How to Create Dotted Border Container in Flutter

In this guide, you will learn how to create a dotted border container in Flutter using the dotted_border package. We will go through the steps required to install and import the package, and then create a dotted border container with a custom border radius. By the end of this guide, you will have a good understanding of how to use the dotted_border package to create custom dotted borders in your Flutter projects. Let's get started!

Here’s a step-by-step guide on how to create a dotted border container using the dotted_border package in Flutter:

1. First, open your Flutter project and add the dotted_border package to your dependencies in pubspec.yaml:

   dependencies:
     dotted_border: ^2.0.0
   

2. Next, import the package in your Dart file where you want to use it:

   import 'package:dotted_border/dotted_border.dart';
   

3. To create a dotted border container, wrap the Container widget with the DottedBorder widget:

   DottedBorder(
     strokeWidth: 2,
     color: Colors.grey,
     borderType: BorderType.RRect,
     radius: Radius.circular(10),
     dashPattern: [5, 5],
     child: Container(
       width: 200,
       height: 100,
       color: Colors.white,
     ),
   )
   

4. Here’s what each parameter means:

   • strokeWidth: the width of the border in pixels.
   • color: the color of the border.
   • borderType: the shape of the border. In this case, we use BorderType.RRect to create a rectangular border with rounded corners.
   • radius: the radius of the corners of the border.
   • dashPattern: the pattern of the dashes and gaps in the border. In this case, we use [5, 5] to create a dotted line.
   • child: the child widget inside the border. In this case, we use a simple Container with a white background color.

5. Finally, you can use this DottedBorder widget just like any other widget in your Flutter app, by adding it to a Column, Row, or other layout widget.

And that’s it! With just a few lines of code and the dotted_border package, you can create a stylish dotted border container in your Flutter app.

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