fluffychat/lib/components/dialogs/recording_dialog.dart
2021-03-04 12:45:15 +01:00

138 lines
3.8 KiB
Dart

import 'dart:async';
import 'dart:io';
import 'dart:math';
import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/l10n.dart';
import 'package:flutter_sound_lite/flutter_sound.dart';
import 'package:path_provider/path_provider.dart';
class RecordingDialog extends StatefulWidget {
const RecordingDialog({
Key key,
}) : super(key: key);
@override
_RecordingDialogState createState() => _RecordingDialogState();
}
class _RecordingDialogState extends State<RecordingDialog> {
final FlutterSoundRecorder flutterSound = FlutterSoundRecorder();
String time = '00:00:00';
StreamSubscription _recorderSubscription;
bool error = false;
String _recordedPath;
double _decibels = 0;
void startRecording() async {
try {
await flutterSound.openAudioSession();
await flutterSound.setSubscriptionDuration(Duration(milliseconds: 100));
final codec = Codec.aacADTS;
final tempDir = await getTemporaryDirectory();
_recordedPath = '${tempDir.path}/recording${ext[codec.index]}';
// delete any existing file
var outputFile = File(_recordedPath);
if (outputFile.existsSync()) {
await outputFile.delete();
}
await flutterSound.startRecorder(codec: codec, toFile: _recordedPath);
_recorderSubscription = flutterSound.onProgress.listen((e) {
setState(() {
_decibels = e.decibels;
time =
'${e.duration.inMinutes.toString().padLeft(2, '0')}:${(e.duration.inSeconds % 60).toString().padLeft(2, '0')}';
});
});
} catch (e) {
error = true;
}
}
@override
void initState() {
super.initState();
startRecording();
}
@override
void dispose() {
if (flutterSound.isRecording) flutterSound.stopRecorder();
_recorderSubscription?.cancel();
flutterSound.closeAudioSession();
super.dispose();
}
@override
Widget build(BuildContext context) {
if (error) {
Timer(Duration(seconds: 1), () {
Navigator.of(context, rootNavigator: false).pop();
});
}
const maxDecibalWidth = 64.0;
final decibalWidth = min(_decibels / 2, maxDecibalWidth).toDouble();
return AlertDialog(
content: Row(
children: <Widget>[
Container(
width: maxDecibalWidth,
height: maxDecibalWidth,
alignment: Alignment.center,
child: AnimatedContainer(
duration: Duration(milliseconds: 50),
width: decibalWidth,
height: decibalWidth,
decoration: BoxDecoration(
color: Colors.red,
borderRadius: BorderRadius.circular(decibalWidth),
),
),
),
SizedBox(width: 8),
Expanded(
child: Text(
'${L10n.of(context).recording}: $time',
style: TextStyle(
fontSize: 18,
),
),
),
],
),
actions: <Widget>[
TextButton(
onPressed: () => Navigator.of(context, rootNavigator: false).pop(),
child: Text(
L10n.of(context).cancel.toUpperCase(),
style: TextStyle(
color: Theme.of(context).textTheme.bodyText2.color.withAlpha(150),
),
),
),
TextButton(
onPressed: () async {
await _recorderSubscription?.cancel();
await flutterSound.stopRecorder();
Navigator.of(context, rootNavigator: false)
.pop<String>(_recordedPath);
},
child: Row(
children: <Widget>[
Text(L10n.of(context).send.toUpperCase()),
SizedBox(width: 4),
Icon(Icons.send_outlined, size: 15),
],
),
),
],
);
}
}