time_widget.dart
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import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:wow_english/common/blocs/timerbloc/timer_bloc.dart';
import 'package:wow_english/common/extension/string_extension.dart';
import 'package:wow_english/common/widgets/timer_ticker.dart';
class TimerWidget extends StatelessWidget {
const TimerWidget({super.key, required this.canSendSms});
final bool canSendSms;
@override
Widget build(BuildContext context) {
return BlocProvider(
create: (_) => TimerBloc(ticker: const TimerTicker()),
child: TimerWidgetView(canSendSms: canSendSms,),
);
}
}
class TimerWidgetView extends StatelessWidget {
final bool canSendSms;
const TimerWidgetView({super.key, required this.canSendSms});
@override
Widget build(BuildContext context) {
return BlocListener<TimerBloc,TimerState>(
listener: (context, s) {
if (s is FinishedState) {
///重置计时器
context.read<TimerBloc>().add(ResetEvent());
}
},
child: _buildCountdownWidget(),
);
}
Widget _buildCountdownWidget() => BlocBuilder<TimerBloc,TimerState>(
buildWhen: (prev, state) => prev.runtimeType != state.runtimeType,
builder: (context,state) {
final bloc = BlocProvider.of<TimerBloc>(context);
return GestureDetector(
onTap: () {
print(bloc.isCountTimer);
if (canSendSms && !bloc.isCountTimer ) {
print(state.duration);
bloc.add(StartEvent(duration: state.duration));
}
},
child: Container(
decoration: BoxDecoration(
image: DecorationImage(
image: AssetImage(
canSendSms && !bloc.isCountTimer ? 'securitycode'.assetPng:'securitycode_dis'.assetPng
),
fit: BoxFit.fill
),
),
padding: const EdgeInsets.symmetric(horizontal:12.0,vertical: 15.0),
child: Row(
children: [
if (state is RunningState)...[
const TimerText()
] else ...[
const Text('获取验证码')
]
],
),
),
);
},
);
}
class TimerText extends StatelessWidget {
const TimerText({super.key});
@override
Widget build(BuildContext context) {
final duration = context.select((TimerBloc bloc) => bloc.state.duration);
final secondsStr = duration.toString().padLeft(2, '0');
return Text(
'${secondsStr}s后再次获取',
);
}
}