screenfull：JavaScript全屏API跨浏览器使用的简单包装器，允许您将页面或任何元素带入全屏。消除了浏览器实现的差异，所以您不必这么做。

目录

效果

 源码

一、准备工作

1、安装依赖包

 2、示例版本 

二、使用步骤

1、单页面引入screenfull

2、在data中声明变量，控制显示全屏还是退出全屏的icon

3、在methods中写方法

 4、在mouted和unmouted中使用on 和off方法

三、完整示例

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效果

 源码

GitHub - sindresorhus/screenfull: Simple wrapper for cross-browser usage of the JavaScript Fullscreen API

GitHub - sindresorhus/screenfull: Simple wrapper for cross-browser usage of the JavaScript Fullscreen APISimple wrapper for cross-browser usage of the JavaScript Fullscreen API - GitHub - sindresorhus/screenfull: Simple wrapper for cross-browser usage of the JavaScript Fullscreen APIhttps://github.com/sindresorhus/screenfull

一、准备工作

1、安装依赖包

npm install screenfull

 2、示例版本 

"screenfull": "^6.0.2",

二、使用步骤

1、单页面引入screenfull

import screenfull from "screenfull";

2、在data中声明变量，控制显示全屏还是退出全屏的icon

data() {
    return {
      isFullscreen: false,
    };
  },

3、在methods中写方法

  methods: {
    changeFullscreen() {
      let fullDom = document.getElementById("fullDom");
      if (fullDom) screenfull.toggle(fullDom);
    },
    change() {
      this.isFullscreen = screenfull.isFullscreen;
    },
  },

 4、在mouted和unmouted中使用on 和off方法

  mounted() {
    screenfull.on("change", this.change);
  },
  unmounted() {
    screenfull.off("change", this.change);
  },

三、完整示例

<template>
  <div class="about" id="fullDom">
    <div @click="changeFullscreen">
      <a-icon
        v-if="!isFullscreen"
        type="fullscreen"
      />
      <a-icon v-else type="fullscreen-exit" />
    </div>
  </div>
</template>

<script>
import screenfull from "screenfull";
export default {
  data() {
    return {
      isFullscreen: false,
    };
  },
  methods: {
    changeFullscreen() {
      let fullDom = document.getElementById("fullDom");
      if (fullDom) screenfull.toggle(fullDom);
    },
    change() {
      this.isFullscreen = screenfull.isFullscreen;
    },
  },
  mounted() {
    screenfull.on("change", this.change);
  },
  unmounted() {
    screenfull.off("change", this.change);
  },
};
</script>

<style scoped>
.about {
  background-color: #fff;
}
</style>

tips：务必指定dom节点，更多方法请详见https://github.com/sindresorhus/screenfull

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