Go实现跨平台的蓝牙聊天室示例详解

go get tinygo.org/x/bluetooth

package main
import (
    "log"
    "tinygo.org/x/bluetooth"
)
var adapter = bluetooth.DefaultAdapter
func main() {
    must("enable BLE interface", adapter.Enable())
    // 接下来的操作...
}
func must(action string, err error) {
    if err != nil {
        log.Fatalf("failed to %s: %v", action, err)
    }
}

func scanDevices() {
    log.Println("Scanning...")
    adapter.Scan(func(adapter *bluetooth.Adapter, device bluetooth.ScanResult) {
        log.Println("Found device:", device.Address.String(), "RSSI:", device.RSSI)
    })
}

func connectToDevice(address string) {
    addr, err := bluetooth.ParseMAC(address)
    must("parse MAC address", err)
    device, err := adapter.Connect(addr, bluetooth.ConnectionParams{})
    must("connect to device", err)
    // 接下来的操作...
}

func communicate(device *bluetooth.Device) {
    // 发送数据
    device.Write([]byte("Hello from Go!"))
    // 接收数据
    data := make([]byte, 1024)
    n, err := device.Read(data)
    if err != nil {
        log.Println("read error:", err)
    }
    log.Println("Received:", string(data[:n]))
}

// 假设有一个函数处理用户输入和显示接收到的消息
func startChat(device *bluetooth.Device) {
    go func() {
        for {
            // 读取用户输入并发送
            msg := readUserInput()
            device.Write([]byte(msg))
        }
    }()
    go func() {
        for {
            // 接收数据并显示
            data := make([]byte, 1024)
            n, _ := device.Read(data)
            displayMessage(string(data[:n]))
        }
    }()
}