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小莫唐尼
408 lines
7.2 KiB
Markdown
408 lines
7.2 KiB
Markdown
# view 组件示例
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## 官方文档
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参考官方文档：https://uniapp.dcloud.net.cn/component/view.html
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## 概述
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`view` 是视图容器组件，类似于 HTML 中的 `div`，用于包裹各种元素内容。
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## 基础用法
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### 基本视图容器
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```vue
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<template>
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<view class="container">
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<text>这是内容</text>
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</view>
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</template>
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<style>
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.container {
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padding: 20px;
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background-color: #f5f5f5;
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}
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</style>
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```
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## 完整示例
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### 示例 1: Flex 布局 - 横向布局
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```vue
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<template>
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<view class="uni-padding-wrap uni-common-mt">
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<view class="uni-title uni-common-mt">
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flex-direction: row
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<text>\n横向布局</text>
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</view>
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<view class="uni-flex uni-row">
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<view class="flex-item uni-bg-red">A</view>
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<view class="flex-item uni-bg-green">B</view>
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<view class="flex-item uni-bg-blue">C</view>
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</view>
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</view>
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</template>
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<style>
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.uni-flex {
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display: flex;
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}
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.uni-row {
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flex-direction: row;
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}
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.flex-item {
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flex: 1;
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height: 100px;
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text-align: center;
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line-height: 100px;
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}
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.uni-bg-red {
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background-color: #ff3b30;
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}
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.uni-bg-green {
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background-color: #4cd964;
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}
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.uni-bg-blue {
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background-color: #007aff;
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}
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</style>
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```
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### 示例 2: Flex 布局 - 纵向布局
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```vue
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<template>
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<view class="uni-padding-wrap uni-common-mt">
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<view class="uni-title uni-common-mt">
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flex-direction: column
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<text>\n纵向布局</text>
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</view>
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<view class="uni-flex uni-column">
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<view class="flex-item flex-item-V uni-bg-red">A</view>
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<view class="flex-item flex-item-V uni-bg-green">B</view>
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<view class="flex-item flex-item-V uni-bg-blue">C</view>
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</view>
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</view>
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</template>
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<style>
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.uni-flex {
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display: flex;
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}
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.uni-column {
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flex-direction: column;
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}
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.flex-item-V {
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width: 100%;
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height: 100px;
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text-align: center;
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line-height: 100px;
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}
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</style>
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```
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### 示例 3: 点击态效果
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```vue
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<template>
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<view class="container">
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<view
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class="clickable-item"
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hover-class="hover"
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hover-start-time="50"
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hover-stay-time="400"
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@click="handleClick"
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>
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点击我
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</view>
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</view>
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</template>
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<script>
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export default {
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methods: {
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handleClick() {
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uni.showToast({
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title: '被点击了',
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icon: 'success'
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})
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}
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}
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}
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</script>
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<style>
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.clickable-item {
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padding: 20px;
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background-color: #007aff;
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color: white;
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text-align: center;
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border-radius: 8px;
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}
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.hover {
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background-color: #0051d5;
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opacity: 0.8;
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}
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</style>
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```
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### 示例 4: 阻止点击态冒泡
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```vue
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<template>
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<view class="container" hover-class="container-hover">
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<view
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class="inner-item"
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hover-class="inner-hover"
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hover-stop-propagation="true"
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@click="handleInnerClick"
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>
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内部元素（阻止冒泡）
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</view>
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</view>
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</template>
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<script>
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export default {
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methods: {
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handleInnerClick() {
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console.log('内部元素被点击')
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}
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}
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}
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</script>
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<style>
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.container {
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padding: 40px;
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background-color: #f5f5f5;
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}
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.container-hover {
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background-color: #e0e0e0;
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}
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.inner-item {
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padding: 20px;
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background-color: #007aff;
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color: white;
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text-align: center;
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border-radius: 8px;
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}
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.inner-hover {
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background-color: #0051d5;
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}
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</style>
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```
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### 示例 5: 嵌套视图
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```vue
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<template>
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<view class="page">
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<view class="header">
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<text class="title">页面标题</text>
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</view>
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<view class="content">
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<view class="section">
