Vue使用Element-ui走马灯功能动态改变图片和容器大小
时间: 2024-03-19 09:42:12 浏览: 77
要使用Element-UI的走马灯(Carousel)功能来动态改变图片和容器大小,可以按照以下步骤进行:
1. 引入Element-UI的Carousel组件和样式文件
```javascript
import { Carousel, CarouselItem } from 'element-ui';
import 'element-ui/lib/theme-chalk/carousel.css';
import 'element-ui/lib/theme-chalk/carousel-item.css';
```
2. 在Vue组件中使用Carousel组件,并绑定数据
```html
<template>
<div>
<el-carousel :height="carouselHeight">
<el-carousel-item v-for="(item, index) in items" :key="index">
<img :src="item.src" />
</el-carousel-item>
</el-carousel>
</div>
</template>
<script>
export default {
data() {
return {
items: [
{ src: 'https://picsum.photos/800/400/?image=1' },
{ src: 'https://picsum.photos/800/400/?image=2' },
{ src: 'https://picsum.photos/800/400/?image=3' },
],
carouselHeight: 400,
};
},
};
</script>
```
3. 监听窗口大小变化,动态改变容器高度和图片大小
```html
<template>
<div>
<el-carousel :height="carouselHeight">
<el-carousel-item v-for="(item, index) in items" :key="index">
<img :src="item.src" :style="{ width: imgWidth + 'px', height: imgHeight + 'px' }" />
</el-carousel-item>
</el-carousel>
</div>
</template>
<script>
export default {
data() {
return {
items: [
{ src: 'https://picsum.photos/800/400/?image=1' },
{ src: 'https://picsum.photos/800/400/?image=2' },
{ src: 'https://picsum.photos/800/400/?image=3' },
],
carouselHeight: 400,
imgWidth: 800,
imgHeight: 400,
};
},
mounted() {
this.adjustSize();
window.addEventListener('resize', this.adjustSize);
},
beforeDestroy() {
window.removeEventListener('resize', this.adjustSize);
},
methods: {
adjustSize() {
const containerWidth = this.$el.clientWidth;
const containerHeight = Math.round(containerWidth / 2);
const imgWidth = containerWidth;
const imgHeight = containerHeight;
this.carouselHeight = containerHeight;
this.imgWidth = imgWidth;
this.imgHeight = imgHeight;
},
},
};
</script>
```
以上代码中,adjustSize方法会在组件挂载后和窗口大小变化时被调用,根据当前容器的宽度来计算容器高度和图片大小,并将结果保存到data中。在模板中,使用动态绑定的方式来设置图片的宽度和高度。
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