custom_progress_button 1.0.2

Custom progress button help developers to build button with defferent states handling. it build with animation to handle each state change during run time

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:custom_progress_button/custom_progress.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'progress button',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'progress button demo'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;
  late ButtonState buttonState;

  @override
  void initState() {
    buttonState = ButtonState.idle;
    super.initState();
  }

  void _incrementCounter() {
    Future.delayed(Duration(seconds: 2)).then((value) {
      setState(() {
        _counter++;
        if (buttonState == ButtonState.idle)
          buttonState = ButtonState.loading;
        else if (buttonState == ButtonState.loading)
          buttonState = ButtonState.fail;
        else if (buttonState == ButtonState.fail)
          buttonState = ButtonState.success;
        else if (buttonState == ButtonState.success)
          buttonState = ButtonState.idle;
      });
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headline4,
            ),
            SizedBox(
              height: 20,
            ),
            ProgressButton(
                // change button text depend on current state
                stateWidgets: {
                  ButtonState.success: Text(
                    'Success',
                    style: TextStyle(fontSize: 20),
                  ),
                  ButtonState.fail: Text(
                    'Fail',
                    style: TextStyle(fontSize: 20),
                  ),
                  ButtonState.loading: Text(
                    'Loading',
                    style: TextStyle(fontSize: 20),
                  ),
                  ButtonState.idle: Text(
                    'Idle',
                    style: TextStyle(fontSize: 20),
                  ),
                },
                // used in case of ButtonShapeEnum = ButtonShapeEnum.flat
                // this is line rounded to button
                inLineBackgroundColor: Colors.red,
                // change button color depending on current button state
                stateColors: {
                  ButtonState.success: Colors.green,
                  ButtonState.fail: Colors.redAccent,
                  ButtonState.loading: Colors.red,
                  ButtonState.idle: Colors.blue,
                },
                // called when animation of button ended
                onAnimationEnd: () {},
                // button radius
                radius: 100.0,
                // button height
                height: 70,
                // button shape enum as elevated, outline, flat
                buttonShapeEnum: ButtonShapeEnum.elevated,
                // change default elevation of button,
                elevation: 10.0,
                // change alignment between progress and text of button in case of loading state
                progressAlignment: MainAxisAlignment.center,
                // disable/enable clicking on button
                enable: true,
                // button states are idle, loading, success, fail
                state: ButtonState.idle,
                // add padding
                padding: EdgeInsets.zero,
                // add max width to button
                maxWidth: 200.0,
                // default min width of button
                minWidth: 100.0,
                // progress size
                progressIndicatorSize: 10.0,
                // change default progress widget of button, default is
                progressWidget: CircularProgressIndicator(),
                // on pressed action
                onPressed: () {
                  _incrementCounter();
                },
                // make your own custom shape
                shapeDecoration: ShapeDecoration(
                  shape: RoundedRectangleBorder(
                    borderRadius: BorderRadius.circular(10.0),
                    side: BorderSide(color: Colors.transparent, width: 0),
                  ),
                  gradient: LinearGradient(
                      colors: [Colors.redAccent, Colors.yellowAccent],
                      tileMode: TileMode.repeated,
                      begin: Alignment.topCenter,
                      end: Alignment.bottomCenter,
                      stops: [0.5, 1]),
                ))
          ],
        ),
      ),
    );
  }
}