微信支付那点事

1.首先下载SDK；导入工程；

2.在xcode中打开项目设置URL Schemes：（为本身）APPId；

3.导入头文件，在AppDelegate中调用[WXApi registerApp：@"APPId" withDescription：@"weiXinPayDemo"];注册APPID；

4.调起支付：

  ///1.调用微信支付

        let req = PayReq()

        req.partnerId = model?.partnerid

        req.prepayId = model?.prepayid

        req.nonceStr = model?.noncestr

        req.timeStamp = UInt32((model?.timestamp!)!)

        req.package = model?.package

        req.sign = model?.sign

        WXApi.send(req)

5.支付结果回调

func onResp(_ resp: BaseResp!){

        var strTitle = "支付结果"

        var strMsg = "what:\(resp.errCode)"

        if "\(resp.classForCoder)" == "PayResp"{

            print("retcode = \(resp.errCode), retstr = \(resp.errStr)")

            switch resp.errCode

            {

  case 0 :NotificationCenter.default.post(name: NSNotification.Name(rawValue: "WXPaySuccessNotification"), object: nil)

              default:

                strMsg = "支付失败，请您从新支付!"

            }

        }

    }