Android:没有找到这样的文件或目录错误?
问题描述:
我正在播放和录制音频,以便使用musicg API执行音频匹配分析。我收到以下错误/秒,每次我跑我的应用程序:Android:没有找到这样的文件或目录错误?
V/playRecordAudio: Playing sound & recording stopped
W/System.err: java.io.FileNotFoundException: /storage/emulated/0: open failed: EISDIR (Is a directory)
W/System.err: at libcore.io.IoBridge.open(IoBridge.java:452)
W/System.err: at java.io.FileOutputStream.<init>(FileOutputStream.java:87)
W/System.err: at java.io.FileOutputStream.<init>(FileOutputStream.java:127)
W/System.err: at java.io.FileOutputStream.<init>(FileOutputStream.java:116)
W/System.err: at com.android.project1.main.fragments.SpeakersFragment.copyWaveFile(SpeakersFragment.java:316)
W/System.err: at com.android.project1.main.fragments.SpeakersFragment.stopRecording(SpeakersFragment.java:284)
W/System.err: at com.android.project1.main.fragments.SpeakersFragment.access$200(SpeakersFragment.java:45)
W/System.err: at com.android.project1.main.fragments.SpeakersFragment$3.onCompletion(SpeakersFragment.java:176)
W/System.err: at android.media.MediaPlayer$EventHandler.handleMessage(MediaPlayer.java:2821)
W/System.err: at android.os.Handler.dispatchMessage(Handler.java:102)
W/System.err: at android.os.Looper.loop(Looper.java:148)
W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5417)
W/System.err: at java.lang.reflect.Method.invoke(Native Method)
W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
W/System.err: Caused by: android.system.ErrnoException: open failed: EISDIR (Is a directory)
W/System.err: at libcore.io.Posix.open(Native Method)
W/System.err: at libcore.io.BlockGuardOs.open(BlockGuardOs.java:186)
W/System.err: at libcore.io.IoBridge.open(IoBridge.java:438)
W/System.err: ... 14 more
W/System.err: java.io.FileNotFoundException: /storage/emulated/0/AudioRecorder/1491446370522.wav: open failed: ENOENT (No such file or directory)
W/System.err: at libcore.io.IoBridge.open(IoBridge.java:452)
W/System.err: at java.io.FileInputStream.<init>(FileInputStream.java:76)
W/System.err: at java.io.FileInputStream.<init>(FileInputStream.java:103)
W/System.err: at com.android.project1.main.fragments.SpeakersFragment.getScore(SpeakersFragment.java:399)
W/System.err: at com.android.project1.main.fragments.SpeakersFragment.stopRecording(SpeakersFragment.java:285)
W/System.err: at com.android.project1.main.fragments.SpeakersFragment.access$200(SpeakersFragment.java:45)
W/System.err: at com.android.project1.main.fragments.SpeakersFragment$3.onCompletion(SpeakersFragment.java:176)
W/System.err: at android.media.MediaPlayer$EventHandler.handleMessage(MediaPlayer.java:2821)
W/System.err: at android.os.Handler.dispatchMessage(Handler.java:102)
W/System.err: at android.os.Looper.loop(Looper.java:148)
W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5417)
W/System.err: at java.lang.reflect.Method.invoke(Native Method)
W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
W/System.err: Caused by: android.system.ErrnoException: open failed: ENOENT (No such file or directory)
W/System.err: at libcore.io.Posix.open(Native Method)
W/System.err: at libcore.io.BlockGuardOs.open(BlockGuardOs.java:186)
W/System.err: at libcore.io.IoBridge.open(IoBridge.java:438)
W/System.err: ... 13 more
I/System.out: 0.0
W/MediaPlayer: mediaplayer went away with unhandled events
我试图在记录保存到一个文件,然后把它传递给getScore()方法,以将其与原来的播放音频文件并返回匹配的分数。以下是我的MainActivity中的相关代码,其中以粗体显示错误的行。
编辑1:
String mFileName = getFilename();
...
private void stopRecording() {
if (null != recorder) {
isRecording = false;
int i = recorder.getState();
if (i == 1)
recorder.stop();
recorder.release();
recorder = null;
recordingThread = null;
}
copyWaveFile(getTempFilename(), mFileName);
getScore(); //error here
deleteTempFile();
}
public void getScore(){
String fileName1 = mFileName;
String fileName2 = "R.raw.forrest_gump_theme"; //Need to change this
try {
//InputStream fis1 = null, fis2 = null;
InputStream fis1, fis2;
fis1 = new FileInputStream(fileName1);//error here
fis2 = new FileInputStream(fileName2);
Wave wave1 = new Wave(fis1), wave2 = new Wave (fis2);
FingerprintSimilarity similarity;
similarity = wave1.getFingerprintSimilarity(wave2);
result = similarity.getSimilarity()*100;
}catch (Exception e){
e.printStackTrace();
}
System.out.println(result);
}
答
我认为这个问题是在copyWaveFile():
您正在使用下面的代码发送mFileName变量copyWaveFile(),但改变其路径:
outFilename = Environment.getExternalStorageDirectory().getPath();
尝试删除上面的行并再次检查。让我知道如果相同的错误仍然存在。
看看你如何在'getFilename()'中创建文件名。如果你每隔一毫秒调用两次,它将每次返回一个不同的文件名。另外,'“R.raw.forrest_gump_theme”'不会是一个有效的文件名。您无法像访问文件一样访问资源。 –
@MikeM。我的答案的第一部分不是100%清楚。我调用getFilename()两次(一次在getScore()中,一次在stopRecording中),是我的问题的根源?另外,如果我不能直接调用文件名,我该如何访问资源?可以请提供更多细节。 – Zack
您在文件名中使用'System.currentTimeMillis()'。如果当前时间改变,getFilename()返回的'String'也会改变。保存第一次调用返回的值。另外,你可以通过getResources()。openRawResource()''''''''''''''''''''''或者'Context'来调用原始资源的'InputStream'。 –