Android Lifecycle Explained: Usage Guide

In Android, Lifecycle is an architecture component used to manage the lifecycle of activities and fragments. It offers a mechanism for developers to perform specific actions during different lifecycle events of the components.

Developers can use Lifecycle to monitor the lifecycle status of a LifecycleOwner object, typically an Activity or Fragment, in order to perform specific actions. Lifecycle offers a range of lifecycle states, including CREATED, STARTED, RESUMED, PAUSED, STOPPED, and DESTROYED.

Developers can perform custom operations at specific lifecycle states by implementing the LifecycleObserver interface and using the @OnLifecycleEvent annotation. For example, they can add a method annotated with @OnLifecycleEvent(Lifecycle.Event.ON_CREATE) in the onCreate() method of an Activity to execute some initialization tasks.

Apart from observing lifecycle states and executing operations, Lifecycle also offers additional functions such as managing lifecycle changes when handling configuration modifications (e.g. screen rotation) and determining the current lifecycle state of a component.

In conclusion, the Lifecycle in Android offers a convenient mechanism for managing the lifecycle of components and allows developers to execute appropriate operations during different lifecycle states. This helps improve the stability and maintainability of the application.