react-native-bluetooth-android

ReactNative 蓝牙库，适用于安卓平台

快速开始

使用npm

$ npm install react-native-bluetooth-android --save

使用 yarn

$ yarn add react-native-bluetooth-android

自动链接

$ react-native link react-native-bluetooth-android

手动安装

Android

1. 打开 android/app/src/main/java/[...]/MainApplication.java

• 引入 import com.tyanbiao.bluetooth.RNBluetoothPackage;
• 在 list() 方法中添加 packages.add(new RNBluetoothPackage());

2. 在android/settings.gradle文件中加入:

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

3. 在android/app/build.gradle的 dependencies 中插入:

   implementation project(':react-native-bluetooth-android')
   

示例

1. git clone https://github.com/tyanbiao/react-native-bluetooth-android.git
2. cd react-native-bluetooth-android/example
3. npm i
4. react-native run-android

使用

全部导入

import * as RNBluetooth from 'react-native-bluetooth-android'

单个导入

import { openBluetoothAdapter } from 'react-native-bluetooth-android'

初始化

const res = await openBluetoothAdapter()

获取已绑定设备

const devices = await listDevices()

返回设备列表，类型： Array.<Object>， devices结构：

{
	name: string
	address: string
}

搜索设备

startDevicesDiscovery()

停止搜索

stopDevicesDiscovery()

监听发现设备事件

onDeviceFound((device) => {
	console.log(device.name)
	console.log(device.address)
})

创建连接

const res = createConnection(address)

断开连接

closeConnection()

监听连接断开事件

onConnectionLost(() => {
	console.log('连接已断开')
})

发送数据

• 发送二进制数据

const bufferView = new Uint8Array(10)
writeBuffer(bufferView.buffer)

• 发送ascii字符串

const buffer = utils.stringToBuffer('hello world')
writeBuffer(buffer)

• 发送hex字符串

const buffer = utils.hexToBuffer('550d0aeeff')
writeBuffer(buffer)

监听数据接收事件

const handler = (buffer) => {
	const bufferView = new Uint8Array(buffer)
	// do something
}
onDataReceived(handler)

接收到的数据类型为ArrayBuffer，可以根据实际需求做处理，utils对象内置了ArrayBuffer转换为ascii和hex编码的方法

import { utils } from 'react-native-bluetooth-android'

let hexStr = utils.bufferToHex(arrayBuffer)
let asciiStr = utils.bufferToString(arrayBuffer)

API 列表

• openBluetoothAdapter
• closeBluetoothAdapter
• startDevicesDiscovery
• stopDevicesDiscovery
• listDevices
• createConnection
• closeConnection
• writeBuffer
• onDataReceived
• onDeviceFound
• onConnectionLost
• utils

openBluetoothAdapter

使用async, await

try {
	const res = await openBluetoothAdapter()
	console.log(res)
} catch (e) {
	console.error(e)
}

使用promise

openBluetoothAdapter().then(result => {
	console.log(res)
}).catch(e => {
	console.error(e)
})

closeBluetoothAdapter

startDevicesDiscovery

stopDevicesDiscovery

listDevices

createConnection

closeConnection

writeBuffer

onDataReceived

onDeviceFound

onConnectionLost

utils

• bufferToString
• stringToBuffer
• bufferToHex
• hexToBuffer