What is the purpose of Android ViewModel?

The purpose of Android ViewModel is to provide data to UI components and manage the state of UI components. The ViewModel is responsible for fetching data from a data source and converting it into a format that UI components can directly use. Additionally, the ViewModel handles user interactions and updates the state of UI components. The design of ViewModel aims to separate UI components from business logic, making UI components more lightweight and easier to test. Furthermore, ViewModel has the ability to be aware of the lifecycle, maintaining data and state consistency during configuration changes such as screen rotation.