Vant DropdownMenu 下拉菜單

引入

"usingComponents": {
  "van-dropdown-menu": "@vant/weapp/dropdown-menu/index",
  "van-dropdown-item": "@vant/weapp/dropdown-item/index"
}

代碼演示

基礎(chǔ)用法

<van-dropdown-menu>
  <van-dropdown-item value="{{ value1 }}" options="{{ option1 }}" />
  <van-dropdown-item value="{{ value2 }}" options="{{ option2 }}" />
</van-dropdown-menu>

Page({
  data: {
    option1: [
      { text: '全部商品', value: 0 },
      { text: '新款商品', value: 1 },
      { text: '活動商品', value: 2 },
    ],
    option2: [
      { text: '默認排序', value: 'a' },
      { text: '好評排序', value: 'b' },
      { text: '銷量排序', value: 'c' },
    ],
    value1: 0,
    value2: 'a',
  },
});

自定義菜單內(nèi)容

通過插槽可以自定義DropdownItem的內(nèi)容，此時需要使用實例上的toggle方法手動控制菜單的顯示

<van-dropdown-menu>
  <van-dropdown-item value="{{ value1 }}" options="{{ option1 }}" />
  <van-dropdown-item id="item" title="{{ itemTitle }}">
    <van-cell title="{{ switchTitle1 }}">
      <van-switch
        slot="right-icon"
        size="24px"
        style="height: 26px"
        checked="{{ switch1 }}"
        bind:change="onSwitch1Change"
      />
    </van-cell>
    <van-cell title="{{ switchTitle2 }}">
      <van-switch
        slot="right-icon"
        size="24px"
        style="height: 26px"
        checked="{{ switch2 }}"
        bind:change="onSwitch2Change"
      />
    </van-cell>
    <van-button type="info" block bind:click="onConfirm">
      確定
    </van-button>
  </van-dropdown-item>
</van-dropdown-menu>

Page({
  data: {
    switchTitle1: '包郵',
    switchTitle2: '團購',
    itemTitle: '篩選',
    option1: [
      { text: '全部商品', value: 0 },
      { text: '新款商品', value: 1 },
      { text: '活動商品', value: 2 },
    ],
    value1: 0,
  },

  onConfirm() {
    this.selectComponent('#item').toggle();
  },

  onSwitch1Change({ detail }) {
    this.setData({ switch1: detail });
  },

  onSwitch2Change({ detail }) {
    this.setData({ switch2: detail });
  },
});

自定義選中態(tài)顏色

通過active-color屬性可以自定義菜單標題和選項的選中態(tài)顏色

<van-dropdown-menu active-color="#ee0a24">
  <van-dropdown-item value="{{ value1 }}" options="{{ option1 }}" />
  <van-dropdown-item value="{{ value2 }}" options="{{ option2 }}" />
</van-dropdown-menu>

向上展開

將direction屬性值設(shè)置為up，菜單即可向上展開

<van-dropdown-menu direction="up">
  <van-dropdown-item value="{{ value1 }}" options="{{ option1 }}" />
  <van-dropdown-item value="{{ value2 }}" options="{{ option2 }}" />
</van-dropdown-menu>

禁用菜單

<van-dropdown-menu>
  <van-dropdown-item value="{{ value1 }}" disabled options="{{ option1 }}" />
  <van-dropdown-item value="{{ value2 }}" disabled options="{{ option2 }}" />
</van-dropdown-menu>

API

DropdownMenu Props

DropdownItem Props

DropdownItem Events

DropdownItem Slots

DropdownItem 方法

通過 ref 可以獲取到 DropdownItem 實例并調(diào)用實例方法，詳見 組件實例方法

Option 數(shù)據(jù)結(jié)構(gòu)