没有vid 自动返回上一页

learnOnline/pages/videoPlayer/show.js

@@ -160,7 +160,23 @@ Page({
       })
     })
   },
-  onLoad: function (options) { this.data.options = options; },
+  onLoad: function (options) {
+    if(!options.vid){
+      wx.showToast({
+        title: '获取视频失败',
+        icon: 'loading',
+        duration: 3000,
+        success:function(){
+          setTimeout(function(){
+            wx.navigateBack({
+              delta: 1
+            })
+          },2000)
+        }
+      })
+    }
+    this.data.options = options;
+  },
   onHide: function () { this.isBackend = true; this.pauseVA(); clearInterval(this.heartbeat); },
   onUnload: function () { this.pauseVA(); },
   onShow: function () {