vue3 实现轮播图 只有两个值时 中间大右边小,有三个值时中间大左右两边小,向左滑动右边的值换到中间,本来中间的值此时在左边,向右滑动左边的值换到中间,此时中间的值在右边,左右两边样式和中间的样式不一样 实现此效果
时间: 2024-11-25 20:11:29 浏览: 6
vue实现div可拖动位置也可改变盒子大小的原理
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在Vue3中实现这种轮播图效果,你可以使用`vue-responsive`这样的响应式库,配合自定义的计算属性和CSS动画。这里是一个简单的步骤描述:
1. 安装依赖:
```bash
npm install vue-responsive
```
2. 在组件中引入响应式API:
```javascript
import { useResponsive } from 'vue-responsive';
```
3. 创建一个数据数组表示轮播图的状态,包含当前显示图片索引、宽度比例等信息:
```javascript
data() {
return {
slideIndex: 0,
slidesWidths: [null, null], // 两个值的情况
threeSlidesWidths: [null, null, null], // 三个值的情况
...,
};
},
computed: {
activeSlideWidth() {
if (this.slidesWidths.length === 2) {
return this.slidesWidths[this.slideIndex];
} else if (this.threeSlidesWidths.length === 3) {
return this.threeSlidesWidths[this.slideIndex];
}
},
...useResponsive({
xs: { slidesWidths: this.slidesWidths, threeSlidesWidths: this.threeSlidesWidths },
sm: { slidesWidths: this.slidesWidths, threeSlidesWidths: this.threeSlidesWidths },
md: { slidesWidths: this.slidesWidths, threeSlidesWidths: this.threeSlidesWidths },
lg: { slidesWidths: this.slidesWidths, threeSlidesWidths: this.threeSlidesWidths },
xl: { slidesWidths: this.slidesWidths, threeSlidesWidths: this.threeSlidesWidths },
}),
},
methods: {
handleSwipe(direction) {
if (direction === 'left') {
this.slideIndex = (this.slideIndex + 1) % this.slidesLength;
} else if (direction === 'right') {
this.slideIndex = (this.slideIndex - 1 + this.slidesLength) % this.slidesLength;
}
// 更新样式,比如改变轮播图容器的宽度
this.$emit('update:active-slide-width', this.activeSlideWidth);
},
}
```
4. 根据屏幕尺寸动态设置轮播图宽度,并监听用户滑动事件:
```html
<div class="carousel" :style="{ width: activeSlideWidth }">
<transition-group tag="div" name="slide" @swipe="handleSwipe">
<!-- 你的轮播图项在这里 -->
</transition-group>
</div>
<style scoped>
.carousel {
position: relative;
overflow-x: auto;
}
.slide-enter-active,
.slide-leave-active {
transition: transform 0.5s ease-in-out;
}
.slide-enter,
.slide-leave-to {
transform: translateX(-100%);
}
</style>
```
5. 当滑动到边界时,切换图片并调整相邻元素的位置。
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