update：更新列表导航

src/engine/view/list-exp-view-engine.ts

-import ViewEngine from './view-engine';
+import { ExpViewEngine } from './exp-view-engine';
 
 /**
  * 列表导航视图界面引擎
@@ -7,24 +7,7 @@ import ViewEngine from './view-engine';
  * @class ListExpViewEngine
  * @extends {ViewEngine}
  */
-export default class ListExpViewEngine extends ViewEngine {
-
-    /**
-     * 列表导航栏部件
-     *
-     * @type {*}
-     * @memberof ListExpViewEngine
-     */
-    public listExpBar: any = null;
-
-    /**
-     * Creates an instance of ListExpViewEngine.
-     * 
-     * @memberof ListExpViewEngine
-     */
-    constructor() {
-        super();
-    }
+export class ListExpViewEngine extends ExpViewEngine {
 
     /**
      * 初始化引擎
@@ -33,77 +16,17 @@ export default class ListExpViewEngine extends ViewEngine {
      * @memberof ListExpViewEngine
      */
     public init(options: any): void {
-        this.listExpBar = options.listexpbar;
+        this.expBar = options.listexpbar;
         super.init(options);
     }
 
-
     /**
-     * 引擎加载
-     *
+     * @description 视图销毁
      * @memberof ListExpViewEngine
      */
-    public load(): void {
-        super.load();
-        if (this.getListExpBar() && this.isLoadDefault) {
-            const tag = this.getListExpBar().name;
-            this.setViewState2({ tag: tag, action: 'load', viewdata: this.view.viewparams });
-        } else {
-            this.isLoadDefault = true;
-        }
+    public destroyed() {
+        super.destroyed();
+        this.expBar = null;
     }
 
-    /**
-     * 部件事件机制
-     *
-     * @param {string} ctrlName
-     * @param {string} eventName
-     * @param {*} args
-     * @memberof ListExpViewEngine
-     */
-    public onCtrlEvent(ctrlName: string, eventName: string, args: any): void {
-        super.onCtrlEvent(ctrlName, eventName, args);
-        if (Object.is(ctrlName, 'listexpbar')) {
-            this.listExpBarEvent(eventName, args);
-
-        }
-    }
-
-    /**
-     * 列表导航事件
-     *
-     * @param {string} eventName
-     * @param {*} args
-     * @memberof ListExpViewEngine
-     */
-    public listExpBarEvent(eventName: string, args: any): void {
-        if (Object.is(eventName, 'load')) {
-            this.view.$emit('viewload', args);
-        }
-        if (Object.is(eventName, 'selectionchange')) {
-            this.view.$emit('viewdataschange', args);
-        }
-        if (Object.is(eventName, 'activated')) {
-            this.view.$emit('viewdatasactivated', args);
-        }
-    }
-
-    /**
-     * 获取部件对象
-     *
-     * @returns {*}
-     * @memberof ListExpViewEngine
-     */
-    public getListExpBar(): any {
-        return this.listExpBar;
-    }
-
-    /**
-     * @description 销毁
-     * @memberof ListExpViewEngine
-     */
-    public destroy() {
-        super.destroy();
-        this.listExpBar = null;
-    }
 }
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