快应用开发 实现可拖动调节亮度(源码分享)

<div id="sliderBox" ontouchstart="SliderX_Start" ontouchmove="SliderX_Move">
    <div style="width:{{ slideWidth }}"></div>
</div>

export default {
private: {
    slideWidth: 0,
    startX: 0,
    moveEndX: 0,
    X: 0 
     // 亮度控制
    SliderX_Start(e){
        this.startX = e.touches[0].pageX - e.touches[0].offsetX;
         console.log('--------------->> e：',e);
    },
    SliderX_Move(e){
        this.moveEndX = e.changedTouches[0].pageX;
        this.X = this.moveEndX - this.startX;
        this.slideWidth =  parseInt(this.X);
         console.log('--------------->> 移动距离：',parseInt(this.X));
     },
}