ActivityResultLauncher

ActivityResultLauncher is a class in the Android framework that simplifies the process of requesting and handling activity results. It was introduced as part of the Jetpack library in Android, with the goal of reducing the complexity of the traditional onActivityResult method.

The traditional onActivityResult method requires an explicit request for results, which can make the code cumbersome to navigate. In contrast, ActivityResultLauncher allows developers to launch an activity request without needing to handle the results explicitly. This approach simplifies the launch and callbacks for common use cases, such as authentication and settings.

ActivityResultLauncher is associated with lifecycle events, allowing it to handle background launch requirements. This means that the launcher can be used safely in both foreground and background app scenarios. The launcher also includes options for configuring the request with settings such as multi-window support, activity flags, and result types.

By providing a simpler, more flexible alternative to the traditional onActivityResult method, ActivityResultLauncher can help reduce memory leaks and improve app performance. The library also offers capabilities for pre-launch debugging, which allows developers to detect common issues before the app is published.

ActivityResultLauncher can be used in conjunction with other Jetpack libraries, such as the lifecycle and sizing libraries. Its utility and flexibleness have made it a popular choice for developers in the Android ecosystem. The class can be used as a more straightforward way to handle specific result scenarios and achieve consistent and reliable handling of current application lifecycle changes.