c-picker-item

滚动选择器

属性

示例

<template>
<page title="c-picker-item演示">
  <view class="container">
    <text class="select-text">选择的值：{{provins[provinsIndex]}}</text>
    <c-picker-item 
      text-align="center" 
      height="{{400}}" 
      list="{{provins}}" 
      default-index="{{defaultIndex}}"
      c-bind:selectchange="selectchange"
    >
    </c-picker-item>
  </view>
</page>
</template>
<script>
import { provins } from "./data";
class CPickerItem {
  data = {
    provins: [
      "北京市",
      "天津市",
      "河北省",
      "山西省",
      "内蒙古",
      "辽宁省",
      "吉林省",
      "黑龙江省",
      "上海市",
      "江苏省",
      "浙江省",
      "安徽省",
      "福建省",
      "江西省",
      "山东省",
      "河南省",
      "湖北省",
      "湖南省",
      "广东省",
      "广西",
      "海南省",
      "重庆市",
      "四川省",
      "贵州省",
      "云南省",
      "西藏",
      "陕西省",
      "甘肃省",
      "青海",
      "宁夏",
      "新疆"
    ],
    defaultIndex: 0,
    provinsIndex: 0
  }

  computed = {}
  watch  = {}

  methods = {
    selectchange(e) {               
      this.provinsIndex = this.defaultIndex = e.detail.index;
    }
  }

  beforeCreate() {}
  created() {}
  beforeMount() {}
  mounted() {}
  beforeDestroy() {}
  destroyed() {}
}

export default new CPickerItem();
</script>
<style scoped>
.container {
  background: #f8f8f8;
}
.page-demo {
  background: #fafafa;
}
.title-text {
  color: #999;
  margin: 30cpx 20cpx 10cpx;
  display: block;
  font-size: 28cpx;
}
.picker-item {
  background: #fff;

  border-top: 1px solid #d9d9d9;
  border-bottom: 1px solid #d9d9d9;
  display: flex;
  flex-direction: row;
}
.picker-text-left {
  font-size: 40cpx;
  height: 70cpx;
  line-height: 70cpx;
  margin-left: 20cpx;
  width: 300cpx;
}
.picker-text-right {
  font-size: 40cpx;
  height: 70cpx;
  line-height: 70cpx;
  margin-left: 20cpx;
  flex: 1;
  text-align: center;
}
.select-text {
  font-size: 32cpx;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
}
</style>
<script cml-type="json">
{
    "base": {
        "usingComponents": {
            "c-picker-item": "cml-ui/components/c-picker-item/c-picker-item"
        }
    }
}
</script>

wx

web

native

Bug & Tip

1.使用c-picker-item组件时控制显示隐藏需要在该组件的父节点上添加c-if指令，保证隐藏时父节点被销毁，否则会导致微信小程序错误。