スクロールビューWeChatアプレットのカスタムプルダウン更新

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<scroll-view scroll-y @scrolltolower="handelScrolltolower" 
			:refresher-threshold="50"
			:refresher-enabled="true"
			:refresher-triggered="refresherTriggered"
			@refresherrefresh="refresherrefresh"
			@refresherrestore="refresherrestore"
			@refresherabort="refresherabort"
			class="list-view">
           
            <view class="cu-load" :class="isFinish?'over':'loading'"></view>
        </scroll-view>

 data(){
     return {
           isFinish: false,
           approvalList: [],
           param: {
               page: 1,
               limit: 10,
               myStarted: true
           },
		refresherTriggered: false,
		_refresherTriggered: false
       }
   },

			refresherrefresh(){
				console.log("自定义下拉刷新被触发");
				let _this = this;
				if (_this._refresherTriggered) {
					return;
				}
				_this._refresherTriggered = true;
				//界面下拉触发，triggered可能不是true，要设为true
				if (!_this.refresherTriggered) {
					_this.refresherTriggered = true;
				}
				this.loadStoreData();
			},
			refresherrestore(){
				console.log("自定义下拉刷新被复位");
				let _this = this;
				_this.refresherTriggered = false;
				_this._refresherTriggered = false;
			},
			refresherabort(){
				console.log("自定义下拉刷新被中止	");
				let _this = this;
				_this.refresherTriggered = false;
				_this._refresherTriggered = false;
			},
			loadStoreData() {
				let _this = this;
				setTimeout(() => {
					_this.refresherTriggered = false;//触发onRestore，并关闭刷新图标
					_this._refresherTriggered = false;
				}, 1000)
				//重新请求数据
				this.param.myStarted = true;
				this.isFinish = false;
				this.param.page = 1;
				this.param.limit = 10;
				this.approvalList = [];
				this.getApprovalList();
			},
			//获取列表 
            getApprovalList(){
                if(!this.isFinish){
                    let param = {...this.param,...this.selectParam}
                    this.$request.get(this.$api.GET_AREAS_LIST,param)
                        .then((response) => {
							console.log("获取列表",response.data);
                            this.approvalList = [...this.approvalList,...response.data.list]
                            if(this.approvalList.length === response.data.totalCount) this.isFinish = true
                            this.param.page++
                        })
                        .catch((err) => {
                            console.log(err);
                        })
                }
            },