The Art of Doing: Dive Into Android Development with Kotlin - Enabling the Navigation Library

This video tutorial explains how to implement fragment navigation in an Android app using the navigation library. It covers setting up the Gradle file with necessary dependencies, creating a navigation graph, linking fragments, and implementing a navigation host fragment. The tutorial also demonstrates how to test the navigation setup and troubleshoot common issues.

What is the primary purpose of using a navigation library in Android development?

• To enhance the app's visual design

• To manage fragment transitions efficiently

• To improve app performance

• To simplify data storage

Which file needs to be modified to add the navigation library to an Android project?

• AndroidManifest.xml

• build.gradle

• settings.gradle

• strings.xml

What is the purpose of a navigation graph in Android?

• To store user data

• To define the app's color scheme

• To manage user permissions

• To visually represent fragment transitions

How can you preview a fragment layout in the navigation graph?

• By enabling developer mode

• By using a third-party plugin

• By adding a tools layout attribute

• By restarting Android Studio

What is the role of a NAV host fragment in an Android app?

• To improve network connectivity

• To enhance app security

• To host and manage fragment transitions

• To store app settings

Which layout should contain the NAV host fragment?

• The layout used in the login screen

• The layout used in the settings screen

• The layout used in the splash screen

• The layout used in the main activity

What happens if the NAV host fragment is not linked to a navigation graph?

• The app will crash

• The navigation graph will not be accessible

• The app will not compile

• The app will run slower

What does setting the default host attribute to true in a NAV host fragment do?

• It disables fragment transitions

• It allows the app to run in the background

• It prevents the app from closing

• It ensures the back button navigates through fragments

What should you do if the NAV host fragment does not appear in the navigation graph?

• Close and reopen the project

• Reinstall Android Studio

• Delete the navigation graph

• Restart the Android device

What is the first fragment loaded in the navigation setup described?

• Blue fragment

• Yellow fragment

• Green fragment

• Red fragment