# radio

组件类型:UniRadioElement

单选项。在1组radio-group中只能选中1个

# 兼容性

Web 微信小程序 Android iOS HarmonyOS HarmonyOS(Vapor)
4.0 4.41 3.9 4.11 4.61 5.0

# 属性

名称 类型 默认值 兼容性 描述
disabled boolean false
是否禁用
value string -
表单的控件名称,作为键值对的一部分与表单(form组件)一同提交
checked boolean false
当前是否选中,可用来设置默认选中
color string(string.ColorString) "#007AFF"
radio的颜色 (使用foreColor替代)
backgroundColor string(string.ColorString) "#ffffff"
radio默认的背景颜色
borderColor string(string.ColorString) "#d1d1d1"
radio默认的边框颜色
activeBackgroundColor string(string.ColorString) "#007AFF"
radio选中时的背景颜色,优先级大于color属性
activeBorderColor string(string.ColorString) ""
radio选中时的边框颜色
iconColor string(string.ColorString) "#ffffff"
radio的图标颜色 (使用foreColor替代)
foreColor string(string.ColorString) "#ffffff"
radio的图标颜色
icon-class string.ClassString -
单选框图标的类名
radio-class string.ClassString -
单选框的类名
radio-active-class string.ClassString -
单选框选中的类名

# 示例

示例为hello uni-app x alpha分支,与最新HBuilderX Alpha版同步。与最新正式版同步的master分支示例另见

扫码体验(手机浏览器跳转到App直达页)

示例

<script setup lang="uts">
  type ItemType = {
    value: string
    name: string
  }

  type DataType = {
    items: ItemType[];
    current: number;
    eventTest: boolean;
    value: string;
    text: string;
    wrapText: string;
    disabled: boolean;
    checked: boolean;
    color: string;
    checked_boolean: boolean;
    disabled_boolean: boolean;
    color_input: string;
    backgroundColor_input: string;
    borderColor_input: string;
    activeBackgroundColor_input: string;
    activeBorderColor_input: string;
    iconColor_input: string;
  }
  // 使用reactive避免ref数据在自动化测试中无法访问
  const data = reactive({
    items: [
      {
        value: 'CHN',
        name: '中国',
      },
      {
        value: 'USA',
        name: '美国',
      },

      {
        value: 'BRA',
        name: '巴西',
      },
      {
        value: 'JPN',
        name: '日本',
      },
      {
        value: 'ENG',
        name: '英国',
      },
      {
        value: 'FRA',
        name: '法国',
      },
    ],
    current: 0,
    eventTest: false,
    value: '',
    text: '未选中',
    wrapText: 'uni-app x,终极跨平台方案\nuts,大一统语言',
    disabled: true,
    checked: true,
    color: '#007aff',
    // 组件属性 autotest
    checked_boolean: false,
    disabled_boolean: false,
    color_input: "#007AFF",
    backgroundColor_input: "#ffffff",
    borderColor_input: "#d1d1d1",
    activeBackgroundColor_input: "#007AFF",
    activeBorderColor_input: "",
    iconColor_input: "#ffffff"
  } as DataType)

  const radioChange = (e: UniRadioGroupChangeEvent) => {
    // 自动化测试
    console.log('test: radio event detail', e.target?.tagName, e.type)
    if ((e.target?.tagName ?? '') == 'RADIO-GROUP' && e.type == 'change') {
      data.eventTest = true
    }

    const selected = data.items.find((item): boolean => {
      return item.value == e.detail.value
    })
    uni.showToast({
      icon: 'none',
      title: '当前选中:' + selected?.name,
    })
  }

  const testChange = (e: UniRadioGroupChangeEvent) => {
    data.value = e.detail.value
  }

  const radio_click = () => {
    console.log("组件被点击时触发")
  }

  const radio_touchstart = () => {
    console.log("手指触摸动作开始")
  }

  const radio_touchmove = () => {
    console.log("手指触摸后移动")
  }

  const radio_touchcancel = () => {
    console.log("手指触摸动作被打断,如来电提醒,弹窗")
  }

  const radio_touchend = () => {
    console.log("手指触摸动作结束")
  }

  const radio_tap = () => {
    console.log("手指触摸后马上离开")
  }

  const radio_longpress = () => {
    console.log("如果一个组件被绑定了 longpress 事件,那么当用户长按这个组件时,该事件将会被触发。")
  }

  const change_checked_boolean = (checked: boolean) => {
    data.checked_boolean = checked
  }

  const change_disabled_boolean = (checked: boolean) => {
    data.disabled_boolean = checked
  }

  const confirm_color_input = (value: string) => {
    data.color_input = value
  }

  const confirm_backgroundColor_input = (value: string) => {
    data.backgroundColor_input = value
  }

  const confirm_borderColor_input = (value: string) => {
    data.borderColor_input = value
  }

  const confirm_activeBackgroundColor_input = (value: string) => {
    data.activeBackgroundColor_input = value
  }

  const confirm_activeBorderColor_input = (value: string) => {
    data.activeBorderColor_input = value
  }

  const confirm_iconColor_input = (value: string) => {
    data.iconColor_input = value
  }

  defineExpose({
    data
  })
</script>

<template>
  <view class="main">
    <radio :disabled="data.disabled_boolean" :checked="data.checked_boolean" :color="data.color_input"
      :backgroundColor="data.backgroundColor_input" :borderColor="data.borderColor_input"
      :activeBackgroundColor="data.activeBackgroundColor_input" :activeBorderColor="data.activeBorderColor_input"
      :iconColor="data.iconColor_input" @click="radio_click" @touchstart="radio_touchstart" @touchmove="radio_touchmove"
      @touchcancel="radio_touchcancel" @touchend="radio_touchend" @tap="radio_tap" @longpress="radio_longpress">
      <text>uni-app-x</text>
    </radio>
  </view>

