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126 lines
3.5 KiB
Markdown
126 lines
3.5 KiB
Markdown
# Image
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### Install
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Register component globally via `app.use`, refer to [Component Registration](#/en-US/advanced-usage#zu-jian-zhu-ce) for more registration ways。
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```js
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import { createApp } from 'vue';
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import { Image as VanImage } from 'vant';
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const app = createApp();
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app.use(VanImage);
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```
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## Usage
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### Basic Usage
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```html
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<van-image width="100" height="100" src="https://img.yzcdn.cn/vant/cat.jpeg" />
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```
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### Fit Mode
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```html
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<van-image
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width="10rem"
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height="10rem"
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fit="contain"
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src="https://img.yzcdn.cn/vant/cat.jpeg"
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/>
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```
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### Round
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Show round image, it may not works at `fit=contain` and `fit=scale-down`.
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```html
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<van-image
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round
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width="10rem"
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height="10rem"
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src="https://img.yzcdn.cn/vant/cat.jpeg"
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/>
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```
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### Lazy Load
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```html
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<van-image
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width="100"
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height="100"
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lazy-load
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src="https://img.yzcdn.cn/vant/cat.jpeg"
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/>
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```
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```js
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import { createApp } from 'vue';
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import { Lazyload } from 'vant';
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const app = createApp();
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app.use(Lazyload);
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```
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## API
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### Props
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| Attribute | Description | Type | Default |
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| --- | --- | --- | --- |
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| src | Src | _string_ | - |
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| fit | Fit mode | _string_ | `fill` |
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| alt | Alt | _string_ | - |
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| width | Width | _number \| string_ | - |
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| height | Height | _number \| string_ | - |
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| radius | Border Radius | _number \| string_ | `0` |
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| round | Whether to be round | _boolean_ | `false` |
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| lazy-load | Whether to enable lazy load，should register [Lazyload](#/en-US/lazyload) component | _boolean_ | `false` |
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| show-error | Whether to show error placeholder | _boolean_ | `true` |
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| show-loading | Whether to show loading placeholder | _boolean_ | `true` |
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| error-icon | Error icon | _string_ | `photo-fail` |
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| loading-icon | Loading icon | _string_ | `photo` |
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| icon-size `v3.0.11` | Icon size | _number \| string_ | `32px` |
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| icon-prefix | Icon className prefix | _string_ | `van-icon` |
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### fit optional value
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| name | desctription |
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| --- | --- |
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| contain | Keep aspect ratio, fully display the long side of the image |
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| cover | Keep aspect ratio, fully display the short side of the image, cutting the long side |
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| fill | Stretch and resize image to fill the content box |
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| none | Not resize image |
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| scale-down | Take the smaller of `none` or `contain` |
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### Events
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| Event | Description | Arguments |
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| ----- | ------------------------------ | ------------------- |
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| click | Emitted when image is clicked | _event: MouseEvent_ |
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| load | Emitted when image loaded | - |
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| error | Emitted when image load failed | - |
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### Slots
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| Name | Description |
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| ------- | ---------------------------------- |
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| default | Custom the content below the image |
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| loading | Custom loading placeholder |
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| error | Custom error placeholder |
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### Less Variables
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How to use: [Custom Theme](#/en-US/theme).
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| Name | Default Value | Description |
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| ----------------------------------- | ------------------- | ----------- |
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| @image-placeholder-text-color | `@gray-6` | - |
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| @image-placeholder-font-size | `@font-size-md` | - |
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| @image-placeholder-background-color | `@background-color` | - |
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| @image-loading-icon-size | `32px` | - |
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| @image-loading-icon-color | `@gray-4` | - |
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| @image-error-icon-size | `32px` | - |
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| @image-error-icon-color | `@gray-4` | - |
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