改进地址选择页面的逻辑，但是代码有点不可控制

pages/address/address.js

@@ -13,19 +13,23 @@ Page({
   },
 
   bindChangeProvince: function(e) {
-    var p = this.data.arrayProvince[this.data.indexProvince]
+    var p = this.data.arrayProvince[e.detail.value]
+    var arrayCity = district.cities(p)
+    var c = arrayCity[0]
     var currentAddress = this.data.address
     currentAddress.province = p
     this.setData({
       indexProvince: e.detail.value,
-      arrayCity: district.cities(p),
+      arrayCity: arrayCity,
+      arrayCounty:district.counties(p,c),
       address: currentAddress
     })
+    wx.setStorageSync('currentDistrict', [this.data.indexProvince, this.data.indexCity, this.data.indexCounty])
   },
 
   bindChangeCity: function(e) {
     var p = this.data.arrayProvince[this.data.indexProvince]
-    var c = this.data.arrayCity[this.data.indexCity]
+    var c = this.data.arrayCity[e.detail.value]
     var currentAddress = this.data.address
     currentAddress.city = c
     this.setData({
@@ -33,6 +37,7 @@ Page({
       arrayCounty: district.counties(p,c),
       address: currentAddress
     })
+    wx.setStorageSync('currentDistrict', [this.data.indexProvince, this.data.indexCity, this.data.indexCounty])
   },
 
   bindChangeCounty: function(e) {
@@ -43,6 +48,7 @@ Page({
       indexCounty: e.detail.value,
       address: currentAddress
     })
+    wx.setStorageSync('currentDistrict', [this.data.indexProvince, this.data.indexCity, this.data.indexCounty])
   },
 
   formSubmit: function(e) {
@@ -57,6 +63,20 @@ Page({
   },
 
   onLoad (params) {
-    this.setData({'arrayProvince': district.provinces()})
+    var address = wx.getStorageSync('address')
+    this.setData({'address': address})
+    var currentDistrict = wx.getStorageSync('currentDistrict') || [0, 0, 0]
+
+    var arrayProvince = district.provinces()
+    this.setData({
+      indexProvince: currentDistrict[0],
+      indexCity:     currentDistrict[1],
+      indexCounty:   currentDistrict[2],
+      arrayProvince: arrayProvince
+    })
+    var arrayCity     = district.cities(arrayProvince[currentDistrict[0]])
+    this.setData({arrayCity: arrayCity})
+    var arrayCounty   = district.counties(arrayProvince[currentDistrict[0]], arrayCity[currentDistrict[1]])
+    this.setData({arrayCounty: arrayCounty})
   }
 })

pages/cart/cart.js

@@ -1,16 +1,15 @@
 Page({
   data: {
-    address: 0
+    address: null
   },
 
-  // onLoad: function (params) {
-  //   debugger
-  // },
+  onLoad: function (params) {
+  },
 
-  // onShow: function (params) {
-  //   var address = wx.getStorageSync('address')
-  //   this.setData({'address': address})
-  // },
+  onShow: function (params) {
+    var address = wx.getStorageSync('address')
+    this.setData({'address': address})
+  },
 
   // bindBilling: function () {
   //   var cartItems = wx.getStorageSync('cartItems')

pages/cart/cart.wxml

@@ -1,8 +1,10 @@
-<view wx:if="{{ address > 0 }}"  bindtap="bindTapAddress">
-  <text>{{address}}</text>
-  <text>修改地址</text>
+<view wx:if="{{ address }}"  bindtap="bindTapAddress">
+  <text>{{address.province}} {{address.city}} {{address.county}} {{address.detail}}</text>
+  <view>
+    <text>修改地址</text>
+  </view>
 </view>
 <view wx:else bindtap="bindTapAddress">
-  <text>add new address</text>
+  <text>填写收货地址</text>
 </view>
 

utils/address_data.js

@@ -12,9 +12,7 @@ function cities (province) {
 
 function counties (province, city) {
   var counties = district[province].find(function(ele){
-    var pageData = getApp().getCurrentPage().data
-    var city = pageData.arrayCity[pageData.indexCity]
-    return city !== undefined
+    return ele.city === city
   })
   return counties.county
 }