Presentational or dumb components in React Native are primarily focused on rendering the user interface (UI). Here are the key features of presentational/dumb components:
UI-Focused: Presentational components are mainly concerned with how things look. They render markup and styles based on the props they receive, without dictating how the data is loaded or manipulated[1][2][4][5].
Stateless: These components are typically stateless, meaning they do not manage their own state. If they do have state, it is only for UI-level concerns, such as toggling a dropdown menu or managing an input field value, rather than handling application data[1][4][8].
Props Driven: Presentational components receive all the data they need via props. This makes them predictable and easier to test, as their output is fully determined by the props they receive[1][2][4][5].
Reusable and Composable: Due to their simplicity and lack of dependencies, presentational components are highly reusable across different parts of the application. This reusability is a significant advantage for scaling applications[1][2][4][5].
No Business Logic: These components do not contain any business logic. They are purely for presentation and delegate any user interaction or data manipulation to parent components via callback functions passed as props[1][4][5].
Easy to Test: Since presentational components only take props and return UI, they are straightforward to test. They do not have complex logic or state management, making unit testing simpler[1][4][5].
No Dependencies: Presentational components do not require any dependencies on the rest of the app, other than UI packages like Reactstrap. This independence further enhances their reusability and simplicity[1][4][8].