  <scroll-view style="flex: 1">
    <view class="content">
      <page-head title="组件属性"></page-head>
      <boolean-data :defaultValue="false" title="<radio/> 当前是否选中" @change="change_checked_boolean"></boolean-data>
      <boolean-data :defaultValue="false" title="是否禁用" @change="change_disabled_boolean"></boolean-data>
    </view>

    <view>
      <page-head title="默认及使用"></page-head>
      <view class="uni-padding-wrap">
        <view class="uni-title uni-common-mt">
          <text class="uni-title-text"> 默认样式 </text>
        </view>
        <radio-group class="uni-flex uni-row radio-group" @change="testChange" style="flex-wrap: wrap">
          <radio id="trigger-change" value="r" :checked="data.checked" :color="data.color" style="margin-right: 15px"
            class="radio r">选中
          </radio>
          <radio value="r1" style="margin-right: 15px" class="radio r1">{{
            data.text
          }}</radio>
          <radio value="r2" :disabled="data.disabled" class="radio r2">禁用</radio>
          <radio value="r3" class="radio r3" style="margin-top: 10px">{{
            data.wrapText
          }}</radio>
        </radio-group>
      </view>

      <view class="uni-padding-wrap">
        <view class="uni-title uni-common-mt">
          <text class="uni-title-text"> 不同颜色和尺寸的radio </text>
        </view>
        <radio-group class="uni-flex uni-row radio-group">
          <!-- #ifndef VUE3-VAPOR -->
          <radio value="r1" :checked="true" color="#FFCC33" style="transform: scale(0.7); margin-right: 15px"
            class="radio">选中
          </radio>
          <radio value="r2" color="#FFCC33" style="transform: scale(0.7)" class="radio">未选中</radio>
          <!-- #endif -->
          <!-- #ifdef VUE3-VAPOR -->
          <radio value="r1" :checked="true" radio-active-class="radio-active" style="transform: scale(0.7); margin-right: 15px"
            class="radio">选中
          </radio>
          <radio value="r2" id="radio-vapor" radio-active-class="radio-active" style="transform: scale(0.7)" class="radio">未选中</radio>
          <!-- #endif -->
        </radio-group>
      </view>


      <view class="uni-padding-wrap">
        <view class="uni-title uni-common-mt">
          <text class="uni-title-text"> 两端对齐样式测试 </text>
        </view>
        <radio-group class="uni-flex uni-row radio-group">
          <radio class="justify-test">justify-content样式测试</radio>
        </radio-group>
      </view>

      <view class="uni-padding-wrap">
        <view class="uni-title uni-common-mt">
          <text class="uni-title-text"> 推荐展示样式 </text>
        </view>
      </view>
      <view class="uni-list uni-common-pl">
        <radio-group @change="radioChange" class="radio-group">
          <radio class="uni-list-cell uni-list-cell-pd radio recommand" v-for="(item, index) in data.items" :key="item.value"
            :class="index < data.items.length - 1 ? 'uni-list-cell-line' : ''" :value="item.value"
            :checked="index === data.current">
            {{ item.name }}
          </radio>
        </radio-group>
      </view>
    </view>

    <!-- #ifndef VUE3-VAPOR -->
    <view>
      <input-data defaultValue="#007AFF" title="radio的颜色" type="text" @confirm="confirm_color_input"></input-data>
      <input-data defaultValue="#ffffff" title="radio默认的背景颜色" type="text"
        @confirm="confirm_backgroundColor_input"></input-data>
      <input-data defaultValue="#d1d1d1" title="radio默认的边框颜色" type="text"
        @confirm="confirm_borderColor_input"></input-data>
      <input-data defaultValue="#007AFF" title="radio选中时的背景颜色,优先级大于color属性" type="text"
        @confirm="confirm_activeBackgroundColor_input"></input-data>
      <input-data defaultValue="" title="radio选中时的边框颜色" type="text"
        @confirm="confirm_activeBorderColor_input"></input-data>
      <input-data defaultValue="#ffffff" title="radio的图标颜色" type="text" @confirm="confirm_iconColor_input"></input-data>
    </view>
    <!-- #endif -->

    <navigator class="uni-common-mb" url="/pages/template/radio-200/radio-200">
      <button class="uni-common-mt">组件性能测试</button>
    </navigator>
  </scroll-view>
</template>

<style>
  .main {
    max-height: 250px;
    padding: 5px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    flex-direction: row;
    justify-content: center;
  }

  .uni-list-cell {
    justify-content: flex-start;
  }

  .justify-test {
    width: 100%;
    justify-content: space-between;
  }

  /* #ifdef VUE3-VAPOR */
  .radio-active {
    background-color: #FFCC33;
    border-color: #FFCC33;
  }
  /* #endif */
</style>

# 参见