增加跳转到结算页面的内容。增加支付成功失败的状态

const/actioncmd.js

@@ -17,4 +17,10 @@ export const ACTION_REQUEST_GOOD_INFO = "ACTION_REQUEST_GOOD_INFO";
 export const ACTION_GO_SCAN = "ACTION_GO_SCAN";
 
 //获取店铺信息
-export const ACTION_STORE_INFO = "ACTION_STORE_INFO";
+export const ACTION_STORE_INFO = "ACTION_STORE_INFO";
\ No newline at end of file
+
+//支付成功
+export const ACTION_ON_PAY_SUCCESS = "ACTION_ON_PAY_SUCCESS";
+
+//支付失败
+export const ACTION_ON_PAY_FAILED = "ACTION_ON_PAY_FAILED";

pages/balance/balance.js

 var api = require("../../utils/api.js");
 var payUtils = require("../../utils/payUtils.js");
+import { ACTION_GO_SCAN  } from '../../const/actioncmd'
+import { ACTION_ON_PAY_SUCCESS } from '../../const/actioncmd'
+import { ACTION_ON_PAY_FAILED } from '../../const/actioncmd'
 
 Page({
   data: {
@@ -55,6 +58,26 @@ Page({
 
   },
 
+
+  onshow(){
+    my.ix.onBuddyMessage({
+      success: (res) => {
+        console.info(`onBuddyMessage success: ${JSON.stringify(res)}`);
+        if(res.action == ACTION_GO_SCAN){
+          //增加跳转回去的内容
+        } else {
+          //未知指令
+        }
+      }
+    });
+  },
+
+  onHide() {
+    // 页面隐藏
+    //关闭后屏监听
+    my.ix.offBuddyMessage();
+  },
+
   /**
  * @todo 支付结果的获取
  * @todo 跳转数据的保存
@@ -171,6 +194,22 @@ Page({
           my.redirectTo({
             url: '/pages/paysuccess/paysuccess',
           });
+
+          //发送支付成功到后屏
+          my.ix.sendBuddyMessage({
+            // 填入目标小程序的 AppID
+            target: getApp().globalData.backScreenAppId,
+            data: {
+              action: ACTION_ON_PAY_SUCCESS,
+              data: res.data
+            },
+            success: (res) => {
+              console.info(`sendBuddyMessage success: ${JSON.stringify(res)}`);
+            },
+            fail: (res) => {
+              console.info(`sendBuddyMessage failed: ${JSON.stringify(res)}`);
+            }
+          });
         // }
       } else {
         console.log("支付回调失败，toast提示  ");
@@ -180,6 +219,21 @@ Page({
             content: res.message,
             duration: 2000
         });
+        //发送支付失败到后屏
+        my.ix.sendBuddyMessage({
+          // 填入目标小程序的 AppID
+          target: getApp().globalData.backScreenAppId,
+          data: {
+            action: ACTION_ON_PAY_FAILED,
+            data: null
+          },
+          success: (res) => {
+            console.info(`sendBuddyMessage success: ${JSON.stringify(res)}`);
+          },
+          fail: (res) => {
+            console.info(`sendBuddyMessage failed: ${JSON.stringify(res)}`);
+          }
+        });
       }
     }.bind(this));
   },

pages/scan/scan.js

@@ -49,9 +49,23 @@ Page({
              })
            }
          
-        }else if(res.action == ACTION_GO_BALANCE){
+        } else if (res.action == ACTION_GO_BALANCE) {
            //去结算页面
            context.goBalance();
+           my.ix.sendBuddyMessage({
+            target: getApp().globalData.backScreenAppId,
+            data: {
+              action: ACTION_GO_BALANCE,
+              data:null
+            },
+            success: (res) => {
+              console.log("发送商品数据到后屏小程序成功 ===》"+JSON.stringify(res));
+            },
+            fail: (res) => {
+              console.log("发送商品数据到后屏小程序 失败 ===》 "+JSON.stringify(res));
+              //发送失败重试
+            }
+          })
         }else if(res.action == ACTION_REQUEST_GOOD_INFO){
            //去结算页面
            context.getGoodInfoByBarcode(res.data);