有人能帮忙追踪音频的位置吗?
if(durationtoOne(position==5)){
FlutterToast.Showtoast(msg:"I am At 5 sec");
}
我卡在了不知道把这段代码加在哪里,如果加在initstate中会报错, 我想通过音频播放器监听位置。
代码从这里开始
import 'dart:async';
import 'package:assets_audio_player/assets_audio_player.dart';
import 'package:flutter/material.dart';
import 'package:fluttertoast/fluttertoast.dart';
class SmartMantra extends StatefulWidget {
@override
_SmartMantraState createState() => _SmartMantraState();
}
class _SmartMantraState extends State<SmartMantra> {
StreamSubscription _positionSubscription;
Duration position;
AssetsAudioPlayer _assetsAudioPlayer;
stream() {
_positionSubscription = _assetsAudioPlayer.currentPosition
.listen((p) => setState(() => position = p),);
}
@override
void initState() {
_assetsAudioPlayer.open("assets/shivamantra.mp3");
stream();
_assetsAudioPlayer.finished.listen((finished) {
print(finished);
// print(count);
});
super.initState();
}
@override
void dispose() {
_positionSubscription.cancel();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: Column(
children: <Widget>[
SizedBox(
height: 70,
),
Center(
child: Text(
durationToone(position).toString(),
style: TextStyle(color: Colors.black, fontSize: 12),
),
),
//getTextContainer()
],
));
}
int durationToone(Duration duration) {
int twoDigits(int n) {
if (n >= 10) return n;
return n;
}
int twoDigitSeconds =
twoDigits(duration.inSeconds.remainder(Duration.secondsPerMinute));
return twoDigitSeconds;
}
}
代码在这里结束
概述:当特定位置发生改变时,需要触发某些功能(例如)。
if(durationtoOne(position==5)){
FlutterToast.Showtoast(msg:"I am At 5 sec");
}
通过音频播放或应用程序在前台的方式