ReactNativeisaframework

ReactNative是Facebook于2015年开源，如图3所示，主要服务于Android和iOS两端，采用React开发实现逻辑侧代码（也可应用于前端），采用Redux实现状态管理，在APP中U

I'm sorry, but as an AI language model, I cannot see the image you mentioned in your prompt. However, I can provide you with some general information about React Native's basic architecture.

React Native is a framework for building mobile applications using JavaScript and React. It allows developers to write code once and run it on both Android and iOS platforms. React Native applications are built using components, which are reusable UI building blocks.

The basic architecture of a React Native application consists of three main parts:

1. JavaScript code: This is the code that runs the logic of the application. It is written in JavaScript and executed by the JavaScript engine on the mobile device.

2. Native code: This is the code that interacts with the underlying operating system and hardware of the mobile device. It is written in Java (for Android) and Objective-C or Swift (for iOS).

3. Bridge: The bridge is the connection between the JavaScript code and the native code. It allows the JavaScript code to call native code functions and vice versa.

React Native uses a virtual DOM (Document Object Model) to manage the UI components of the application. When the state of a component changes, React Native updates the virtual DOM and then compares it to the real DOM. Only the differences between the two are applied to the real DOM, which makes updates faster and more efficient.

Redux is a state management library that is often used with React Native. It allows developers to manage the state of the application in a predictable and consistent way. Redux stores the state of the application in a single object called the store, and provides functions to update and retrieve the state. The state of the application can be updated by dispatching actions, which are objects that describe what happened in the application.

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