video_widget.dart
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import 'package:common_utils/common_utils.dart';
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:video_player/video_player.dart';
import 'package:wow_english/common/extension/string_extension.dart';
import 'package:wow_english/pages/video/lookvideo/bloc/look_video_bloc.dart';
import 'package:wow_english/route/route.dart';
import 'video_opera_widget.dart';
class VideoWidget extends StatefulWidget {
const VideoWidget({super.key, this.videoUrl = '',this.typeTitle, this.courseLessonId = '', this.isTopic = false});
final String videoUrl;
final String? typeTitle;
final String courseLessonId;
final bool isTopic;
@override
State<StatefulWidget> createState() {
return _VideoWidgetState();
}
}
class _VideoWidgetState extends State<VideoWidget> {
VideoPlayerController? _controller;
String _currentTime = '00:00';
String _totalTime = '00:00';
double _playDegree = 0.0;
bool _hiddenTipView = false;
TimerUtil? timerUtil;
String formatDuration(Duration duration) {
String hours = duration.inHours.toString().padLeft(2, '0');
String minutes = duration.inMinutes.remainder(60).toString().padLeft(2, '0');
String seconds = duration.inSeconds.remainder(60).toString().padLeft(2, '0');
return "$hours:$minutes:$seconds";
}
void _addListener() {
_controller!.addListener(() {
if(_controller!.value.isInitialized) {
if (_controller!.value.isPlaying) {
setState(() {
double currentSecond = (_controller!.value.position.inMinutes.remainder(60)*60+_controller!.value.position.inSeconds.remainder(60)).toDouble();
int totalSecond = _controller!.value.duration.inMinutes.remainder(60)*60+_controller!.value.duration.inSeconds.remainder(60);
_currentTime = formatDuration(_controller!.value.position);
_playDegree = currentSecond/totalSecond;
if (_playDegree > 1.0) {
_playDegree = 1.0;
}
if(_playDegree < 0) {
_playDegree = 0.0;
}
});
} else if (_controller!.value.isCompleted) {
context.read<LookVideoBloc>().completeSection((){
String currentTime = (_controller!.value.position.inMinutes.remainder(60)*60+_controller!.value.position.inSeconds.remainder(60)).toString();
popPage(data:{'courseLessonId':widget.courseLessonId,'currentTime':currentTime,
'nextSection':widget.isTopic});
} as VoidCallback);
}
}
});
}
//开始倒计时
void startTimer() {
if(timerUtil == null) {
timerUtil = TimerUtil(mInterval: 1000,mTotalTime: 1000*10);
timerUtil!.setOnTimerTickCallback((int tick) {
double currentTick = tick / 1000;
if (currentTick.toInt() == 0) {//倒计时结束
setState(() {
_hiddenTipView = true;
});
timerUtil!.cancel();
timerUtil = null;
}
});
timerUtil!.startCountDown();
}
}
//取消倒计时
void cancelTimer() {
timerUtil!.cancel();
timerUtil = null;
}
void actionType(OperationType type) async {
if (type == OperationType.back) {
if (widget.courseLessonId.isEmpty) {
popPage();
} else {
if (_controller == null) {
popPage();
return;
}
String currentTime = (_controller!.value.position.inMinutes.remainder(60)*60+_controller!.value.position.inSeconds.remainder(60)).toString();
popPage(data:{'courseLessonId':widget.courseLessonId,'currentTime':currentTime});
}
} else if (type == OperationType.playState) {
if (_controller!.value.isPlaying) {
_controller!.pause();
} else {
_controller!.play();
}
setState(() {
});
}
}
@override
void initState() {
super.initState();
Uri uri = Uri.parse(widget.videoUrl);
_controller = VideoPlayerController.networkUrl(uri)
..initialize().then((_){
startTimer();
setState(() {
_currentTime = formatDuration(_controller!.value.position);
_totalTime = formatDuration(_controller!.value.duration);
_controller!.setLooping(!widget.isTopic);
_controller!.setVolume(100);
_controller!.play();
});
_addListener();
});
}
@override
Widget build(BuildContext context) {
return GestureDetector(
onTap: () {
setState(() {
_hiddenTipView = !_hiddenTipView;
if(!_hiddenTipView) {
startTimer();
} else {
if (timerUtil!.isActive()) {
cancelTimer();
}
}
});
},
onDoubleTap: () {
if(_controller!.value.isInitialized) {
if (_controller!.value.isPlaying) {
_controller!.pause();
} else {
_controller!.play();
}
setState(() {
});
}
},
child: Center(
child: _controller!.value.isInitialized ? Stack(
alignment: Alignment.center,
children: [
SizedBox(
height: double.infinity,
width: double.infinity,
child: AspectRatio(
aspectRatio: _controller!.value.aspectRatio,
child: VideoPlayer(_controller!),
),
),
Offstage(
offstage: _hiddenTipView,
child: VideoOperaWidget(
title: widget.typeTitle??'song',
degree: _playDegree,
totalTime: _totalTime,
currentTime: _currentTime,
isPlay: _controller!.value.isPlaying,
actionEvent: (OperationType type) {
actionType(type);
},
sliderChangeEvent: (double degree) {
int totalSecond = _controller!.value.duration.inMinutes.remainder(60)*60+_controller!.value.duration.inSeconds.remainder(60);
int positionSecond = (totalSecond * degree).toInt();
_controller!.seekTo(Duration(seconds: positionSecond));
},
),
),
Offstage(
offstage: _controller!.value.isPlaying,
child: IconButton(
onPressed: () {
_controller!.play();
},
icon: Image.asset(
'video_stop'.assetPng,
width: 70.w,
height: 70.h,
),
),
)
],
): Container(
color: Colors.white,
child: Text(
'视频加载中....',
style: TextStyle(
fontSize: 20.sp,
color: Colors.black
),
),
),
),
);
}
@override
void dispose() {
_controller?.dispose();
_controller?.removeListener(() {});
if (timerUtil != null) {
timerUtil!.cancel();
timerUtil = null;
}
super.dispose();
}
}