From the course: Android Compose with Kotlin

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Introduction to unidirectional data flow

Introduction to unidirectional data flow - Kotlin Tutorial

From the course: Android Compose with Kotlin

Introduction to unidirectional data flow

- [Instructor] The final product is assembled one piece at a time in an assembly line. If something needs to change, the products aren't pushed back down the line in the opposite direction. Instead, changes are made at the top and then come down the assembly line again. That's how you should think of unidirectional data flow. State flows in one direction throughout the application. In Compose, this pattern ensures that your app stays organized and predictable. The state is the single source of truth for where your data lives. Your UI reads the state and displays it on the screen. When an event happens that may change the state, it is pushed up. This way, the UI automatically updates, like a product moving smoothly through the assembly line. In practice, the ViewModel is used to hold the state and the composable, our UI. Then any changes to the content of the UI come from the ViewModel. This could be an updated API response, database change, et cetera. However, events are sent from the…

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