VueUse中文文档useImage
在浏览器中响应式加载图像，你可以等待结果显示或显示一个回退方案
Reactive load an image in the browser, you can wait the result to display it or show a fallback.
例子
Loading...
Usage
html
<script setup>
import { useImage } from '@vueuse/core'
const avatarUrl = 'https://place.dog/300/200'
const { isLoading } = useImage({ src: avatarUrl })
</script>
<template>
<span v-if="isLoading">Loading</span>
<img v-else :src="avatarUrl">
</template>
<script setup>
import { useImage } from '@vueuse/core'
const avatarUrl = 'https://place.dog/300/200'
const { isLoading } = useImage({ src: avatarUrl })
</script>
<template>
<span v-if="isLoading">Loading</span>
<img v-else :src="avatarUrl">
</template>
Component Usage
该函数还通过
@vueuse/components提供了一个无渲染的组件版本。了解更多.
This function also provides a renderless component version via the
@vueuse/componentspackage. Learn more about the usage.
html
<template>
<UseImage src="https://place.dog/300/200">
<template #loading>
Loading..
</template>
<template #error>
Failed
</template>
</UseImage>
</template>
<template>
<UseImage src="https://place.dog/300/200">
<template #loading>
Loading..
</template>
<template #error>
Failed
</template>
</UseImage>
</template>
Type Declarations
typescript
export interface UseImageOptions {
/** Address of the resource */
src: string
/** Images to use in different situations, e.g., high-resolution displays, small monitors, etc. */
srcset?: string
/** Image sizes for different page layouts */
sizes?: string
}
/**
* Reactive load an image in the browser, you can wait the result to display it or show a fallback.
*
* @see https://vueuse.org/useImage
* @param options Image attributes, as used in the <img> tag
* @param asyncStateOptions
*/
export declare const useImage: <Shallow extends true>(
options: MaybeComputedRef<UseImageOptions>,
asyncStateOptions?: UseAsyncStateOptions<Shallow, any>
) => UseAsyncStateReturn<HTMLImageElement | undefined, [], true>
export type UseImageReturn = ReturnType<typeof useImage>
export interface UseImageOptions {
/** Address of the resource */
src: string
/** Images to use in different situations, e.g., high-resolution displays, small monitors, etc. */
srcset?: string
/** Image sizes for different page layouts */
sizes?: string
}
/**
* Reactive load an image in the browser, you can wait the result to display it or show a fallback.
*
* @see https://vueuse.org/useImage
* @param options Image attributes, as used in the <img> tag
* @param asyncStateOptions
*/
export declare const useImage: <Shallow extends true>(
options: MaybeComputedRef<UseImageOptions>,
asyncStateOptions?: UseAsyncStateOptions<Shallow, any>
) => UseAsyncStateReturn<HTMLImageElement | undefined, [], true>
export type UseImageReturn = ReturnType<typeof useImage>