diff --git a/src/app/play/play.component.ts b/src/app/play/play.component.ts
index 73991a1c2182277fc6b9896db5a1ca10e47eb841..6e5b40fe1ede539fc04e53dd0d646394c313fd42 100644
--- a/src/app/play/play.component.ts
+++ b/src/app/play/play.component.ts
@@ -5,6 +5,7 @@
   OnChanges,
   OnInit,
   AfterViewInit, ElementRef, ViewChild,
+  ApplicationRef
 } from '@angular/core'; 
 
 import * as _ from 'lodash';
@@ -35,7 +36,7 @@ export class PlayComponent implements OnInit, OnDestroy, OnChanges, AfterViewIni
   curItemUrl = '';
   curEvt;
 
-  constructor() {
+  constructor(private appRef: ApplicationRef) {
 
   }
   range(start, end) {
@@ -46,7 +47,8 @@ export class PlayComponent implements OnInit, OnDestroy, OnChanges, AfterViewIni
     let _this = this;
     (<any>window).courseware.getData(function(data){ 
       if(data){
-        _this.data.contentObj.titleObj = data;
+        _this.data.contentObj.titleObj.content = data.content;
+        _this.appRef.tick();
       }
     });