【发布时间】：2022-10-01 13:47:29
【问题描述】：
我在用 ：
- flutter_sound_lite 录制一些音频。
- 和 path_provider 来获取我手机的路径。
- permission_handler
我正在创建目录和具有指定路径的文件来放置我录制的音频。
我想知道我是没有找到它还是它没有被创建。
import \'dart:io\';
import \'dart:typed_data\';
import \'package:flutter_sound_lite/flutter_sound.dart\';
import \'package:flutter_sound_lite/public/flutter_sound_recorder.dart\';
import \'package:path_provider/path_provider.dart\';
import \'package:permission_handler/permission_handler.dart\';
class SoundRecorder {
FlutterSoundRecorder? _audioRecorder;
ModelApiShazam? modelApiShazam;
bool _isRecorderInitialised = false;
bool get isRecording => _audioRecorder!.isRecording;
Future init() async {
_audioRecorder = FlutterSoundRecorder();
final statusMic = await Permission.microphone.request();
if(statusMic != PermissionStatus.granted){
throw RecordingPermissionException(\'microphone permission\');
}
final statusStorage = await Permission.storage.status;
if (!statusStorage.isGranted) {
await Permission.storage.request();
}
await _audioRecorder!.openAudioSession();
directoryPath = await _directoryPath();
completePath = await _completePath(directoryPath);
_createDirectory();
_createFile();
_isRecorderInitialised = true;
}
void dispose(){
if(!_isRecorderInitialised) return;
_audioRecorder!.closeAudioSession();
_audioRecorder = null;
_isRecorderInitialised = false;
}
Future _record() async{
if(!_isRecorderInitialised) return;
print(\"Path where the file will be : \"+completePath);
await _audioRecorder!.startRecorder(
toFile: completePath,
numChannels : 1,
sampleRate: 44100,
);
}
Future _stop() async{
if(!_isRecorderInitialised) return;
var s = await _audioRecorder!.stopRecorder();
File f = File(completePath);
print(\"The created file : $f\");
}
Future toggleRecording() async{
if(_audioRecorder!.isStopped){
await _record();
}else{
await _stop();
}
}
String completePath = \"\";
String directoryPath = \"\";
Future<String> _completePath(String directory) async {
var fileName = _fileName();
return \"$directory$fileName\";
}
Future<String> _directoryPath() async {
var directory = await getApplicationDocumentsDirectory();
var directoryPath = directory.path;
return \"$directoryPath/records/\";
}
String _fileName() {
return \"record.wav\";
}
Future _createFile() async {
File(completePath)
.create(recursive: true)
.then((File file) async {
//write to file
Uint8List bytes = await file.readAsBytes();
file.writeAsBytes(bytes);
print(\"FILE CREATED AT : \"+file.path);
});
}
void _createDirectory() async {
bool isDirectoryCreated = await Directory(directoryPath).exists();
if (!isDirectoryCreated) {
Directory(directoryPath).create()
.then((Directory directory) {
print(\"DIRECTORY CREATED AT : \" +directory.path);
});
}
}
}
输出不包括 flutter_sound ：
I/flutter (20652): DIRECTORY CREATED AT : /data/user/0/com.example.shazam/app_flutter/records/
I/flutter (20652): FILE CREATED AT : /data/user/0/com.example.shazam/app_flutter/records/record.wav
我按下按钮开始录制...
I/flutter (20652): Path where the file will be : /data/user/0/com.example.shazam/app_flutter/records/record.wav
我按下按钮结束记录...
I/flutter (20652): The created file : File: \'/data/user/0/com.example.shazam/app_flutter/records/record.wav\'
即使我遵循路径，我也找不到此文件的位置
标签： android flutter dart audio