src/views/safetyEducationExaminationNew/featurePage/learningCourse/index.vue

@@ -266,26 +266,24 @@
       /*=================================== 学习定时器 ===================================*/
       // 初始化定时器
       initTimer() {
-        let self = this;
-        if(this.newData.coursewares[this.checkLearningIndex].learnedDuration == this.newData.coursewares[this.checkLearningIndex].minLearningDuration){
+        // 先清除旧计时器，防止孤儿计时器在切换窗口时复活写入错误数据
+        this.clearTimer();
+        const idx = this.checkLearningIndex;
+        const courseware = this.newData.coursewares[idx];
+        if(courseware.learnedDuration >= courseware.minLearningDuration){
           return
         }
         this.studyTimer = new StudyTimer({
-          initialSeconds: self.newData.coursewares[self.checkLearningIndex].learnedDuration,
-          maxSeconds: self.newData.coursewares[self.checkLearningIndex].minLearningDuration,
+          initialSeconds: courseware.learnedDuration,
+          maxSeconds: courseware.minLearningDuration,
           onTick: (elapsedSeconds) => {
-            //每次计时
-            this.$set(self.newData.coursewares[self.checkLearningIndex],'learnedDuration',elapsedSeconds);
-            //心跳判断
+            this.$set(this.newData.coursewares[idx],'learnedDuration',elapsedSeconds);
             if (elapsedSeconds % this.heartbeatValue === 0) {
-              //调用心跳方法
               this.examUserCoursewareLearningReportProgress();
             }
           },
           onMaxTimeReached: (elapsedSeconds) => {
-            //达到最大值
-            this.$set(self.newData.coursewares[self.checkLearningIndex],'learnedDuration',elapsedSeconds);
-            //调用心跳方法
+            this.$set(this.newData.coursewares[idx],'learnedDuration',elapsedSeconds);
             this.examUserCoursewareLearningReportProgress();
           }
         });
@@ -352,14 +350,8 @@
       },
     },
     beforeDestroy() {
-      if (this.studyTimer) {
-        this.studyTimer.destroy();
-        this.studyTimer = null;
-      }
-      if (this.countdownTimer) {
-        this.countdownTimer.destroy();
-        this.countdownTimer = null;
-      }
+      this.clearTimer();
+      this.clearCountdown();
     },
   }
 </script>