How to use Vue and Element-UI to implement progress bar and loading animation effects

How to use Vue and Element-UI to implement progress bar and loading animation effects

Vue.js is a lightweight front-end framework, and Element-UI is a UI component library based on Vue.js , which provides a wealth of components and interactive effects, which can help us quickly develop beautiful front-end interfaces. This article will introduce how to use Vue and Element-UI to implement progress bar and loading animation effects.

1. Install and introduce Element-UI

First, you need to install the Element-UI library. Install through npm or yarn:

npm install element-ui

Then, introduce Element-UI’s styles and components into your project entry file (usually main.js):

import Vue from 'vue';
import ElementUI from 'element-ui';
import 'element-ui/lib/theme-chalk/index.css';

Vue.use(ElementUI);

2. Use progress Bar component

Element-UI provides the <el-progress> component for displaying the progress bar. You can control the progress of the progress bar by setting the percentage attribute:

<template>
  <el-progress :percentage="progress"></el-progress>
</template>

<script>
export default {
  data() {
    return {
      progress: 50
    };
  }
};
</script>

In the above example, we control the progress of the progress bar to 50 through the progress attribute %. You can set different progress values ​​in the data of the Vue instance according to actual needs to achieve a dynamic progress bar effect.

3. Use loading animation effects

Element-UI provides a variety of loading animation effects, including skeleton screen, loading, line chart, radar chart, etc. You can use <el-skeleton>, <el-loading>, <el-line> and <el-radial&gt ; and other components to use these effects.

The following takes the skeleton screen and loading as an example:

3.1 Using the skeleton screen

The skeleton screen is a common loading effect, which is usually used for page or component loading A predetermined skeleton structure is displayed at the same time to increase the user's waiting experience.

Element UI provides the <el-skeleton> component to achieve the skeleton screen effect. The following is a simple example:

<template>
  <el-skeleton :loading="loading"></el-skeleton>
</template>

<script>
export default {
  data() {
    return {
      loading: true
    };
  }
};
</script>

In the above example, we control the display and hiding of the skeleton screen through the loading attribute. By modifying the value of loading, you can control the loading status of the skeleton screen.

3.2 Using Loading

Loading is another common loading effect, which is usually used for waiting prompts during asynchronous requests or operations.

Element UI provides the <el-loading> component to achieve the loading effect. Here is a simple example:

<template>
  <el-button @click="startLoading">点击开始加载</el-button>
</template>

<script>
export default {
  methods: {
    startLoading() {
      const loadingInstance = this.$loading({ text: '加载中...' });

      setTimeout(() => {
        loadingInstance.close();
      }, 2000);
    }
  }
};
</script>

In the above example, we start the loading effect by calling the this.$loading method, and pass loadingInstance.close() Method to end the loading effect. You can adjust the loading display time according to specific business needs.

Conclusion

Through the introduction of this article, you have learned how to use Vue and Element-UI to implement progress bar and loading animation effects. Progress bars can be used to show the progress of operations, and loading animations can increase the user's waiting experience. You can combine other components and effects provided by Element-UI according to your own needs to further enrich your front-end interface.

This article only introduces some basic usage methods. Element-UI has many other components and functions that can be explored. If you are interested in Element-UI, you can check the official documentation for more information and quickly improve your front-end development skills.

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