1、连接WIfi管理类封装
/**
* wifi管理类
*/
export class WifiManager {
/**
* 获取WiFi的Ip信息
* @param isToString 是否转换为字符串
* @returns
*/
static getIpInfo(isToString: boolean = true): wifiManager.IpInfo {
let ipInfo: wifiManager.IpInfo = wifiManager.getIpInfo()
// 使用lodash 的 map 方法将每个字段转换为字符串
Object.keys(ipInfo).forEach(key => {
if (key !== 'leaseDuration' && isToString) ipInfo[key] = WifiManager.getIpAddrFromNum(ipInfo[key])
})
return ipInfo
}
/**
* 计算子网掩码
* @param prefixLength
* @returns
*/
calculateSubnetMask(prefixLength: number): string {
// 计算每个字节的子网掩码部分
let subnetMask = '';
for (let i = 0; i < 4; i++) {
// 每个字节中的有效位数
const bits = Math.min(prefixLength, 8);
// 计算子网掩码字节的值并添加到结果字符串
subnetMask += (256 - Math.pow(2, 8 - bits)) + '.';
// 更新剩余的位数
prefixLength -= bits;
}
// 去除末尾的点并返回子网掩码字符串
return subnetMask.slice(0, -1);
}
/**
* 计算广播地址
* @param ipAddress
* @param subnetMask
* @returns
*/
calculateBroadcastAddress(ipAddress: string, subnetMask: string): string {
// 将IP地址字符串转换为数字数组
const ipParts: number[] = ipAddress.split('.')
.map(Number);
// 将子网掩码字符串转换为数字数组
const subnetParts: number[] = subnetMask.split('.')
.map(Number);
// 计算每个字节的广播地址部分
const broadcastParts: number[] = [];
for (let i = 0; i < 4; i++) {
// 计算每个字节的广播地址值并添加到结果数组
broadcastParts.push(ipParts[i] | (255 - subnetParts[i]));
}
// 将结果数组转换为字符串并使用点分隔
return broadcastParts.join('.');
}
/**
* 获取路由广播地址
* @returns
*/
getRouteBroadcastIp(): string {
const defaultNet = connection.getDefaultNetSync();
// 获取默认网络的链路信息
const connectionProperties = connection.getConnectionPropertiesSync(defaultNet);
// 提取链路信息
const linkAddress = connectionProperties.linkAddresses[0];
let broadcastAddress: string = "";
if (linkAddress) {
// 获取 IP 地址
// this.IPAddress = linkAddress.address.address
let ip = linkAddress.address.address;
// 计算子网掩码（了解）
let subnetMask = this.calculateSubnetMask(linkAddress.prefixLength)
// 计算广播地址（了解）
broadcastAddress = this.calculateBroadcastAddress(ip, subnetMask)
}
return broadcastAddress
}
/**
* 发送广播
* @param params
* @param broadcast 是否广播
* @param getData 接收数据回调
*/
// send(params: number[], ip: string, broadcast: boolean, getData: (data: Record<string, string>) => void) {
send(params: number[], broadcast: boolean, getData?: (data: Record<string, string>) => void) {
// let params = [0x66, 0x39, 0x01, 0x01]
let buf = buffer.from(params)
let dataArr = buf.buffer
let udp: socket.UDPSocket = socket.constructUDPSocketInstance()
let bindAddr: socket.NetAddress = {
address: '0.0.0.0',
port: 58090
}
udp.bind(bindAddr, (err: BusinessError) => {
if (err) {
console.log('bind fail')
return;
}
console.log('bind success')
})
udp.setExtraOptions({
broadcast: broadcast
}).then(() => {
udp.on('message', (value: socket.SocketMessageInfo) => {
let data: string = ""
for (let i: number = 0; i < value.message.byteLength; i++) {
let uint8Array = new Uint8Array(value.message)
let messages = uint8Array[i]
let message = String.fromCharCode(messages)
data += message
}
getData && getData({'data': data, 'remoteInfo': JSON.stringify(value.remoteInfo)} as Record<string, string>)
})
udp.send({
data: dataArr,
address: {
// address: ip,
address: this.getRouteBroadcastIp(),
port: 58090
}
})
})
}
/**
* 根据数字形式的IP地址获取字符串形式的IP地址
* @param ipNum
* @returns
*/
static getIpAddrFromNum(ipNum: number): string {
// console.log('wifi信息', (ipNum >>> 24) + '.' + (ipNum >> 16 & 0xFF) + '.' + (ipNum >> 8 & 0xFF) + '.' + (ipNum & 0xFF))
return (ipNum >>> 24) + '.' + (ipNum >> 16 & 0xFF) + '.' + (ipNum >> 8 & 0xFF) + '.' + (ipNum & 0xFF);
}
}
2、调用测页面
import wifiManager from '@ohos.wifiManager';
import { promptAction } from '@kit.ArkUI';
import { LoggerManager, WifiManager } from '@xfh/helper';
@Entry
@Component
struct WifiPage {
build() {
Navigation() {
Scroll() {
Column({ space: 10 }) {
Text('WiFi信息')
Button('WiFi是否打开')
.onClick(() => {
try {
let isWifiActive = wifiManager.isWifiActive()
if (isWifiActive) {
promptAction.showToast({ message: 'WiFi已打开' })
} else {
promptAction.showToast({ message: 'WiFi已关闭' })
}
} catch (error) {
console.error("failed:" + JSON.stringify(error))
promptAction.showToast({ message: '检查WiFi失败' })
}
})
Button('检查是否连接WiFi')
.onClick(() => {
try {
let ret = wifiManager.isConnected()
if (ret) {
promptAction.showToast({ message: '已连接WiFi' })
} else {
promptAction.showToast({ message: '未连接WiFi' })
}
} catch (error) {
console.error("failed:" + JSON.stringify(error));
}
})
Button('当前连接WiFi是否是手机热点')
.onClick(() => {
try {
let isMeteredHotspot = wifiManager.isMeteredHotspot();
promptAction.showToast({ message: '当前连接WiFi是否是手机热点:' + isMeteredHotspot })
} catch (error) {
LoggerManager.error("failed:" + JSON.stringify(error));
}
})
Button('获取WiFi连接信息')
.onClick(() => {
wifiManager.getLinkedInfo((err, data) => {
if (err) {
LoggerManager.error("get linked info error")
return
}
if (data.ssid) {
AlertDialog.show({ message: JSON.stringify(data, null, 2) })
} else {
promptAction.showToast({ message: '未连接WiFi' })
LoggerManager.print(data)
}
})
})
Button('获取WiFi的Ip信息（string）')
.onClick(() => {
let ipInfo = WifiManager.getIpInfo()
AlertDialog.show({ message: JSON.stringify(ipInfo, null, 2) })
})
Button('获取WiFi的Ip信息（number）')
.onClick(() => {
let ipInfo = WifiManager.getIpInfo(false)
AlertDialog.show({ message: JSON.stringify(ipInfo, null, 2) })
})
}
.constraintSize({ minHeight: '100%' })
}
.width('100%')
.height('100%')
}
.title('WiFi管理测试')
.titleMode(NavigationTitleMode.Mini)
}
}
3、效果图
