scroll-view 使用自定义下拉刷新， 出现抖动闪烁

uniapp中,scroll-view 使用自定义下拉刷新，长按屏幕会出现抖动闪烁,附件有视频
手机型号iphone11
html:附件有视频

<scroll-view scroll-y="true" refresher-enabled refresher-background="#F5F6F8"  
             @refresherrefresh="onRefresh" :refresher-triggered="triggered">  
</scroll-view>

js:

export default {  
        data() {  
            return {  
                triggered:false,//设置当前下拉刷新状态，true 表示下拉刷新已经被触发，false 表示下拉刷新未被触发  
            }  
        },ds: {  
            onRefresh(){//下拉刷新  
                let that = this;  
                this.triggered = true;  
                setTimeout(()=>{  
                    that.triggered = false;  
                },2000);  
            },  
        }  
    }