简体中文
text-align 属性设置元素中文本内容的水平对齐方式。
| Web | Android | iOS | HarmonyOS | HarmonyOS(Vapor) |
|---|---|---|---|---|
| 4.0 | 3.9 | 4.11 | 4.61 | 5.0 |
text-align: start | end | left | right | center | justify | match-parent;
| 名称 | 兼容性 | 描述 |
|---|---|---|
| left | 行内内容向左侧边对齐。 | |
| center | 行内内容居中。 | |
| right | 行内内容向右侧边对齐。 |
| 平台 | 默认值 |
|---|---|
| uvue-app | left |
| uvue-web | left |
注意:W3C 默认值为:start
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
示例
<template>
<view style="flex-grow: 1;">
<view class="box">
<text class="common" style="text-align: left;">text-align: left</text>
<text class="common" style="text-align: center;">text-align: center</text>
<text class="common2" style="text-align: center;">text-align: center</text>
<text class="common" style="text-align: right;">text-align: right</text>
</view>
<text class="uni-title-text">拍平版本</text>
<view class="box">
<text class="common" style="text-align: left;" flatten>text-align: left</text>
<text class="common" style="text-align: center;" flatten>text-align: center</text>
<text class="common2" style="text-align: center;" flatten>text-align: center</text>
<text class="common" style="text-align: right;" flatten>text-align: right</text>
</view>
<view class="uni-common-mt">
<text class="uni-title-text">setProperty 设置与 getPropertyValue 获取 text-align </text>
</view>
<view class="common-box">
<!-- 普通版本 -->
<view class="uni-common-mt">
<text class="uni-title-text">text-align</text>
<text class="uni-info">设置值: {{textAlign}}</text>
<text class="uni-info">获取值: {{textAlignActual}}</text>
<view class="test-box">
<text ref="textRef" class="common-text test-text" :style="{ textAlign: textAlign }">当前 text-align: {{textAlign}}</text>
</view>
</view>
<!-- 拍平版本 -->
<view class="uni-common-mt">
<text class="uni-title-text">拍平</text>
<text class="uni-info">设置值: {{textAlign}}</text>
<text class="uni-info">获取值: {{textAlignActualFlat}}</text>
<view class="test-box">
<text ref="textRefFlat" class="common-text test-text-flatten" :style="{ textAlign: textAlign }" flatten>当前 text-align: {{textAlign}}</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="textAlignEnum" title="text-align 枚举值" @change="radioChangeTextAlign" :compact="true"></enum-data>
<input-data :defaultValue="textAlign" title="text-align 自定义值" type="text" @confirm="inputChangeTextAlign"></input-data>
</view>
</view>
</template>
<script setup lang="uts">
import { ItemType } from '@/components/enum-data/enum-data-types'
const textAlignEnum: ItemType[] = [
{ value: 0, name: '' },
{ value: 1, name: 'left' },
{ value: 2, name: 'center' },
{ value: 3, name: 'right' }
]
const textAlign = ref('left')
const textAlignActual = ref('')
const textAlignActualFlat = ref('')
const textRef = ref(null as UniTextElement | null)
const textRefFlat = ref(null as UniTextElement | null)
const getPropertyValues = () => {
textAlignActual.value = textRef.value?.style.getPropertyValue('text-align') ?? ''
textAlignActualFlat.value = textRefFlat.value?.style.getPropertyValue('text-align') ?? ''
}
const changeTextAlign = (value: string) => {
textAlign.value = value
textRef.value?.style.setProperty('text-align', value)
textRefFlat.value?.style.setProperty('text-align', value)
// 使用 nextTick 确保样式已应用后再获取值
nextTick(() => {
getPropertyValues()
})
}
const radioChangeTextAlign = (index: number) => {
const selectedItem = textAlignEnum.find((item): boolean => item.value === index)
if (selectedItem != null) {
changeTextAlign(selectedItem.name)
}
}
const inputChangeTextAlign = (value: string) => {
changeTextAlign(value)
}
onReady(() => {
getPropertyValues()
})
defineExpose({
radioChangeTextAlign
})
</script>
<style>
.common {
width: 250px;
font-size: 20px;
}
.common2 {
min-width: 250px;
font-size: 20px;
}
.common-text{
width: 100px;
font-size: 14px;
}
.box{
height: 150px;
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>