bytedance

scene

Mobile#Android#Kotlin#Navigation#UI

2,416

// summary

Scene is a lightweight Android library designed to replace traditional Activities and Fragments for efficient navigation and UI composition. It addresses performance and compatibility issues by providing a reliable, high-performance alternative for page management. The framework is fully compatible with Jetpack Fragments and offers a simple API for developers to transition their applications.

// technical analysis

Scene is a lightweight Android framework designed to replace traditional Activity and Fragment navigation with a view-based composition model. It addresses performance bottlenecks associated with Activity startup times and the view-destruction issues inherent in the Google Navigation Component. By providing a reliable, high-performance API for page management, the framework enables developers to build complex applications with improved lifecycle control and simplified navigation stack management.

// key highlights

Provides full compatibility with the Jetpack Fragment framework to ensure seamless integration with existing Android components.

Simplifies navigation stack management with support for multiple stacks and enhanced lifecycle event distribution.

Streamlines complex cross-page and shared element animations to improve UI transitions.

Allows for the modification and automatic restoration of Activity and Window properties to maintain state consistency.

Enables robust data exchange between Scenes, including the ability to handle permission requests and grants directly within a Scene.

Supports state persistence via Parcelable, ensuring that Scene states can be saved and restored without requiring R8 or Proguard configuration.

// use cases

Simplified navigation stack management with support for multiple stacks

Enhanced lifecycle management and event distribution for Android pages

Streamlined cross-page and shared element animations

// getting started

To begin using Scene, add the JitPack repository to your root build.gradle file and include the necessary library dependencies in your module-level build.gradle. For the simplest implementation, have your main Activity inherit from SceneActivity and define the home Scene class. You can then explore the framework by creating custom Scenes that extend the base Scene or AppCompatScene classes.