How to join the dashboard in uniapp

As the mobile application market continues to develop and competition becomes more intense, as developers we need to continuously improve the user experience and attractiveness of our applications to maintain the competitiveness of our applications in the market. Dashboard is a very useful feature that helps users use the app better by giving them an overview of the app at a glance. In this article, we will discuss how to add a dashboard in uniapp.

1. What is a dashboard?

A dashboard is a visual control panel that displays application data, metrics, and analytics and provides users with a simple, easy-to-use interface. It allows users to quickly understand application information, such as the number of active users, visits, revenue, etc. of the application. Through the dashboard, users can better understand the overall situation of the application and can make better decisions.

2. Use Vue.js's dependency library vue-chartjs to add a dashboard

In uniapp, we can use Vue.js's dependency library vue-chartjs to add a dashboard. vue-chartjs is a plug-in for Vue.js 2.0 based on Chart.js, which allows us to easily create charts and dashboards.

First, we need to install the vue-chartjs dependency library, which can be installed through the npm command.

npm install vue-chartjs --save

Then we need to import the required components in our vue file. Below is a simple dashboard example.

<template>
  <div>
    <bar-chart></bar-chart>
  </div>
</template>
 
<script>
import { Bar } from 'vue-chartjs'
 
export default {
  extends: Bar,
  mounted () {
    this.renderChart({
      labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
      datasets: [
        {
          label: 'Data One',
          backgroundColor: '#f87979',
          data: [40, 39, 10, 40, 39, 80, 40]
        }
      ]
    }, {responsive: true, maintainAspectRatio: false})
  }
}
</script>

We can see that we first imported the Bar component, and then created our dashboard by inheriting Bar. In the mounted lifecycle, we use the renderChart method to render our dashboard. In the renderChart method, we can specify our data and configuration items. In this example, we specified a histogram that contains seven months of data. We also specified configuration items to handle responsiveness issues and maintain aspect ratio.

3. Use AntV’s dependency library G2 to add a dashboard

In addition to vue-chartjs, we can also use AntV’s dependency library G2 to add a dashboard. G2 is a professional visualization charting library that provides a variety of charts and visualization tools, including dashboards.

Similarly, we need to install G2 dependent libraries. It can be installed through the npm command.

npm install @antv/g2 --save

Then we need to import the required components in our vue file. Below is a simple dashboard example.

<template>
  <div ref="chart"></div>
</template>
 
<script>
import G2 from '@antv/g2'
 
export default {
  mounted () {
    const data = [
      { year: '2014', sales: 1000 },
      { year: '2015', sales: 1170 },
      { year: '2016', sales: 660 },
      { year: '2017', sales: 1030 },
      { year: '2018', sales: 1230 },
      { year: '2019', sales: 1400 },
      { year: '2020', sales: 1700 }
    ];
 
    const chart = new G2.Chart({
      container: this.$refs.chart,
      width: 500,
      height: 300
    });
 
    chart.source(data);
    chart.interval().position('year*sales');
    chart.render();
  }
}
</script>

We can see that we first imported the G2 library, and then used G2.Chart in the mounted life cycle to create our dashboard. In the Chart constructor, we specify the container, width, and height of the drawing area. We then specified the source data and created a histogram using the interval method. Finally, we use the render method to render our dashboard.

4. Summary

In this article, we discussed how to add a dashboard in uniapp by using vue-chartjs and the G2 library. Dashboard is a very useful feature that helps users use the app better by giving them an overview of the app at a glance. We can choose a suitable library to create our dashboard according to our needs to improve the user experience and attractiveness of our application.

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