Android Navigation is a framework provided by Google to make it easier to navigate between different screens or destinations in an Android app. It provides a set of APIs and tools to create a consistent and predictable user experience when navigating within an app.
Android Navigation is built on top of the Android Jetpack library, and it includes three main components:
Navigation graph: A visual representation of the app's navigation hierarchy, including all the screens (fragments or activities) and the connections between them. It is defined in an XML file called "navigation graph".
NavHost: A container that hosts the screens and manages the navigation between them. It is usually added to the app's main activity or fragment.
NavController: An object that manages the navigation within the NavHost. It is used to navigate between the screens, handle back button presses, and pass data between destinations.
Android Navigation also provides other features, such as:
Safe Args: A Gradle plugin that generates type-safe classes to pass data between destinations, reducing the risk of runtime errors.
Deep linking: The ability to launch specific screens of the app from external sources, such as a web link or a notification.
Animated transitions: The ability to add animations and transitions between screens to enhance the user experience.
Overall, Android Navigation simplifies the implementation of navigation in an Android app, making it easier to maintain and modify the app's navigation hierarchy.
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