包在要适应的页面外面，位置大小正常写px 就行
<template>
<div
class="ScreenAdapter"
:style="style"
>
<slot />
</div>
</template>
<script>
export default {
name: '',
//参数注入
props: {
width: {
type: String,
default: '1920'
},
height: {
type: String,
default: '1080'
}
},
data() {
return {
style: {
width: this.width + 'px',
height: this.height + 'px',
transform: 'scale(1) translate(-50%, -50%)'
}
}
},
mounted() {
this.setScale()
window.onresize = this.Debounce(this.setScale, 100)
},
methods: {
Debounce: (fn, t) => {
const delay = t || 500
let timer
return function() {
const args = arguments
if (timer) {
clearTimeout(timer)
}
const context = this
timer = setTimeout(() => {
timer = null
fn.apply(context, args)
}, delay)
}
},
// 获取放大缩小比例
getScale() {
const w = window.innerWidth / this.width
const h = window.innerHeight / this.height
return [w,h]
},
// 设置比例
setScale() {
this.style.transform = 'scale(' + this.getScale() + ') translate(-50%, -50%)'
}
}
}
</script>
<style lang="scss" scoped>
.ScreenAdapter {
transform-origin: 0 0;
position: absolute;
left: 50%;
top: 50%;
transition: 0.3s;
background: red;
}
</style>
