gradient_borders 1.0.3

Gradient borders for inputs and containers. Borders package integrated with a basic flutter widgets as a container and input decorations. Easy in use, platform independent.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:gradient_borders/gradient_borders.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key}) : super(key: key);

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("Gradient borders"),
      ),
      body: Row(
        children: [
          _gradientBorders(),
          SizedBox.square(dimension: 50),
          _solidBorders(),
        ],
      ),
    );
  }

  Expanded _gradientBorders() {
    return Expanded(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: <Widget>[
          Container(
            width: 100,
            height: 100,
            decoration: BoxDecoration(
                border: const GradientBoxBorder(
                  gradient: LinearGradient(colors: [Colors.blue, Colors.red]),
                  width: 4,
                ),
                borderRadius: BorderRadius.circular(16)),
          ),
          const SizedBox(height: 16),
          Container(
            width: 100,
            height: 100,
            decoration: const BoxDecoration(
              border: GradientBoxBorder(
                gradient: LinearGradient(colors: [Colors.green, Colors.yellow]),
                width: 4,
              ),
            ),
          ),
          const SizedBox(height: 16),
          Container(
            width: 100,
            height: 100,
            decoration: const BoxDecoration(
              shape: BoxShape.circle,
              border: GradientBoxBorder(
                gradient: LinearGradient(colors: [Colors.pink, Colors.orange]),
                width: 4,
              ),
            ),
          ),
          const SizedBox(height: 16),
          const TextField(
            decoration: InputDecoration(
              border: GradientOutlineInputBorder(
                gradient: LinearGradient(colors: [Colors.red, Colors.blue]),
                width: 2,
              ),
              focusedBorder: GradientOutlineInputBorder(
                  gradient:
                      LinearGradient(colors: [Colors.yellow, Colors.green]),
                  width: 2),
              label: Text("Example"),
            ),
          ),
          const SizedBox(height: 16),
          const TextField(
            decoration: InputDecoration(
              border: GradientUnderlineInputBorder(
                gradient: LinearGradient(colors: [Colors.red, Colors.blue]),
                width: 2,
              ),
              focusedBorder: GradientOutlineInputBorder(
                  gradient:
                      LinearGradient(colors: [Colors.yellow, Colors.green]),
                  width: 2),
              label: Text("Example"),
            ),
          ),
        ],
      ),
    );
  }

  Widget _solidBorders() {
    var strokeAlign = BorderSide.strokeAlignOutside;
    return Expanded(
      child: InteractiveViewer(
        clipBehavior: Clip.none,
        child: Stack(
          clipBehavior: Clip.none,
          children: [
            Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: <Widget>[
                Container(
                  width: 100,
                  height: 100,
                  clipBehavior: Clip.hardEdge,
                  decoration: BoxDecoration(
                    color: Colors.black,
                    border: Border.all(
                      strokeAlign: strokeAlign,
                      color: Colors.blue,
                      width: 4,
                    ),
                    // borderRadius: BorderRadius.circular(16),
                  ),
                ),
                const SizedBox(height: 8),
                Container(
                  width: 100,
                  height: 100,
                  decoration: BoxDecoration(
                    color: Colors.black,
                    border: GradientBoxBorder(
                      strokeAlign: strokeAlign,
                      gradient:
                          LinearGradient(colors: [Colors.blue, Colors.red]),
                      width: 4,
                    ),
                    // borderRadius: BorderRadius.circular(16),
                  ),
                ),
                const SizedBox(height: 16),
                Container(
                  width: 100,
                  height: 100,
                  decoration: BoxDecoration(
                    border: Border.all(
                      color: Colors.green,
                      width: 4,
                    ),
                  ),
                ),
                const SizedBox(height: 16),
                Container(
                  width: 100,
                  height: 100,
                  decoration: BoxDecoration(
                    shape: BoxShape.circle,
                    border: Border.all(
                      color: Colors.pink,
                      width: 4,
                    ),
                  ),
                ),
                const SizedBox(height: 16),
              ],
            ),
            Positioned.fill(
                child: GridPaper(
              color: Colors.red,
            )),
          ],
        ),
      ),
    );
  }
}