Android - Jak zdobyć Uri z surowego pliku?
Próbuję zdobyćUri
z surowego pliku, który zawarłem w projekcie wraw
teczka. Ale dostajęFileNotFoundException
, nieważne co.
Plik to a.wav
plik, spróbowałem również z.mp4
, także nie działa. Odtwarzanie obu plików za pomocąMediaPlayer
Działa.
TheUri
zwraca:mark.dijkema.android.eindopdracht/2130968576
Mój kod:
package mark.dijkema.android.eindopdracht;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import android.app.Activity;
import android.media.AudioFormat;
import android.media.AudioManager;
import android.media.AudioTrack;
import android.net.Uri;
import android.os.Bundle;
public class MainActivity extends Activity
{
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
PlayWaveFile();
}
private void PlayWaveFile()
{
// define the buffer size for audio track
int minBufferSize = AudioTrack.getMinBufferSize(8000, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT);
int bufferSize = 512;
AudioTrack audioTrack = new AudioTrack(AudioManager.STREAM_VOICE_CALL, 8000, AudioFormat.CHANNEL_OUT_MONO,
AudioFormat.ENCODING_PCM_16BIT, minBufferSize, AudioTrack.MODE_STREAM);
Uri url = Uri.parse("android.resource://" + getPackageName() + "/" + R.raw.usa_for_africa_we_are_the_world);
File file = new File(url.toString());
int count = 0;
byte[] data = new byte[bufferSize];
try {
FileInputStream fileInputStream = new FileInputStream(file);
DataInputStream dataInputStream = new DataInputStream(fileInputStream);
audioTrack.play();
while((count = dataInputStream.read(data, 0, bufferSize)) > -1)
{
audioTrack.write(data, 0, count);
}
audioTrack.stop();
audioTrack.release();
dataInputStream.close();
fileInputStream.close();
}
catch (FileNotFoundException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
Błąd:
java.io.FileNotFoundException: /mark.dijkema.android.eindopdracht/2130968576: open failed: ENOENT (No such file or directory)