增加首页跳转到扫码页

const/actioncmd.js

@@ -13,3 +13,8 @@ export const ACTION_GO_BALANCE = "ACTION_GO_BALANCE";
 //请求商品条码
 export const ACTION_REQUEST_GOOD_INFO = "ACTION_REQUEST_GOOD_INFO";
 
+//去扫码页面
+export const ACTION_GO_SCAN = "ACTION_GO_SCAN";
+
+//获取店铺信息
+export const ACTION_STORE_INFO = "ACTION_STORE_INFO";
\ No newline at end of file

pages/home/home.js

@@ -2,6 +2,8 @@ import { Page } from '../../utils/scan';
 import { API_USE_COUPON } from '../../const/apiurl'
 var api = require("../../utils/api.js");
 
+import { ACTION_GO_SCAN } from '../../const/actioncmd'
+
 Page({
   data: {
     scanDialogDisplay: 0
@@ -11,6 +13,43 @@ Page({
 
   },
 
+  onshow(){
+    my.ix.onBuddyMessage({
+      success: (res) => {
+        console.info(`onBuddyMessage success: ${JSON.stringify(res)}`);
+        if(res.action == ACTION_GO_SCAN){
+          //跳转到扫码页面
+          my.redirectTo({
+            url: "/pages/scan/scan"
+          });
+          my.ix.sendBuddyMessage({
+            // 填入目标小程序的 AppID
+            target: getApp().globalData.backScreenAppId,
+            data: {
+              action: ACTION_GO_SCAN,
+              data: null
+            },
+            success: (res) => {
+              console.info(`sendBuddyMessage success: ${JSON.stringify(res)}`);
+            },
+            fail: (res) => {
+              console.info(`sendBuddyMessage failed: ${JSON.stringify(res)}`);
+            }
+          });
+        } else {
+          //未知指令
+        }
+      }
+    });
+  },
+
+  onHide() {
+    // 页面隐藏
+    //关闭后屏监听
+    my.ix.offBuddyMessage();
+  },
+
+
   onReady() {
     if (my.canIUse('hideBackHome')) {
       my.hideBackHome();
@@ -18,9 +57,7 @@ Page({
   },
 
   homeTap() {
-    my.redirectTo({
-        url: "/pages/scan/scan"
-      });
+   
   },
 
   //显示弹窗，>1为显示，2loading 3 result success 4 result failed