# color

color 属性设置元素的文本及文本装饰(text-decoration)的前景色颜色值。

# uni-app x 兼容性

Web Android iOS HarmonyOS HarmonyOS(Vapor)
4.0 3.9 4.11 4.61 5.0

# 语法

color: <color>;

# 值限制

  • color

# color 的属性值

名称 兼容性 描述
currentcolor
将颜色设置为元素的 color 属性值。但是,如果设置为 color 的值,currentcolor 将被视为 inherit。

# 默认值

平台 默认值
uvue-app #000000
uvue-web canvastext

注意:W3C 默认值为:canvastext

# 适用组件

# 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

<template>
  <!-- #ifdef APP -->
  <scroll-view style="flex: 1">
  <!-- #endif -->
    <view style="flex-grow: 1;">
      <text class="uni-tips">说明:左边是正常版本,右边是拍平版本</text>
      <view class="demo-box">
        <view class="box">
          <text class="common" style="color: rgb(0, 0, 255);">color: rgb(0, 0, 255)</text>
          <text class="common" style="color: rgba(0, 0, 255, 0.5);">color: rgba(0, 0, 255, 0.5)</text>
          <text class="common" style="color: #0000ff;">color: #0000ff</text>
          <text class="common" style="color: #00f;">color: #00f</text>
          <text class="common" style="color: blue;">color: blue</text>
        </view>
        <view class="box">
          <text class="common" style="color: rgb(0, 0, 255);" flatten>color: rgb(0, 0, 255)</text>
          <text class="common" style="color: rgba(0, 0, 255, 0.5);" flatten>color: rgba(0, 0, 255, 0.5)</text>
          <text class="common" style="color: #0000ff;" flatten>color: #0000ff</text>
          <text class="common" style="color: #00f;" flatten>color: #00f</text>
          <text class="common" style="color: blue;" flatten>color: blue</text>
        </view>
      </view>

      <view class="uni-common-mt">
        <text class="uni-title-text">setProperty 设置与 getPropertyValue 获取 color 测试</text>
      </view>

      <view class="common-box">
        <!-- 普通版本 -->
        <view class="uni-common-mt">
          <text class="uni-title-text">color</text>
          <text class="uni-info">设置值: {{color}}</text>
          <text class="uni-info">获取值: {{colorActual}}</text>
          <view class="test-box">
            <text ref="textRef" class="common test-text" :style="{ color: color }">当前 color: {{color}}</text>
          </view>
        </view>

        <!-- 拍平版本 -->
        <view class="uni-common-mt">
          <text class="uni-title-text">测试拍平</text>
          <text class="uni-info">设置值: {{color}}</text>
          <text class="uni-info">获取值: {{colorActualFlat}}</text>
          <view class="test-box">
            <text ref="textRefFlat" class="common test-text-flatten" :style="{ color: color }" flatten>当前 color: {{color}}</text>
          </view>
        </view>
      </view>

      <view class="uni-common-mt uni-common-mb">
        <text class="uni-tips">第一个枚举值,'' (空字符串) - 空值情况</text>
        <enum-data :items="colorEnum" title="color 枚举值" @change="radioChangeColor" :compact="true"></enum-data>
        <input-data :defaultValue="color" title="color 自定义值" type="text" @confirm="inputChangeColor"></input-data>
      </view>
    </view>
  <!-- #ifdef APP -->
  </scroll-view>
  <!-- #endif -->
</template>

<script setup lang="uts">
  import { ItemType } from '@/components/enum-data/enum-data-types'

  const colorEnum: ItemType[] = [
    { value: 0, name: '' },
    { value: 1, name: 'green' },
    { value: 2, name: '#942192' },
    { value: 3, name: '#000' },
    { value: 4, name: '#0000ff' },
    { value: 5, name: 'rgb(0, 255, 0)' },
    { value: 6, name: 'rgba(0, 255, 0, 0.5)' }
  ]

  const color = ref('cyan')
  const colorActual = ref('')
  const colorActualFlat = ref('')
  const textRef = ref(null as UniTextElement | null)
  const textRefFlat = ref(null as UniTextElement | null)

  const getPropertyValues = () => {
    colorActual.value = textRef.value?.style.getPropertyValue('color') ?? ''
    colorActualFlat.value = textRefFlat.value?.style.getPropertyValue('color') ?? ''
  }

  const changeColor = (value: string) => {
    color.value = value
    textRef.value?.style.setProperty('color', value)
    textRefFlat.value?.style.setProperty('color', value)
    // 使用 nextTick 确保样式已应用后再获取值
    nextTick(() => {
      getPropertyValues()
    })
  }

  const radioChangeColor = (index: number) => {
    const selectedItem = colorEnum.find((item): boolean => item.value === index)
    if (selectedItem != null) {
      changeColor(selectedItem.name)
    }
  }

  const inputChangeColor = (value: string) => {
    changeColor(value)
  }

  onReady(() => {
    getPropertyValues()
  })

  defineExpose({
    radioChangeColor
  })
</script>

<style>
  .common {
    font-size: 16px;
  }
  .demo-box {
    flex-direction: row;
    margin-top: 10px;
    justify-content: space-around;
  }
  .box{
    flex:1;
    height: 130px;
    background-color: gray;
    justify-content: center;
    align-items: center;
  }

  .common-box{
    flex-direction: row;
    justify-content: space-around;
  }

  .test-box {
    width: 180px;
    height: 80px;
    background-color: gray;
    justify-content: center;
    align-items: center;
  }

</style>

# App平台

App端 color 样式不支持继承,

# 浏览器或webview平台

所有元素都支持设置 color 样式,并支持继承。 同时会设置 currentcolor 值,currentcolor 可以用作其他属性的间接值,且为其他颜色属性(如 border-color)的默认值。

# 参见