HarmonyOS NEXT 鸿蒙微信登录（保姆级）_鸿蒙开发微信登录

一.在微信开放平台上申请AppID

需要填入Bundle ID（APP包名）和Identifier（AGC上架APP的标识）

审核通过后，拿到一个APPID，在步骤3有大用

二.使用命令下载SDK依赖

ohpm i @tencent/wechat_open_sdk

下载好了之后，oh-package中就有了微信的SDK

3.封装微信登录API，封装成一个.ets文件即可

import * as wxopensdk from \'@tencent/wechat_open_sdk\';export const APP_ID: string = \"\" //微信开放平台上审核通过得到的APPID填进去export type OnWXReq = (req: wxopensdk.BaseReq) => voidexport type OnWXResp = (resp: wxopensdk.BaseResp) => voidclass WXApiEventHandlerImpl implements wxopensdk.WXApiEventHandler { private onReqCallbacks: Map = new Map private onRespCallbacks: Map = new Map registerOnWXReqCallback(on: OnWXReq) { this.onReqCallbacks.set(on, on) } unregisterOnWXReqCallback(on: OnWXReq) { this.onReqCallbacks.delete(on) } registerOnWXRespCallback(on: OnWXResp) { this.onRespCallbacks.set(on, on) } unregisterOnWXRespCallback(on: OnWXResp) { this.onRespCallbacks.delete(on) } onReq(req: wxopensdk.BaseReq): void { wxopensdk.Log.i(kTag, \"onReq:%s\", JSON.stringify(req)) this.onReqCallbacks.forEach((on) => { on(req) }) } onResp(resp: wxopensdk.BaseResp): void { wxopensdk.Log.i(kTag, \"onResp:%s\", JSON.stringify(resp)) this.onRespCallbacks.forEach((on) => { on(resp) }) }}export const WXApi = wxopensdk.WXAPIFactory.createWXAPI(APP_ID) //用于调用sendReq,向微信端发送给消息export const WXEventHandler = new WXApiEventHandlerImpl //用于注册回调监听

4.在EntryAbility中添加代码，它们的作用：响应来自微信的回调

export default class EntryAbility extends UIAbility { onCreate(want: Want, _launchParam: AbilityConstant.LaunchParam): void { this.handleWeChatCallIfNeed(want) } onNewWant(want: Want, _launchParam: AbilityConstant.LaunchParam): void { this.handleWeChatCallIfNeed(want) } private handleWeChatCallIfNeed(want: Want) { //放在与onCreate同级 WXApi.handleWant(want, WXEventHandler) }}

5.页面点击触发微信登录

import * as wxopensdk from \'@tencent/wechat_open_sdk\';import { WXApi } from \'accomponentitemlib\';import { common } from \'@kit.AbilityKit\';@State @Watch(\'wxLogin\') authCode: string = \'\' // 拿到userCode就可以调用接口了private onWXResp: OnWXResp = (resp) => {//从微信返回的回调 this.authResult = JSON.stringify(resp ?? {}, null ,2) //微信返回的数据 this.authCode =JSON.parse(this.authResult).code}async wxLogin() {//调用接口的逻辑(api) }async aboutToAppear() { WXEventHandler.registerOnWXRespCallback(this.onWXResp)}aboutToDisappear(){ WXEventHandler.unregisterOnWXRespCallback(this.onWXResp)}text(\'微信登录\').onClick(() => { let req = new wxopensdk.SendAuthReq //new一个实例 req.isOption1 = false req.nonAutomatic = true req.scope = \'snsapi_userinfo,snsapi_friend,snsapi_message,snsapi_contact\' req.state = \'none\' req.transaction =\'test123\' let loginState = await WXApi.sendReq(getContext() as common.UIAbilityContext, req) if (!loginState) { AlertDialog.show({ message: \'微信未安装\'}) }})