fix: v3 vue <map> API 不支持通过 $getAppMap 获取原生map对象的Bug

src/core/service/api/context/create-map-context.js

@@ -34,6 +34,10 @@ export class MapContext {
     operateMapPlayer(this.id, this.pageVm, 'includePoints', args)
   }
 }
+
+MapContext.prototype.$getAppMap = function() {
+  return plus.maps.getMapById(this.pageVm.$page.id + '-map-' + this.id);
+}
 
 methods.forEach(function (method) {
   MapContext.prototype[method] = callback.warp(function (options, callbackId) {

src/platforms/app-plus/view/components/map/index.vue

@@ -188,7 +188,7 @@ export default {
     if (this.latitude && this.longitude) {
       mapStyle.center = new plus.maps.Point(this.longitude, this.latitude)
     }
-    const map = this.map = plus.maps.create('map' + Date.now(), mapStyle)
+    const map = this.map = plus.maps.create(this.$page.id + '-map-' + (this.id || Date.now()), mapStyle)
     map.__markers__ = {}
     map.__lines__ = []
     map.__circles__ = []