fl_chart In Flutter

Updated 28 June 2023


Charts are frequently used in business settings and can help viewers quickly grasp the information being conveyed — a valuable benefit, given the volume of information everyone must process each day, especially in today’s hyper-connected world. In Flutter we used fl_Chart in Flutter to show the relationship between multiple data sets as a graphical view.

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What Is a Chart?

A chart combines text, symbols and/or graphics to show the relationship between multiple data sets. They are a popular method for sharing information in different settings. For instance, a bar chart could show how sales of a particular flavor of ice cream have changed over the past five years. The length of each bar would indicate sales for that year.

We’re going to use the LineGraph from the fl_chart package.

Line Graphs

Line graphs typically are used to show changes or trends in continuous data over a period of time, with a line connecting the dots that represent the different values. For instance, in a line chart showing a company’s stock price over the past week, a line would connect the dots that visualize the change in price each day.

Add these two packages to your pubspec.yaml file.

fl_chart to use the chart package and date_format to format the date.

Create a new file graph_view.dart.

Add a new file for model data. graph_model.dart

Create a new file to manage and add the dummy data in Graph View. graph_data_helper.dart

Let’s add dummy data.

Main.dart file code is here.

That’s all for this Article 🎊 .


fl_chart in Flutter In this blog we’ve learned how to use the LineGraph in Flutter app.

Use can visit the fl_chart GitHub page for more examples.

Thanks for reading this blog. You can also check other blogs from here for more knowledge.

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