Android和硬件通信使用的串口库 react-native-serial-port

原生库 使用的是 志勇大神写的串口工具库 [项目地址]:[https://github.com/licheedev/Android-SerialPort-API]

开始使用

1. 在package.json里面的 dependencies 添加 "react-native-serial-port": "github:Marcello168/react-native-SerialPort"

2. 添加后 执行 $ npm install 就会下载

3. 执行 如下命令 自动链接到原生库 $ react-native link react-native-serial-port

4. 在Android 目录下 的build.gradle文件里面的 repositories 增加 maven { url 'https://jitpack.io' } 如下

    allprojects {
    repositories {
        mavenLocal()
        google()
        jcenter()
        maven {
            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
            url "$rootDir/../node_modules/react-native/android"
            }
      maven { url 'https://jitpack.io' }
      }
    }

   5. 在AndraidMainifest.xml 文件中 将 android:allowBackup="false" 改成android:allowBackup="true"

手动安装

Android

1. Open up android/app/src/main/java/[...]/MainActivity.java

• Add import com.reactlibrary.RNSerialPortPackage; to the imports at the top of the file
• Add new RNSerialPortPackage() to the list returned by the getPackages() method

2. Append the following lines to android/settings.gradle:

   include ':react-native-serial-port'
   project(':react-native-serial-port').projectDir = new File(rootProject.projectDir, 	'../node_modules/react-native-serial-port/android')

3. Insert the following lines inside the dependencies block in android/app/build.gradle:

     compile project(':react-native-serial-port')

使用方法

1. 获取设备的路径列表

import RNSerialPort from 'react-native-serial-port';

// TODO: 获取设备的路径列表
 RNSerialPort.getAllDevicesPath((result) => {
                console.log(result); 
            });

2. 打开串口

import RNSerialPort from 'react-native-serial-port';
// TODO: 打开串口
RNSerialPort.openSerialPort('/dev/ttySO', 9600);

3. 发送数据

import RNSerialPort from 'react-native-serial-port';
let byteData = [0x00,0x01,0x02,0x03,0x05]
// TODO: 发送数据
RNSerialPort.sendByteData(byteData);

3. 监听串口的状态 和 监听串口回传数据

import RNSerialPort from 'react-native-serial-port';
     DeviceEventEmitter.addListener('onSerialPortRecevieData', this.onSerialPortRecevieData, this)
    //监听接收串口开关的状态
	DeviceEventEmitter.addListener('onSerialPortOpenStatus'，this.onSerialPortOpenStatus, this)


	    //监听串口的状态
    onSerialPortOpenStatus(status) {
        alert(status)
        console.log("onSerialPortOpenStatus");
        //处理逻辑
	}
	
    // 监听串口回传数据
    onSerialPortRecevieData(receiveData) {
        console.log(receiveData);
        console.log("onSerialPortRecevieData");
        // 处理接收的数据
    }

具体使用可以参考 example 里面的 RNSerialPortManager.js文件