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234 lines
4.5 KiB
Markdown
234 lines
4.5 KiB
Markdown
# button 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/button.html
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## 概述
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`button` 是按钮组件,用于触发操作。
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## 基础用法
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```vue
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<template>
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<button @click="handleClick">点击按钮</button>
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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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console.log('按钮被点击')
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}
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}
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}
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</script>
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```
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## 完整示例
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### 示例 1: 按钮类型
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```vue
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<template>
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<view class="container">
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<button type="default">默认按钮</button>
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<button type="primary">主要按钮</button>
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<button type="warn">警告按钮</button>
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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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}
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button {
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margin-bottom: 20px;
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}
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</style>
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```
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### 示例 2: 按钮大小
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```vue
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<template>
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<view class="container">
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<button size="mini">小按钮</button>
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<button size="default">默认按钮</button>
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</view>
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</template>
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```
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### 示例 3: 镂空按钮
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```vue
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<template>
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<view class="container">
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<button type="primary" plain>镂空按钮</button>
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<button type="warn" plain>镂空警告按钮</button>
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</view>
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</template>
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```
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### 示例 4: 禁用按钮
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```vue
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<template>
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<view class="container">
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<button disabled>禁用按钮</button>
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<button :disabled="isDisabled" @click="handleClick">
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{{ isDisabled ? '已禁用' : '可点击' }}
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</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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isDisabled: false
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}
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},
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methods: {
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handleClick() {
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this.isDisabled = true
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setTimeout(() => {
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this.isDisabled = false
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}, 2000)
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}
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}
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}
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</script>
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```
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### 示例 5: 加载状态
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```vue
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<template>
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<view class="container">
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<button :loading="isLoading" @click="handleSubmit">
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提交
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</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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isLoading: false
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}
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},
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methods: {
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async handleSubmit() {
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this.isLoading = true
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try {
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// 模拟请求
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await new Promise(resolve => setTimeout(resolve, 2000))
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uni.showToast({
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title: '提交成功',
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icon: 'success'
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})
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} finally {
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this.isLoading = false
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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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```
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### 示例 6: 表单提交
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```vue
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<template>
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<form @submit="handleSubmit">
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<input name="username" placeholder="用户名" />
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<input name="password" type="password" placeholder="密码" />
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<button form-type="submit">提交</button>
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<button form-type="reset">重置</button>
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</form>
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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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handleSubmit(e) {
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console.log('表单数据', e.detail.value)
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}
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}
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}
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</script>
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```
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### 示例 7: 开放能力(微信小程序)
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```vue
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<template>
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<view class="container">
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<!-- 获取用户信息 -->
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<button open-type="getUserInfo" @getuserinfo="getUserInfo">
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获取用户信息
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</button>
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<!-- 打开客服会话 -->
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<button open-type="contact">联系客服</button>
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<!-- 分享 -->
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<button open-type="share">分享</button>
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<!-- 打开设置 -->
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<button open-type="openSetting">打开设置</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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methods: {
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getUserInfo(e) {
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console.log('用户信息', e.detail.userInfo)
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}
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}
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}
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</script>
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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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| size | String | default | 按钮的大小,可选值:default、mini |
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| type | String | default | 按钮的样式类型,可选值:primary、default、warn |
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| plain | Boolean | false | 按钮是否镂空,背景色透明 |
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| disabled | Boolean | false | 是否禁用 |
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| loading | Boolean | false | 名称前是否带 loading 图标 |
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| form-type | String | - | 用于 form 组件,可选值:submit、reset |
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| open-type | String | - | 开放能力,如:getUserInfo、contact、share 等 |
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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. `open-type` 在不同平台支持的能力不同
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2. 按钮的样式可以通过 CSS 自定义
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3. `loading` 图标在不同平台显示可能不同
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4. 建议使用 `@click` 事件处理点击,而不是依赖 `open-type`
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## 参考资源
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- **官方文档**: https://uniapp.dcloud.net.cn/component/button.html
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- **表单组件**: https://uniapp.dcloud.net.cn/component/form.html
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