将音频文件保存到android中的特定文件夹中

Question

public class FragmentRecording extends Fragment {
private MediaRecorder recorder;
private String OUTPUT_FILE;
FloatingActionButton stop_fab;
@Override
public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState){
    View view=inflater.inflate(R.layout.fragment_recording, container,false);
    stop_fab=(FloatingActionButton)view.findViewById(R.id.stop_fab_xml);
    //SALIDA DEL ARCHIVO
    OUTPUT_FILE=Environment.getExternalStorageDirectory()+"/VoiceRecorder.3gpp";

    //GENERAMOS UN METODO PARA SABER LIBERAR EL MICROFONO
    LiberarMicro();
    //Crea el archivo
    File outfile=new File(OUTPUT_FILE);
    //Si existe lo borra
    if(outfile.exists()){
        outfile.delete();
    }
    //Empieza Proceso de Grabacion
    try {
        StartRecord();
    } catch (IllegalStateException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    stop_fab.setOnClickListener(new OnClickListener(){

        @Override
        public void onClick(View arg0) {
            // TODO Auto-generated method stub
            StopRecord();
        }

    });


    return view;}



protected void StopRecord() {
    // TODO Auto-generated method stub
    if(recorder!=null){
        recorder.stop();
    }
}



private void StartRecord() throws IllegalStateException, IOException {
    // TODO Auto-generated method stub
    recorder=new MediaRecorder();
    recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
    recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
    recorder.setOutputFile(OUTPUT_FILE);

    recorder.prepare();

    recorder.start();
}

private void LiberarMicro() {
    // TODO Auto-generated method stub
        if(recorder!=null){
            recorder.release();
        }

}}

Answer 1

File f = new File(Environment.getExternalStorageDirectory() + "/somedir");
if(f.isDirectory()) {
        //Write code for the folder exist condition

}else{

        // create a File object for the parent directory
        File wallpaperDirectory = new File("/sdcard/Wallpaper/");
        // have the object build the directory structure, if needed.
        wallpaperDirectory.mkdirs();
       // create a File object for the output file
       File outputFile = new File(wallpaperDirectory, filename);
       // now attach the OutputStream to the file object, instead of a String representation
       FileOutputStream fos = new FileOutputStream(outputFile);

}

上面的代码将检查wheather文件夹是否存在。如果没有，创建一个文件夹，并将文件保存到该文件夹。

您需要在清单中提供以下权限

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

如果你有困惑就告诉我。如果我帮忙，请投票：）快乐的编码