LiveData is a data holder class that can be observed within a given lifecycle. This means that an Observer can be added in a pair with a LifecycleOwner, and this observer will be notified about modifications of the LiveData object only if the associated LifecycleOwner is in active state. LiveData respects the lifecycle state of app components, such as activities, fragments, or services, and it only updates app-component observers that are in an active lifecycle state. Furthermore, LiveData automatically removes the observers when their associated LifecycleOwner moves to the Destroyed state. This combination of LiveData and LifecycleOwner helps you to manage appropriate and efficient updates because LiveData takes into consideration the lifecycle state of your app components.
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