小程序中多滑块的实现代码

最近在用原生的代码开发小程序，需要用到多滑块的slider，但是官方的api只支持单滑块，所以就在原来的基础上草草的写了一个。有什么不足的地方还请大家多多指教，想封装成组件的也可自行封装，我这就不讲了。；

话不多说，上代码：

html:

  
    ￥{{leftShowValue}}
    ￥{{rightShowValue}}
  

  
    
      
    
    
  

css

.sliderHCon {
  height: 250rpx;
  width: 100%;
  margin: auto;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

.MoneyValue {
  font-size: 30rpx;
  text-align: center;
  color: #999;
  margin-top: 15rpx;
}

.showMoney text {
  margin-right: 30rpx;
}

.twoSlider {
  width: 100%;
  height:100px;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  position: relative;
}
.slider-left,.slider-right{position: absolute;left:0;right:0;}
.slider-bg{position: absolute;top:50%;margin-top:-1px;left:0;width:100%;height:2px;background: blue;z-index: 9;}

js

data: {
      blockSize:20,
      step:10,
      Min: 0, //最小值
      Max: 1000, //最大值
      leftValue: 0, //左边滑块默认值
      rightValue: 1000, //右边滑块默认值
      leftShowValue: 0, //界面显示左边滑块默认值
      rightShowValue: 1000, //界面显示右边滑块默认值
      leftWidth: &＃39;50&＃39;, //左边滑块可滑动长度：百分比
      rightWidth: &＃39;50&＃39;, //右边滑块可滑动长度：百分比
      sliderWidth:0, // slider的宽度；
      setSliderLeftX: 0, // 设置的sliderp的left
      setSliderWidthX: 0// 设置的sliderp的width
    },

onLoad(options) {
      var query = wx.createSelectorQuery(); // 如果是封装的组件的话，这边请注意写法不同哦；
      query.select(&＃39;.slider-left&＃39;).boundingClientRect((rect) => {        
        this.setData({
          sliderWidth: rect.width,
          setSliderLeftX: (rect.width / this.data.Max * this.data.leftValue) + this.data.blockSize/2 + &＃39;px&＃39;,
          setSliderWidthX: rect.width / this.data.Max * (this.data.rightValue - this.data.leftValue) - this.data.blockSize + &＃39;px&＃39;,
        })
        
      }).exec();
        
    },

 // 左边滑块滑动的值
  leftChange(e){
    
    var that = this;
    that.setData({
      leftValue: e.detail.value //设置左边当前值
    })
    this.setSliderBgColor(e,&＃39;left&＃39;);
  },
  // 右边滑块滑动的值
  rightChange: function (e) {
    var that = this;
    that.setData({
      rightValue: e.detail.value,
    })
    this.setSliderBgColor(e, &＃39;right&＃39;);
  },

  setSliderBgColor(e, type){
      if (type == &＃39;left&＃39;) { // 左边
        if (this.data.leftValue = 0) {
        this.setData({
          setSliderLeftX: (v * this.data.leftShowValue) + this.data.blockSize / 2 + &＃39;px&＃39;,
          setSliderWidthX: v * (this.data.rightShowValue - this.data.leftShowValue) - this.data.blockSize + &＃39;px&＃39;,
        })
       // console.log(1)
      } else {
        this.setData({
          setSliderLeftX: (v * this.data.leftShowValue) + this.data.blockSize / 2 + &＃39;px&＃39;,
          setSliderWidthX: 0 + &＃39;px&＃39;,
        })
     
      }
    
   
  }