Goodbye to Activity Lifecycle and Hello to Compose Lifecycle

PINAR TURGUT
7 min readApr 24, 2023

As an Android app developer, you know that managing the Activity Lifecycle is an essential part of building high-quality apps.

At first, I was skeptical about Compose Lifecycle. I’ve been using the Activity Lifecycle for years, and it’s been working fine for me. But after trying out Compose, I was blown away by how much easier it made my life as a developer

In the Activity Lifecycle, there are so many lifecycle methods to manage, and it can get complicated pretty quickly. But with Compose, the lifecycle is simpler, and the framework takes care of many of the details of managing UI components.

In this blog post, we’ll explore the benefits of Compose Lifecycle and why developers should consider using it over the traditional Activity Lifecycle.

Remember lifecycle of an Activity

The lifecycle of an Activity in Android is a series of states that an Activity can go through as it is created, used, and destroyed. The Android system manages the lifecycle of an Activity and calls different methods on the Activity at different points in its lifecycle.

The lifecycle of an Activity is as follows:

1.onCreate(): This method is called when the Activity is first created. It is here that you should do initialization work, such as setting up the UI, initializing variables, or reading data from a database.

2. onStart(): This method is called when the Activity becomes visible to the user, but before the user can interact with it.

3. onResume(): This method is called when the Activity is ready for the user to interact with. It is here that you should start animations, play audio, or anything else that requires user interaction.

4. onPause(): This method is called when the Activity loses focus, such as when the user receives a phone call or opens another app. It is here that you should pause animations, stop audio, or anything else that requires user interaction to be stopped.

5. onStop(): This method is called when the Activity is no longer visible to the user. It is here that you should release resources, such as closing database connections or stopping background…

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