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109 lines
2.2 KiB
Markdown
109 lines
2.2 KiB
Markdown
# Slider 滑块
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### 引入
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在`app.json`或`index.json`中引入组件，详细介绍见[快速上手](#/quickstart#yin-ru-zu-jian)
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```json
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"usingComponents": {
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"van-slider": "@vant/weapp/slider/index"
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}
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```
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## 代码演示
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### 基本用法
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```html
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<van-slider value="50" bind:change="onChange" />
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```
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```js
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Page({
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onChange(event) {
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wx.showToast({
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icon: 'none',
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title: `当前值：${event.detail}`,
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});
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},
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});
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```
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### 指定选择范围
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```html
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<van-slider min="-50" max="50" />
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```
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### 禁用
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```html
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<van-slider value="50" disabled />
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```
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### 指定步长
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```html
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<van-slider value="50" step="10" />
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```
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### 自定义样式
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```html
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<van-slider value="50" bar-height="4px" active-color="#ee0a24" />
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```
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### 自定义按钮
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```html
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<van-slider value="{{ currentValue }}" use-button-slot bind:drag="onDrag">
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<view class="custom-button" slot="button">
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{{ currentValue }}/100
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</view>
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</van-slider>
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```
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```js
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Page({
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data: {
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currentValue: 50,
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},
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onDrag(event) {
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this.setData({
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currentValue: event.detail.value,
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});
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},
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});
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```
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## API
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### Props
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| 参数 | 说明 | 类型 | 默认值 | 版本 |
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| --- | --- | --- | --- | --- |
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| value | 当前进度百分比，取值范围为 0-100 | _number_ | `0` | - |
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| disabled | 是否禁用滑块 | _boolean_ | `false` | - |
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| max | 最大值 | _number_ | `100` | - |
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| min | 最小值 | _number_ | `0` | - |
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| step | 步长 | _number_ | `1` | - |
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| bar-height | 进度条高度，默认单位为 `px` | _string \| number_ | `2px` | - |
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| active-color | 进度条激活态颜色 | _string_ | `#1989fa` | - |
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| inactive-color | 进度条默认颜色 | _string_ | `#e5e5e5` | - |
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### Events
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| 事件名 | 说明 | 参数 |
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| --------------- | ---------------- | ---------------------------- |
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| bind:drag | 拖动进度条时触发 | event.detail.value: 当前进度 |
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| bind:change | 进度值改变后触发 | event.detail: 当前进度 |
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| bind:drag-start | 开始拖动时触发 | - |
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| bind:drag-end | 结束拖动时触发 | - |
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### 外部样式类
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| 类名 | 说明 |
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| ------------ | ------------ |
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| custom-class | 根节点样式类 |
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