Fix：5956 【商城小程序】进入招商项目页面，连续点击多次招商项目文件，阅读文件左滑返回后有报错

v4/views/attract/projectList.vue

@@ -34,6 +34,7 @@ export default {
       pages: 0, // 总页数
       list: [],
       os: '',
+      isClick: false, // 防止连续点击重复请求/跳转
       pageKeyId: Object.freeze('investmentList')
     }
   },
@@ -41,6 +42,10 @@ export default {
     this.getOS()
     this.getData()
   },
+  onShow() {
+    // 从文件阅读页返回时解锁，允许再次点击
+    this.isClick = false
+  },
   onReachBottom() {
     if (this.pages >= this.page) this.getData()
   },
@@ -67,6 +72,8 @@ export default {
       })
     },
     getDetail(id) {
+      if (this.isClick) return
+      this.isClick = true
       investmentInfo(id).then(({data}) => {
         const file = data.contents[0];
         if (file.suffix === 'pdf' && this.os === 'android') {
@@ -77,6 +84,8 @@ export default {
             url: '/pkg_common/views/pdf?path=' + encodeURI(path) + '&id=' + id
           })
         }
+      }).catch(() => {
+        this.isClick = false
       })
     },
     viewPdf(url) {
@@ -89,8 +98,10 @@ export default {
             fileType: 'pdf',
             success: result => {
               //成功
+              this.isClick = false
             },
             fail: err => {
+              this.isClick = false
               uni.showModal({
                 title: 'openDocument fail',
                 content: JSON.stringify(err)
@@ -99,6 +110,7 @@ export default {
           })
         },
         fail: err => {
+          this.isClick = false
           uni.showModal({
             title: 'downloadFile fail',
             content: JSON.stringify(err)