131 lines
3.5 KiB
Dart
131 lines
3.5 KiB
Dart
import 'dart:async';
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import 'dart:io';
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import 'dart:math';
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import 'package:flutter/material.dart';
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import 'package:flutter_gen/gen_l10n/l10n.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:record/record.dart';
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class RecordingDialog extends StatefulWidget {
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static const String recordingFileType = 'mp3';
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const RecordingDialog({
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Key key,
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}) : super(key: key);
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@override
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_RecordingDialogState createState() => _RecordingDialogState();
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}
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class _RecordingDialogState extends State<RecordingDialog> {
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String time = '00:00:00';
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Timer _recorderSubscription;
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Duration _duration;
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bool error = false;
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String _recordedPath;
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void startRecording() async {
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try {
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final tempDir = await getTemporaryDirectory();
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_recordedPath =
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'${tempDir.path}/recording_${DateTime.now().millisecondsSinceEpoch}.${RecordingDialog.recordingFileType}';
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// delete any existing file
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final outputFile = File(_recordedPath);
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if (outputFile.existsSync()) {
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await outputFile.delete();
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}
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await Record.start(path: _recordedPath);
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setState(() => _duration = Duration.zero);
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_recorderSubscription?.cancel();
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_recorderSubscription = Timer.periodic(Duration(seconds: 1),
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(_) => setState(() => _duration += Duration(seconds: 1)));
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} catch (e) {
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error = true;
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}
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}
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@override
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void initState() {
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super.initState();
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startRecording();
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}
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@override
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void dispose() {
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_recorderSubscription?.cancel();
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Record.stop();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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if (error) {
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Timer(Duration(seconds: 1), () {
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Navigator.of(context, rootNavigator: false).pop();
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});
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}
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const maxDecibalWidth = 64.0;
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final decibalWidth =
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min(_duration.inSeconds % 2 / 2, maxDecibalWidth).toDouble();
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return AlertDialog(
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content: Row(
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children: <Widget>[
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Container(
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width: maxDecibalWidth,
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height: maxDecibalWidth,
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alignment: Alignment.center,
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child: AnimatedContainer(
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duration: Duration(milliseconds: 50),
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width: decibalWidth,
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height: decibalWidth,
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decoration: BoxDecoration(
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color: Colors.red,
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borderRadius: BorderRadius.circular(decibalWidth),
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),
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),
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),
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SizedBox(width: 8),
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Expanded(
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child: Text(
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'${L10n.of(context).recording}: $time',
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style: TextStyle(
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fontSize: 18,
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),
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),
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),
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],
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),
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actions: <Widget>[
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TextButton(
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onPressed: () => Navigator.of(context, rootNavigator: false).pop(),
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child: Text(
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L10n.of(context).cancel.toUpperCase(),
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style: TextStyle(
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color: Theme.of(context).textTheme.bodyText2.color.withAlpha(150),
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),
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),
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),
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TextButton(
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onPressed: () async {
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_recorderSubscription?.cancel();
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await Record.stop();
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Navigator.of(context, rootNavigator: false)
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.pop<String>(_recordedPath);
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},
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child: Row(
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children: <Widget>[
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Text(L10n.of(context).send.toUpperCase()),
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SizedBox(width: 4),
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Icon(Icons.send_outlined, size: 15),
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],
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),
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),
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],
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);
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}
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}
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