Advanced MVVM in Jetpack Compose: Search, Pagination & Cross-Module Triggers

The provided Kotlin code snippet outlines a basic implementation of an Android app screen using Jetpack Compose, which includes features like search functionality and pagination for loading more data. Below is a breakdown of what each part does:

ViewModel (ItemViewModel)

• items: State<List<Item>>: A state object that holds the list of items.
• searchQuery: String: The current value of the search query entered by the user.
• isLoading: Boolean: Indicates whether data is currently being loaded from a remote source.
• error: String?: Holds an error message if there's an issue fetching or displaying data.

ViewModel Methods

1. onSearchQueryChanged(query: String):

   • Updates the search query and triggers a new API call to fetch items based on the updated query.

2. loadMoreItems():

   • Fetches additional items from the server when the user scrolls near the end of the list, assuming pagination is implemented in the backend.

3. onRetry():

   • Attempts to reload data after an error occurs by calling loadMoreItems.

Compose UI

• The UI uses a `Column

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