兑换券

app.json

 {
   "pages": [
-    "pages/home/home",
     "pages/login/login",
     "pages/paysuccess/paysuccess",
     "pages/balance/balance",
-    "pages/scan/scan"
+    "pages/scan/scan",
+    "pages/home/home"
   ],
   "window": {
     "defaultTitle": ""

pages/home/home.js

@@ -9,7 +9,7 @@ import { ACTION_CONVERT_COUPON } from '../../const/actioncmd'
 Page({
   data: {
     //显示弹窗，>1为显示，2loading 3 result success 4 result failed
-    scanDialogDisplay: 1
+    scanDialogDisplay: 0
   },
 
   onLoad() {
@@ -86,7 +86,13 @@ Page({
     });
   },
 
- 
+ //外接扫码枪事件
+  onKeyPress(r) {
+    console.log("scan onKeyPress==>" + r);
+    if(this.data.scanDialogDisplay != 0){
+       this.verifyCoupon(r);
+    }
+  },
 
   onHide() {
     // 页面隐藏
@@ -104,7 +110,9 @@ Page({
   //核销券
   verifyCoupon(code) {
     this.setData({scanDialogDisplay:2})
-    this.sendConvertCouponToBack(2)
+    var commonRequest = {};
+    commonRequest.state = 2
+    this.sendConvertCouponToBack(commonRequest)
     var couponRequest = api.createCommonRequest();
     couponRequest.couponCode = code;
     console.log("核销券的请求 ==>" + JSON.stringify(couponRequest));
@@ -116,18 +124,27 @@ Page({
       timeout: 30000,
       data: couponRequest,
       success: (res) => {
+         console.log("核销券成功 ==>" + JSON.stringify(res));
         if (res.data.success != true) {
-          context.sendConvertCouponToBack(4)
+           var commonRequest = {};
+           commonRequest.state = 4
+           commonRequest.msg = res.data.errorMsg
+          context.sendConvertCouponToBack(commonRequest)
           this.setData({scanDialogDisplay:4})
-          console.log("核销券失败 ==>" + res.data.message);
+          console.log("核销券失败 ==>" + res.data.errorMsg);
         } else {
-          context.sendConvertCouponToBack(3)
+           var commonRequest = {};
+           commonRequest.state = 3
+          context.sendConvertCouponToBack(commonRequest)
           this.setData({scanDialogDisplay:3})
           console.log("核销券成功 ==>" + JSON.stringify(res));
         }
       },
       fail: (res) => {
-        context.sendConvertCouponToBack(4)
+        var commonRequest = {};
+        commonRequest.state = 4
+        commonRequest.msg = "网络异常"
+        context.sendConvertCouponToBack(commonRequest)
         this.setData({scanDialogDisplay:4})
         console.log("核销券失败 ==>" + JSON.stringify(res));
         my.showToast({