手机：华为Mate60 系统：鸿蒙4.0 微信版本：最新 依赖： implementation 'com.tencent.mm.opensdk:wechat-sdk-android-with-mta:+' 华为Mate60调用微信支付失败（换不起微信APP），后台日志打印： register app failed for wechat app signature check failed sendReq failed for wechat app signature check failed 与相关微信客服沟通：提交客服调起数据，查询不到唤起记录 相关代码： //初始化 api = WXAPIFactory.createWXAPI(requireContext(), bean.wxpaypost.appid) val intent = requireActivity().intent api?.handleIntent(intent, this) //点击支付时跳转微信 val req = PayReq() req.appId = bean.wxpaypost.appid req.partnerId = bean.wxpaypost.mch_id req.prepayId = bean.wxpaypost.prepay_id req.packageValue = "Sign=WXPay" req.nonceStr = bean.wxpaypost.nonce_str req.timeStamp = bean.wxpaypost.timestamp.toString() req.sign = bean.wxpaypost.sign val wxApi = WXAPIFactory.createWXAPI(requireContext(), req.appId) wxApi.registerApp(req.appId) wxApi.sendReq(req) 其他手机包括vivo、小米、荣耀（P20，鸿蒙2.0）都正常调起并支付，初步判断鸿蒙4.0有这个问题 APP名称：读乐星空 已上架华为应用商店.