小程序評價星級


.wxml
<view class="evaluateLv">
  <view class="leftCont">星級評價:</view>
  <view class="rightCont flex flex-ac">
    <block wx:for="{{lvList}}" wx:key="item">
      <view class="list-item">
        <image class="block" src="{{item}}" bindtap="evaluateLv" data-index="{{index}}"></image>
      </view>
    </block>
  </view>
</view>
.wxss
.evaluateLv{display: flex;align-items: center;}
.evaluateLv .leftCont {width: 25%;}
.evaluateLv .rightCont {width: 75%;display: flex;align-items: center;}
.evaluateLv .rightCont .list-item {width: 15%;}
.evaluateLv image {width: 48rpx;height: 48rpx;}

.js

data: {
  lvList:[
    '/images/btn_star_default.png',
    '/images/btn_star_default.png',
    '/images/btn_star_default.png',
    '/images/btn_star_default.png',
    '/images/btn_star_default.png',
  ],//星星個數
  lvListActive1: '/images/btn_star_default.png',//選中的
  lvListActive2:'/images/btn_star_select.png',//未選中的
},
 
//星級評價
evaluateLv(e){
  console.log(e);
  var that = this;
  var idx = e.currentTarget.dataset.index;
  var lvList = that.data.lvList;
  lvList.forEach((item,index) => {
    if (index <= idx){
      lvList[index] = that.data.lvListActive2;
    }
    else{
      lvList[index] = that.data.lvListActive1;
    }
  })
  that.setData({
    lvList: lvList,
  })
},

 


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