一、架构设计

基于动态组件工厂的响应式布局引擎，根据设备能力和内容特征自动选择最优组件，布局切换零延迟

二、核心实现

// components/ComponentFactory.js
import { shallowRef, defineAsyncComponent } from 'vue'

const componentRegistry = new Map()
const activeComponents = shallowRef(new Set())

export function registerComponent(name, loader) {
    componentRegistry.set(name, {
        loader: () => loader(),
        instances: 0
    })
}

export function useComponent(name) {
    if (!componentRegistry.has(name)) {
        throw new Error(`Component ${name} not registered`)
    }

    const component = componentRegistry.get(name)
    component.instances++
    activeComponents.value.add(name)

    return defineAsyncComponent(component.loader)
}

export function unregisterComponent(name) {
    if (componentRegistry.has(name)) {
        componentRegistry.delete(name)
        activeComponents.value.delete(name)
    }
}

// layouts/AdaptiveStrategy.js
import { ref, watchEffect } from 'vue'

export function useLayoutStrategy() {
    const currentLayout = ref('desktop')
    const componentVariants = ref({})

    function detectLayout() {
        const width = window.innerWidth
        if (width < 768) return 'mobile'
        if (width  {
        currentLayout.value = detectLayout()
        componentVariants.value = {}
    })

    return {
        currentLayout,
        getComponentVariant: (baseName) => {
            if (!componentVariants.value[baseName]) {
                componentVariants.value[baseName] = selectComponentVariant(baseName)
            }
            return componentVariants.value[baseName]
        }
    }
}

三、高级特性

// utils/LazyLoader.js
export function createLazyLoader() {
    const loadedComponents = new Set()

    return {
        load: async (name) => {
            if (loadedComponents.has(name)) return
            
            try {
                const module = await import(`../components/${name}.vue`)
                registerComponent(name, () => module.default)
                loadedComponents.add(name)
            } catch (e) {
                console.error(`Failed to load component ${name}:`, e)
            }
        },
        preload: (names) => {
            names.forEach(name => this.load(name))
        }
    }
}

// transitions/LayoutTransition.js
import { h, Transition } from 'vue'

export const LayoutTransition = {
    name: 'LayoutTransition',
    setup(_, { slots }) {
        return () => h(Transition, {
            name: 'layout',
            mode: 'out-in',
            onBeforeEnter(el) {
                el.style.opacity = 0
                el.style.transform = 'translateY(20px)'
            },
            onEnter(el, done) {
                const animation = el.animate([
                    { opacity: 0, transform: 'translateY(20px)' },
                    { opacity: 1, transform: 'translateY(0)' }
                ], { duration: 300 })
                animation.finished.then(done)
            },
            onLeave(el, done) {
                const animation = el.animate([
                    { opacity: 1, transform: 'translateY(0)' },
                    { opacity: 0, transform: 'translateY(-20px)' }
                ], { duration: 200 })
                animation.finished.then(done)
            }
        }, slots)
    }
}

四、完整案例

<script setup>
import { useComponent } from './components/ComponentFactory'
import { useLayoutStrategy } from './layouts/AdaptiveStrategy'
import LayoutTransition from './transitions/LayoutTransition'

const { currentLayout, getComponentVariant } = useLayoutStrategy()

// 动态获取组件
const componentName = computed(() => getComponentVariant('ProductCard'))
const DynamicComponent = useComponent(componentName)
</script>

<template>
    <LayoutTransition>
        <component 
            :is="DynamicComponent" 
            :key="currentLayout"
            v-bind="$attrs"
        />
    </LayoutTransition>
</template>