uniapp手指滑动事件

<view class="text-area" @touchstart="start" @touchend="end"></view>

data() {
  return {
	startData: {
	  clientX: 0,
	  clientY: 0
	}
  }
},
methods:{
  start(e){           
    this.startData.clientX=e.changedTouches[0].clientX;      
    this.startData.clientY=e.changedTouches[0].clientY;
  },
  end(e){
    // console.log(e)
    const subX=e.changedTouches[0].clientX-this.startData.clientX;
    const subY=e.changedTouches[0].clientY - this.startData.clientY;
    if(subY>50 || subY<-50){
       console.log('上下滑')
    }else{
       if(subX>100){
         console.log('右滑')
       }else if(subX<-100){
         console.log('左滑')
       }else{
         console.log('无效')
       }
    }
  }
}