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<text class="section-title">第一部分</text>
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<view class="section-content">
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<text>这是第一部分的内容</text>
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</view>
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</view>
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<view class="section">
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<text class="section-title">第二部分</text>
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<view class="section-content">
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<text>这是第二部分的内容</text>
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</view>
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</view>
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</view>
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<view class="footer">
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<text>页脚</text>
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</view>
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</view>
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</template>
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<style>
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.page {
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min-height: 100vh;
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display: flex;
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flex-direction: column;
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}
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.header {
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padding: 20px;
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background-color: #007aff;
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color: white;
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}
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.title {
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font-size: 18px;
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font-weight: bold;
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}
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.content {
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flex: 1;
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padding: 20px;
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}
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.section {
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margin-bottom: 20px;
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padding: 15px;
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background-color: #f5f5f5;
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border-radius: 8px;
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}
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.section-title {
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font-size: 16px;
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font-weight: bold;
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margin-bottom: 10px;
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}
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.section-content {
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padding: 10px;
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background-color: white;
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border-radius: 4px;
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}
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.footer {
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padding: 20px;
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background-color: #f5f5f5;
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text-align: center;
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}
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</style>
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```
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### 示例 6: 条件渲染
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```vue
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<template>
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<view class="container">
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<view v-if="showContent" class="content">
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<text>这是显示的内容</text>
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</view>
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<view v-else class="empty">
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<text>暂无内容</text>
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</view>
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<button @click="toggleContent">切换显示</button>
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</view>
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</template>
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<script>
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export default {
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data() {
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return {
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showContent: true
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}
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},
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methods: {
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toggleContent() {
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this.showContent = !this.showContent
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}
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}
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}
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</script>
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<style>
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.container {
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padding: 20px;
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}
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.content {
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padding: 20px;
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background-color: #4cd964;
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color: white;
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border-radius: 8px;
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margin-bottom: 20px;
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}
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.empty {
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padding: 20px;
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background-color: #f5f5f5;
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color: #999;
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border-radius: 8px;
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margin-bottom: 20px;
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text-align: center;
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}
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</style>
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```
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### 示例 7: 列表渲染
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```vue
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<template>
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<view class="container">
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<view
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v-for="(item, index) in list"
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:key="index"
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class="list-item"
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@click="handleItemClick(item)"
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>
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<text>{{ item.name }}</text>
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</view>
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</view>
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</template>
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<script>
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export default {
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data() {
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return {
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list: [
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{ id: 1, name: '项目 1' },
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{ id: 2, name: '项目 2' },
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{ id: 3, name: '项目 3' }
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]
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}
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},
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methods: {
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handleItemClick(item) {
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uni.showToast({
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title: `点击了 ${item.name}`,
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icon: 'none'
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})
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}
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}
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}
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</script>
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<style>
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.container {
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padding: 20px;
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}
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.list-item {
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padding: 15px;
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margin-bottom: 10px;
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background-color: #f5f5f5;
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border-radius: 8px;
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}
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</style>
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```
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## 属性说明
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| 属性名 | 类型 | 默认值 | 说明 |
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|--------|------|--------|------|
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| hover-class | String | none | 指定按下去的样式类 |
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| hover-stop-propagation | Boolean | false | 指定是否阻止本节点的祖先节点出现点击态 |
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| hover-start-time | Number | 50 | 按住后多久出现点击态，单位毫秒 |
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| hover-stay-time | Number | 400 | 手指松开后点击态保留时间，单位毫秒 |
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## 平台兼容性
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| 平台 | 支持情况 |
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|------|---------|
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| H5 | ✅ |
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| 微信小程序 | ✅ |
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| 支付宝小程序 | ✅ |
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| 百度小程序 | ✅ |
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| 字节跳动小程序 | ✅ |
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| QQ 小程序 | ✅ |
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| 快手小程序 | ✅ |
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| App | ✅ |
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| 快应用 | ✅ |
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## 注意事项
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1. `view` 组件本身不显示任何可视化元素，主要用于包裹其他组件
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2. 可以使用 CSS 样式控制 `view` 的显示效果
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3. 支持 Flex 布局，常用于页面布局
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4. `hover-class` 属性用于设置点击态效果
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5. `hover-stop-propagation` 在某些平台可能不支持
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## 参考资源
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- **官方文档**: https://uniapp.dcloud.net.cn/component/view.html
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- **Flex 布局**: https://uniapp.dcloud.net.cn/tutorial/css-flex.html
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