微信小程序 —— 组件 { }

父组件

• search.wxml

<!-- 将数据传递给子组件 -->
<Tabs list="{
     
     {list}}" binditemChange="handleItemChange"></Tabs>

• search.js

Page({
    
    
  data: {
    
    
    list: [
      {
    
    
        id: 0,
        name: 'JavaScript',
        isDone: false,
        isActive: true
      },
      {
    
    
        id: 1,
        name: 'Vue',
        isDone: false,
        isActive: true
      },
      {
    
    
        id: 2,
        name: 'Nodejs',
        isDone: false,
        isActive: true
      },
      {
    
    
        id: 3,
        name: 'Git',
        isDone: false,
        isActive: true
      },
      {
    
    
        id: 4,
        name: 'jQuery',
        isDone: false,
        isActive: true
      },
      {
    
    
        id: 5,
        name: 'Java',
        isDone: false,
        isActive: true
      },
      {
    
    
        id: 6,
        name: 'C++',
        isDone: false,
        isActive: true
      },
      {
    
    
        id: 7,
        name: 'eCharts',
        isDone: false,
        isActive: true
      }
    ]
  },

  handleItemChange(e) {
    
    
    const {
    
     list } = this.data;

    let {
    
     value } = e.detail;

    list.forEach((item) => {
    
    
      const itemName = item.name.toLowerCase()
      if (itemName.includes(value)) {
    
    
        item.isActive = true
      } else {
    
    
        item.isActive = false
      }
    })
    this.setData({
    
    
      list
    })
  }
})

子组件

• todolist.wxml

<view class="container">
  <view class="searchBox">
    <input type="text" class="searchInput" bindinput="handleInput" />
    <image src="../../icon/search.png" class="searchImg" mode="aspectFit" />
  </view>

  <view class="todoListBox">
    <view wx:for="{
     
     {list}}" wx:key="id" class="todolist" hidden="{
     
     {!item.isActive}}">
      <checkbox class="cb">{
   
   {item.name}}</checkbox>
    </view>
    <!-- <view wx:for="{
    
    {list}}" wx:key="id" class="todolist {
    
    {item.isActive ? '' : 'notactive'}}">
      <checkbox class="cb">{
    
    {item.name}}</checkbox>
    </view> -->
  </view>
</view>

• todolist.wxss

.container {
    
    
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  height: 100%;
}

.searchBox {
    
    
  display: flex;
}
.searchInput {
    
    
  padding: 5px;
  border: 1px solid black;
  border-radius: 10px;
  margin-right: 10px;
}
.searchImg {
    
    
  width: 30px;
  height: 30px;
}

.todoListBox {
    
    
  width: 400px;
  height: 300px;
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.todolist {
    
    
  width: 250px;
}
.cb {
    
    
  margin-bottom: 5px;
}

.notactive {
    
    
  display: none;
}

• todolist.js

Component({
    
    
  properties: {
    
    
    list: {
    
    
      type: Array,
      value: []
    }
  },

  data: {
    
    

  },

  methods: {
    
    
    handleInput(e) {
    
    

      let {
    
     value } = e.detail
      value = value.toLowerCase()

      this.triggerEvent("itemChange",{
    
    value})

    }
  }
})