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nelsonjunior/app_bloc.dart

Last active October 6, 2019 23:04
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Erro usando Bloc Pattern
Raw
app_bloc.dart
import 'dart:async';
import 'package:bloc_pattern/bloc_pattern.dart';
class AppBloc extends BlocBase {
DateTime dataSelecionada = DateTime.now();
final StreamController<DateTime> _dataSelecionada$ = StreamController<DateTime>();
Stream<DateTime> get dataStream => _dataSelecionada$.stream;
void dataAnterior() {
dataSelecionada = dataSelecionada.subtract(Duration(days: 1));
_dataSelecionada$.sink.add(dataSelecionada);
}
void proximaData() {
dataSelecionada = dataSelecionada.add(Duration(days: 1));
_dataSelecionada$.sink.add(dataSelecionada);
}
@override
void dispose() {
super.dispose();
_dataSelecionada$.close();
}
}
Raw
indicador.dart
import 'package:flutter/material.dart';
import 'package:ts_controle_ponto/app/app_bloc.dart';
import 'package:ts_controle_ponto/app/app_module.dart';
import 'package:ts_controle_ponto/app/shared/themes/colors.dart';
import 'package:ts_controle_ponto/app/shared/utils/data_utils.dart';
import 'package:vector_math/vector_math_64.dart' as math;
class IndicadorJornada extends StatefulWidget {
final double goalCompleted = 0.7;
@override
_IndicadorJornadaState createState() => _IndicadorJornadaState();
}
class _IndicadorJornadaState extends State<IndicadorJornada>
with SingleTickerProviderStateMixin {
AnimationController _radialProgressAnimationController;
Animation<double> _progressAnimation;
final Duration fadeInDuration = Duration(milliseconds: 500);
final Duration fillDuration = Duration(seconds: 2);
double progressDegress = 0.0;
@override
void initState() {
super.initState();
_radialProgressAnimationController =
AnimationController(vsync: this, duration: Duration(seconds: 3));
_progressAnimation = Tween(begin: 0.0, end: 360.0).animate(CurvedAnimation(
parent: _radialProgressAnimationController,
curve: Curves.easeInOutSine))
..addListener(() {
setState(() {
progressDegress = widget.goalCompleted * _progressAnimation.value;
});
});
_radialProgressAnimationController.forward();
}
@override
void dispose() {
super.dispose();
_radialProgressAnimationController.dispose();
}
@override
Widget build(BuildContext context) {
return CustomPaint(
child: Container(
height: 200.0,
width: 200.0,
padding: EdgeInsets.symmetric(vertical: 40.0),
child: AnimatedOpacity(
opacity: progressDegress > 30.0 ? 1.0 : 0.0,
duration: fadeInDuration,
child: Column(
children: <Widget>[
Text(
'HORAS',
style: TextStyle(fontSize: 24.0, letterSpacing: 1.5),
),
SizedBox(
height: 4.0,
),
Container(
height: 5.0,
width: 80.0,
decoration: BoxDecoration(
color: corPrincipal1,
borderRadius: BorderRadius.all(Radius.circular(4.0))),
),
SizedBox(
height: 10.0,
),
StreamBuilder<DateTime>(
stream: AppModule.to.bloc<AppBloc>().dataStream,
builder: (context, snapshot) {
return Text(
formatarHora.format(snapshot.data),
style: TextStyle(fontSize: 40.0, fontWeight: FontWeight.bold),
);
}
),
Text(
'Jornada 8h/dia',
style: TextStyle(
fontSize: 14.0, color: Colors.blue, letterSpacing: 1.5),
),
],
),
),
),
painter: RadialPainter(progressDegress),
);
}
}
class RadialPainter extends CustomPainter {
double progressInDegrees;
RadialPainter(this.progressInDegrees);
@override
void paint(Canvas canvas, Size size) {
Paint paint = Paint()
..color = Colors.black12
..strokeCap = StrokeCap.round
..style = PaintingStyle.stroke
..strokeWidth = 10.0;
Offset center = Offset(size.width / 2, size.height / 2);
canvas.drawCircle(center, size.width / 2, paint);
Paint progressPaint = Paint()
..shader = LinearGradient(
colors: [Colors.blue, Colors.deepPurple, Colors.purpleAccent])
.createShader(Rect.fromCircle(center: center, radius: size.width / 2))
..strokeCap = StrokeCap.round
..style = PaintingStyle.stroke
..strokeWidth = 15.0;
canvas.drawArc(
Rect.fromCircle(center: center, radius: size.width / 2),
math.radians(-90),
math.radians(progressInDegrees),
false,
progressPaint);
}
@override
bool shouldRepaint(CustomPainter oldDelegate) {
return true;
}
}
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