fixed:小程序首页title动态获取miniappName

@@ -258,6 +258,9 @@ App({
   getMiniappType() {
     return wx.getExtConfigSync().miniappType;
   },
+  getMiniappName() {
+    return wx.getExtConfigSync().miniappName;
+  },
   getUnionType() {
     return config.unionType;
   },

@@ -6,6 +6,7 @@
     "name": "wechat",
     "extAppid": "wxe8bfc9b404772199",
     "miniappType": "5",
+    "miniappName": "测试店铺名",
     "attr": {
       "host": "open.weixin.qq.com",
       "users": [

@@ -36,6 +36,10 @@ Page({
   onShow: function() {
     const shopId = app.getShopId();
 
+    wx.setNavigationBarTitle({
+      title: app.getMiniappName(),
+    });
+
     if (shopId) {
       this.getShopData(shopId);
       this.getShopProducts(shopId);
@@ -123,14 +127,6 @@ Page({
 
     indexModel.shopInfo(params)
       .then(res => {
-        if (res.data.shop_name) {
-          let shopName = res.data.shop_name;
-
-          wx.setNavigationBarTitle({
-            title: shopName,
-          });
-        }
-
         let shopInfo = res.data;
 
         this.setData({

 {
-    "navigationBarTitleText": "店铺",
+    "navigationBarTitleText": "",
     "usingComponents": {
         "resources": "/components/resources/resources",
         "copyright": "/components/layout/copyright/copyright",