How to handle page skeleton and loading animation in Vue

How to handle the skeleton and loading animation of the page in Vue requires specific code examples

When developing web applications, the loading speed of the page is a very important factor. Fast loading pages can not only improve user experience, but also effectively increase user retention rate. In the Vue framework, we can optimize the page loading process and provide users with a better experience by using page skeletons and loading animations.

Page skeleton refers to providing a pre-designed interface framework to fill the blank area of ​​the page before the page data is loaded, so that users can have a general understanding of the structure and layout of the page. The loading animation shows a dynamic effect to the user during the page data loading process to remind the user that the page is loading and increase the user's patience and waiting time.

Below, I will use code examples to introduce how to handle the page's skeleton and loading animation in Vue.

First, we need to install the vue-content-loader plug-in, which can be used to generate the code for the skeleton screen. Run the following command in the terminal:

npm install vue-content-loader

Next, introduce and register vue-content-loader in the component where you need to add a skeleton screen:

// 引入vue-content-loader
import ContentLoader from 'vue-content-loader'

export default {
  // 注册ContentLoader组件
  components: {
    ContentLoader
  },
  // ...
}

Next , use the ContentLoader component in the template, and define the style and layout of the skeleton screen:

<template>
  <div>
    <ContentLoader
      :width="300"
      :height="200"
      primaryColor="#f3f3f3"
      secondaryColor="#ecebeb"
    >
      <rect x="0" y="0" rx="5" ry="5" :width="300" :height="10"/>
      <rect x="0" y="20" rx="5" ry="5" :width="250" :height="10"/>
      <rect x="0" y="40" rx="5" ry="5" :width="200" :height="10"/>
      <rect x="0" y="60" rx="5" ry="5" :width="150" :height="10"/>
    </ContentLoader>
  </div>
</template>

In the above code, we use the ContentLoader component to create a 300x200px Skeleton screen uses rect elements to define the style and layout of the skeleton screen. primaryColor is used to define the primary color, secondaryColor is used to define the secondary color.

Next, let’s introduce how to add loading animation in Vue.

First of all, we can use the v-if instruction provided by Vue to control the display and hiding of the loading animation. We can control the display and hiding of loading animation by defining a isLoading attribute in the data. When the data is loaded, set the isLoading property to false and the loading animation will disappear.

Next, in the component where loading animation needs to be added, you can use Vue's calculated properties to show or hide the loading animation based on the value of isLoading.

export default {
  data() {
    return {
      isLoading: true, // 数据是否正在加载中
      data: null, // 数据
    }
  },
  computed: {
    showLoadingAnimation() {
      return this.isLoading ? 'loading-animation' : 'data-content'
    },
  },
  // ...
}

In the template, we can use the v-if directive to control the display and hiding of the loading animation based on the value of the calculated property showLoadingAnimation.

<template>
  <div>
    <div v-if="showLoadingAnimation === 'loading-animation'">
      <p>加载中...</p>
      <!-- 这里可以使用第三方库来添加加载动画 -->
    </div>
    <div v-else-if="showLoadingAnimation === 'data-content'">
      <!-- 数据内容 -->
    </div>
  </div>
</template>

In the above code, we wrap the loading animation with the div element, and decide whether to display the loading animation or the data content based on the value of showLoadingAnimation.

To sum up, by using the plug-ins and instructions provided by the Vue framework, we can easily add skeleton screens and loading animations to the page to improve the loading speed and user experience of the page. I hope this article can help you understand how to handle the skeleton and loading animation of the page in Vue.

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