修改一道题收藏不了的问题

src/modules/exam-module/src/ExamTopic.vue

@@ -177,6 +177,11 @@ export default {
         observer: true,
         autoHeight: true,
         on: {
+          init() {
+            setTimeout(() => {
+              _this.setCurrentCollect()
+            }, 500)
+          },
           slideChangeTransitionStart: function() {
             _this.sildesHeightCount()
             _this.setCurrentCollect()
@@ -262,6 +267,9 @@ export default {
   methods: {
     sildesHeightCount() {
       // slides高度重新赋值
+      if (document.getElementById('bottom-view-btn') === null) {
+        return false
+      }
       const computedStyle = window.getComputedStyle(this.swiper.slides[this.swiper.activeIndex], null)
       const topView = document.getElementById('top-view').clientHeight
       const bottomView = document.getElementById('bottom-view-btn').clientHeight
@@ -675,7 +683,7 @@ export default {
             setTimeout(() => {
               this.currentNum = res.answers.answerPage + 1
               this.swiper.slideTo(res.answers.answerPage, 0, false)
-              this.setCurrentCollect()
+              // this.setCurrentCollect()
               this.currentNum === this.questionsData.sheet.question_count ? this.nextBtnShow = false : this.nextBtnShow = true
             }, 100)
           }
@@ -688,16 +696,16 @@ export default {
           this.requestData = datas
           this.requestData2 = Object.keys(datas).length
         } else {
-          setTimeout(() => {
-            this.setCurrentCollect()
-          }, 300)
+          // setTimeout(() => {
+          //   this.setCurrentCollect()
+          // }, 300)
           this.requestData = {}
           this.requestData2 = 0
         }
       })
     },
     setCurrentCollect() {
-      if (!this.nextBtnShow) {
+      if (this.swiper.activeIndex + 1 === this.swiper.slides.length) {
         return false
       }
       const itemDid = this.swiper.slides[this.swiper.activeIndex].attributes['data-dId'].nodeValue