audio_waveforms 1.0.5
audio_waveforms: ^1.0.5 copied to clipboard
A Flutter package that allow you to generate waveform while recording audio or from audio file.
import 'dart:io';
import 'package:audio_waveforms/audio_waveforms.dart';
import 'package:audio_waveforms_example/chat_bubble.dart';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';
import 'package:path_provider/path_provider.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return const MaterialApp(
title: 'Audio Waveforms',
debugShowCheckedModeBanner: false,
home: Home(),
);
}
}
class Home extends StatefulWidget {
const Home({Key? key}) : super(key: key);
@override
State<Home> createState() => _HomeState();
}
class _HomeState extends State<Home> {
late final RecorderController recorderController;
String? path;
String? musicFile;
bool isRecording = false;
bool isRecordingCompleted = false;
bool isLoading = true;
late Directory appDirectory;
@override
void initState() {
super.initState();
_getDir();
_initialiseControllers();
}
void _getDir() async {
appDirectory = await getApplicationDocumentsDirectory();
path = "${appDirectory.path}/recording.m4a";
isLoading = false;
setState(() {});
}
void _initialiseControllers() {
recorderController = RecorderController()
..androidEncoder = AndroidEncoder.aac
..androidOutputFormat = AndroidOutputFormat.mpeg4
..iosEncoder = IosEncoder.kAudioFormatMPEG4AAC
..sampleRate = 44100;
}
void _pickFile() async {
FilePickerResult? result = await FilePicker.platform.pickFiles();
if (result != null) {
musicFile = result.files.single.path;
setState(() {});
} else {
debugPrint("File not picked");
}
}
@override
void dispose() {
recorderController.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: const Color(0xFF252331),
appBar: AppBar(
backgroundColor: const Color(0xFF252331),
elevation: 1,
centerTitle: true,
shadowColor: Colors.grey,
title: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Image.asset(
'assets/images/logo.png',
scale: 1.5,
),
const SizedBox(width: 10),
const Text('Simform'),
],
),
),
body: isLoading
? const Center(
child: CircularProgressIndicator(),
)
: SafeArea(
child: Column(
children: [
const SizedBox(height: 20),
Expanded(
child: ListView.builder(
itemCount: 4,
itemBuilder: (_, index) {
return WaveBubble(
index: index + 1,
isSender: index.isOdd,
width: MediaQuery.of(context).size.width / 2,
appDirectory: appDirectory,
);
},
),
),
if (isRecordingCompleted)
WaveBubble(
path: path,
isSender: true,
appDirectory: appDirectory,
),
if (musicFile != null)
WaveBubble(
path: musicFile,
isSender: true,
appDirectory: appDirectory,
),
SafeArea(
child: Row(
children: [
AnimatedSwitcher(
duration: const Duration(milliseconds: 200),
child: isRecording
? AudioWaveforms(
enableGesture: true,
size: Size(
MediaQuery.of(context).size.width / 2,
50),
recorderController: recorderController,
waveStyle: const WaveStyle(
waveColor: Colors.white,
extendWaveform: true,
showMiddleLine: false,
),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(12.0),
color: const Color(0xFF1E1B26),
),
padding: const EdgeInsets.only(left: 18),
margin: const EdgeInsets.symmetric(
horizontal: 15),
)
: Container(
width:
MediaQuery.of(context).size.width / 1.7,
height: 50,
decoration: BoxDecoration(
color: const Color(0xFF1E1B26),
borderRadius: BorderRadius.circular(12.0),
),
padding: const EdgeInsets.only(left: 18),
margin: const EdgeInsets.symmetric(
horizontal: 15),
child: TextField(
readOnly: true,
decoration: InputDecoration(
hintText: "Type Something...",
hintStyle: const TextStyle(
color: Colors.white54),
contentPadding:
const EdgeInsets.only(top: 16),
border: InputBorder.none,
suffixIcon: IconButton(
onPressed: _pickFile,
icon: Icon(Icons.adaptive.share),
color: Colors.white54,
),
),
),
),
),
IconButton(
onPressed: _refreshWave,
icon: Icon(
isRecording ? Icons.refresh : Icons.send,
color: Colors.white,
),
),
const SizedBox(width: 16),
IconButton(
onPressed: _startOrStopRecording,
icon: Icon(isRecording ? Icons.stop : Icons.mic),
color: Colors.white,
iconSize: 28,
),
],
),
),
],
),
),
);
}
void _startOrStopRecording() async {
try {
if (isRecording) {
recorderController.reset();
path = await recorderController.stop(false);
if (path != null) {
isRecordingCompleted = true;
debugPrint(path);
debugPrint("Recorded file size: ${File(path!).lengthSync()}");
}
} else {
await recorderController.record(path: path); // Path is optional
}
} catch (e) {
debugPrint(e.toString());
} finally {
setState(() {
isRecording = !isRecording;
});
}
}
void _refreshWave() {
if (isRecording) recorderController.refresh();
}
}