vue2 uses v-viewer to implement image preview

v-viewer
is a Vue component used for image browsing. It supports operations such as rotation, scaling, and flipping. It is based on viewer.js.

Chinese document: Vue image browsing component v-viewer, supports rotation, scaling, flipping and other operations | Mirari's Blog

Code example: https://mirari.cc/v-viewer/

It is relatively simple to use the v-viewer plug-in to implement the image preview function in Vue.js 2. v-viewer is a Vue.js image preview plug-in that can easily realize functions such as zooming in, zooming out, and sliding preview of images. Here are the implementation steps:

Install the v-viewer plug-in:
Use npm or yarn to install the v-viewer plug-in in the project directory.

npm install v-viewer --save  
npm i -S viewerjs
# 或
yarn add v-viewer
yarn add  viewerjs

Introduce and configure the v-viewer plug-in in the main.js file:

这行放在：import App from './App.vue'; 之前
import Viewer from 'v-viewer';
 
import 'viewerjs/dist/viewer.css';
 
Vue.use(Viewer);
或者
Vue.use(Viewer, {
  defaultOptions: {
    zIndex: 9999, // 设置图片预览组件的层级，确保能在其他组件之上
  },
});

Use the v-viewer directive in components that need to preview images:

<template>
  <div>
    <!-- 点击图片触发预览 -->
    <img v-for="(image, index) in imageList" :key="index" :src="image" v-viewer />
  </div>
</template>

<script>
export default {
  data() {
    return {
      imageList: [
        'https://example.com/image1.jpg',
        'https://example.com/image2.jpg',
        // 添加更多图片链接
      ],
    };
  },
};
</script

You can also use the following method

<template>
  <div>
    <button type="button" class="button" @click="previewURL">URL Array</button>
  </div>
</template>
<script>
  export default {
    data() {
      sourceImageURLs: [
        'https://picsum.photos/200/200?random=1',
        'https://picsum.photos/200/200?random=2',
      ],
    },
    methods: {
      previewURL () {
        // 如果使用`app.use`进行全局安装, 你就可以像这样直接调用`this.$viewerApi`
        const $viewer = this.$viewerApi({
          images: this.sourceImageURLs
        });
      },
    },
  };
</script>

In the above code, we apply the v-viewer directive to the img tag, so that the preview effect will be triggered when the image is clicked.