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282 lines
11 KiB
Markdown
282 lines
11 KiB
Markdown
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# Swiper 轮播图 <el-tag text style="vertical-align: middle;margin-left:8px;" effect="plain">0.1.22</el-tag>
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用于创建轮播图，它支持水平和垂直方向的滑动，可以自定义样式和指示器位置。
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## 基础用法
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通过设置 `autoplay` 属性控制轮播图是否自动播放，设置 `current` 属性初始化轮播图展示的滑块，监听滑块 `click` 来处理点击事件，而每一页轮播结束后，会触发 `change` 事件。通过
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```html
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<wd-swiper :list="swiperList" autoplay :current="0" @click="handleClick" @change="onChange"></wd-swiper>
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```
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```ts
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const swiperList = ref([
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'https://unpkg.com/wot-design-uni-assets/redpanda.jpg',
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'https://unpkg.com/wot-design-uni-assets/capybara.jpg',
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'https://unpkg.com/wot-design-uni-assets/panda.jpg',
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'https://img.yzcdn.cn/vant/cat.jpeg',
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'https://unpkg.com/wot-design-uni-assets/meng.jpg'
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])
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function handleClick(e) {
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console.log(e)
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}
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function onChange(e) {
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console.log(e)
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}
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```
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## 点条状指示器
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```html
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<wd-swiper :list="swiperList" autoplay :current="1" :indicator="{ type: 'dots-bar' }" @click="handleClick" @change="onChange"></wd-swiper>
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```
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## 数字指示器
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```html
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<wd-swiper
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:list="swiperList"
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autoplay
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:current="2"
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:indicator="{ type: 'fraction' }"
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indicatorPosition="bottom-right"
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@click="handleClick"
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@change="onChange"
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></wd-swiper>
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```
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## 手动切换
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```html
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<wd-swiper
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:list="swiperList"
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:autoplay="false"
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:current="3"
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:indicator="{ showControls: true }"
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:loop="false"
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@click="handleClick"
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@change="onChange"
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></wd-swiper>
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```
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## 卡片样式
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设置 `previousMargin` 和 `nextMargin` 实现卡片轮播的样式。
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```html
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<view class="card-swiper">
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<wd-swiper
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autoplay
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:current="4"
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custom-indicator-class="custom-indicator-class"
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custom-image-class="custom-image"
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custom-next-image-class="custom-image-prev"
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custom-prev-image-class="custom-image-prev"
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:indicator="{ type: 'dots' }"
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:list="swiperList"
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previousMargin="24px"
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nextMargin="24px"
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></wd-swiper>
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</view>
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```
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```scss
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.card-swiper {
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--wot-swiper-radius: 0;
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--wot-swiper-item-padding: 0 24rpx;
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--wot-swiper-nav-dot-color: #e7e7e7;
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--wot-swiper-nav-dot-active-color: #4d80f0;
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padding-bottom: 24rpx;
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:deep(.custom-indicator-class) {
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bottom: -16px;
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}
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:deep(.custom-image) {
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border-radius: 12rpx;
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}
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:deep(.custom-image-prev) {
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height: 168px !important;
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}
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}
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```
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## 同时展示 2 个滑块
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设置 `display-multiple-items` 属性，控制同时展示的滑块数量。
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```html
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<view class="card-swiper">
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<wd-swiper
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autoplay
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:current="4"
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:display-multiple-items="2"
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custom-indicator-class="custom-indicator-class"
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custom-image-class="custom-image"
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custom-next-image-class="custom-image-prev"
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custom-prev-image-class="custom-image-prev"
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:indicator="{ type: 'dots' }"
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:list="swiperList"
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previousMargin="24px"
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nextMargin="24px"
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></wd-swiper>
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</view>
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```
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```scss
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.card-swiper {
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--wot-swiper-radius: 0;
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--wot-swiper-item-padding: 0 24rpx;
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--wot-swiper-nav-dot-color: #e7e7e7;
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--wot-swiper-nav-dot-active-color: #4d80f0;
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padding-bottom: 24rpx;
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:deep(.custom-indicator-class) {
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bottom: -16px;
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}
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:deep(.custom-image) {
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border-radius: 12rpx;
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}
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:deep(.custom-image-prev) {
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height: 168px !important;
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}
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}
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```
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## 垂直方向
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`direction` 设置为 `vertical` 后滑块会纵向排列。
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```html
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<wd-swiper
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:list="swiperList"
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direction="vertical"
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indicatorPosition="right"
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autoplay
