNavigationBarType.fixed (A)</p> Signup and view all the answers

What is the minimum length requirement for items in a bottom navigation bar in Flutter?

<p>At least two items (B)</p> Signup and view all the answers

Which property is used to control whether the labels are shown for selected or unselected items in the bottom navigation bar?

<p>showSelectedLabels and showUnselectedLabels (A)</p> Signup and view all the answers

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