Detailed Tutorial: Creating an Interactive Calendar Widget in Flutter

In many applications, a calendar is more than just a grid of dates; it’s a scheduling tool, an event planner, or a way to visualize data over time. Although ready-made packages exist, building your own calendar widget in Flutter offers unparalleled control over its appearance, functionality, and business logic. In this tutorial, we will dive deep into the process of creating a monthly calendar widget. We’ll dissect the source code snippet by snippet, explaining the logic behind each part. At the end, we will present the complete, clean files, ready to be copied into your project. ...

September 7, 2025 · 14 min