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:current="1"
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:indicator="{ type: 'dots-bar' }"
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@click="handleClick"
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@change="onChange"
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></wd-swiper>
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```
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## 自定义指示器
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通过 `indicator` 插槽可以自定义指示器的样式。
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```html
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<wd-swiper :list="swiperList" direction="vertical" indicatorPosition="right" autoplay :current="1" @click="handleClick" @change="onChange">
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<template #indicator="{ current, total }">
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<view class="custom-indicator" style="position: absolute; bottom: 24rpx; right: 24rpx">{{ current + 1 }}/{{ total }}</view>
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</template>
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</wd-swiper>
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```
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```scss
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.custom-indicator {
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padding: 0 12rpx;
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height: 48rpx;
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line-height: 48rpx;
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border-radius: 45%;
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background: rgba(0, 0, 0, 0.6);
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color: #ffffff;
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font-size: 24rpx;
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}
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```
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## 属性控制切换
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```html
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<wd-swiper :loop="isLoop" :autoplay="false" :list="swiperList" v-model:current="current" />
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<wd-gap />
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<wd-cell-group>
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<wd-cell title="loop">
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<wd-switch v-model="isLoop" size="24px" />
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</wd-cell>
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<wd-cell title="current" :value="current.toString()" />
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</wd-cell-group>
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<view style="display: flex; justify-content: space-between">
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<wd-button @click="current--">prev</wd-button>
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<wd-button type="success" @click="current++">next</wd-button>
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</view>
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```
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```javascript
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const current = ref<number>(0)
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const isLoop = ref(false)
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```
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## Attributes
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| 参数 | 说明 | 类型 | 可选值 | 默认值 | 最低版本 |
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| -------------------- | ------------------------------------------------------ | ------------------------- | ---------- | ---------- | -------- |
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| autoplay | 是否自动播放 | `boolean` | - | true | 0.1.22 |
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| v-model:current | 控制当前轮播在哪一项（下标） | `number` | - | 0 | 0.1.22 |
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| direction | 轮播滑动方向 | `DirectionType` | `horizontal, vertical` | horizontal | 0.1.22 |
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| displayMultipleItems | 同时显示的滑块数量 | `number` | - | 1 | 0.1.22 |
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| duration | 滑动动画时长 | `number` | - | 300 | 0.1.22 |
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| easingFunction | 切换缓动动画类型（微信小程序、快手小程序、京东小程序） | `EasingType` | - | default | 0.1.22 |
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| height | 轮播的高度 | `string \| number` | - | 192 | 0.1.22 |
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| interval | 轮播间隔时间 | `number` | - | 5000 | 0.1.22 |
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| list | 图片列表 | `string[] \| SwiperList[]` | - | - | 0.1.22 |
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| loop | 是否循环播放 | `boolean` | - | true | 0.1.22 |
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| nextMargin | 后边距 | `string \| number` | - | 0 | 0.1.22 |
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| indicatorPosition | 指示器展示位置 | `IndicatorPositionType` | `left, top-left, top, top-right, bottom-left, bottom, bottom-right, right` | bottom | 0.1.22 |
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| previousMargin | 前边距 | `string \| number` | - | 0 | 0.1.22 |
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| snapToEdge | 边距是否应用到第一个、最后一个元素 | `boolean` | - | false | 0.1.22 |
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| indicator | 指示器全部配置 | `SwiperIndicatorProps \| boolean` | - | true | 0.1.22 |
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| imageMode | 图片裁剪、缩放的模式 | `string` | 参考官方文档[mode](https://uniapp.dcloud.net.cn/component/image.html#mode-%E6%9C%89%E6%95%88%E5%80%BC) | `aspectFill` | 0.1.55 |
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| customStyle | 外部自定义样式 | `string` | - | '' | 0.1.22 |
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### DirectionType
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轮播滑动方向，可选值为 `'horizontal'` 和 `'vertical'`。
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### EasingType
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切换缓动动画类型，可选值为 `'default'`、`'linear'`、`'easeInCubic'`、`'easeOutCubic'` 和 `'easeInOutCubic'`。
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### IndicatorPositionType
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页码信息展示位置，可选值为 `'left'`、`'top-left'`、`'top'`、`'top-right'`、`'bottom-left'`、`'bottom'`、`'bottom-right'` 和 `'right'`。
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### SwiperList
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轮播图项的列表配置，包括 `value` 属性，支持扩展属性。
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### SwiperIndicatorProps
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| 参数 | 说明 | 类型 | 可选值 | 默认值 | 最低版本 |
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| ------------------- | -------------------------- | ---------------------- | ------------------------------------------------------------------------ | ---------- | -------- |
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| current | 当前轮播在哪一项（下标） | Number | - | 0 | 0.1.22 |
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| direction | 轮播滑动方向 | DirectionType | `horizontal, vertical` | horizontal | 0.1.22 |
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| min-show-num | 小于这个数字不会显示导航器 | Number | - | 2 | 0.1.22 |
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| pagination-position | 页码信息展示位置 | IndicatorPositionType | `left, top-left, top, top-right, bottom-left, bottom, bottom-right, right` | bottom | 0.1.22 |
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| show-controls | 是否显示控制按钮 | Boolean | - | false | 0.1.22 |
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| total | 总共的项数 | Number | - | 0 | 0.1.22 |
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| type | 导航器类型 | SwiperIndicatorType | `dots, dots-bar, fraction ` | dots | 0.1.22 |
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| autoplay | 是否自动播放 | boolean | - | true | 0.1.22 |
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## Events
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| 事件名称 | 说明 | 参数 | 最低版本 |
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| -------- | ---------------- | ----------------------------------------------------------- | -------- |
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| click | 点击轮播项时触发 | `(index: number)` | 0.1.22 |
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| change | 轮播切换时触发 | `(current: number, source: 'autoplay' \| 'touch' \| 'nav') ` | 0.1.22 |
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## Slot
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| name | 说明 | 参数 | 最低版本 |
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| --------- | ------------ | ------------------------------------ | -------- |
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| indicator | 自定义指示器 | `{ current: number, total: number }` | 0.1.22 |
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## 外部样式类
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| 类名 | 说明 | 最低版本 |
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| -------------------- | -------------------- | -------- |
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| customClass | 外部自定义类名 | 0.1.22 |
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| customIndicatorClass | 自定义指示器类名 | 0.1.22 |
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| customImageClass | 自定义图片类名 | 0.1.22 |
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| customPrevImageClass | 自定义上一个图片类名 | 0.1.22 |
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| customNextImageClass | 自定义下一个图片类名 | 0.1.22 |
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