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En el código siguiente, mi objeto audioRecord no se está inicializando. Intenté moverlo al método onCreate y lo hice global. He registrado el estado y eso devuelve un valor de 1, lo que significa que está listo para usar. El depurador dice que se está llamando al startRecording en un objeto no inicializado. También dice que no pudo obtener la fuente de audio.Objeto AudioRecord que no se inicializa
¿Por qué me salen estos errores?
package com.tecmark;
import java.io.BufferedOutputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import android.app.Activity;
import android.media.AudioFormat;
import android.media.AudioRecord;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
public class recorder extends Activity {
private Thread thread;
private boolean isRecording;
private AudioRecord recorder;
private FileOutputStream os;
private BufferedOutputStream bos;
private DataOutputStream dos;
private TextView text;
private int audioSource = MediaRecorder.AudioSource.MIC;
private int sampleRate = 22050;
private int channel = AudioFormat.CHANNEL_CONFIGURATION_MONO;
private int encoding = AudioFormat.ENCODING_PCM_16BIT;
private int result = 0;
private int bufferSize;
private byte[] buffer;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Log.v("onCreate", "layout set, about to init audiorec obj");
text = (TextView)findViewById(R.id.TextView01);
bufferSize = AudioRecord.getMinBufferSize(sampleRate,channel,encoding);
buffer = new byte[bufferSize];
recorder = new AudioRecord(audioSource, sampleRate,channel,encoding,
AudioRecord.getMinBufferSize(sampleRate, channel,encoding));
Log.i("recorder obj state",""+recorder.getRecordingState());
}
public void onClickPlay(View v){
}
public void record(){
Log.i("inside record method", "******");
File path = Environment.getExternalStorageDirectory();
Log.v("file path", ""+path.getAbsolutePath());
File file = new File(path, "test.wav");
if(file.exists()){
file.delete();
}
path.mkdirs();
Log.v("file path", ""+file.getAbsolutePath());
try {
os = new FileOutputStream(file);
bos = new BufferedOutputStream(os);
dos = new DataOutputStream(bos);
} catch (Exception e1) {
e1.printStackTrace();
}
int bufferSize = AudioRecord.getMinBufferSize(sampleRate,channel,encoding);
byte[] buffer = new byte[bufferSize];
recorder.startRecording();
isRecording = true;
try{
while (isRecording){
result = recorder.read(buffer, 0, bufferSize);
for(int a=0; a<result;a++){
dos.write(buffer[a]);
if(!isRecording){
recorder.stop();
break;
}
}
}
dos.flush();
dos.close();
}catch(Exception e){
e.printStackTrace();
}
}// end of record method
public void onClickStop(View v){
Log.v("onClickStop", "stop clicked");
isRecording=false;
}
public void onClickReverse(View v){
Log.v("onClickReverse", "reverse clicked");
}
public void onClickRecord(View v){
Log.v("onClickRecourd", "record clicked, thread gona start");
text.setText("recording");
thread = new Thread(new Runnable() {
public void run() {
isRecording = true;
record();
}
});
thread.start();
isRecording = false;
}
}//end of class
Logcat
01-30 15:23:16.724: ERROR/AudioRecord(12817): Could not get audio input for record source 1 01-30 15:23:16.729:
ERROR/AudioRecord-JNI(12817): Error creating AudioRecord instance: initialization check failed. 01-30 15:23:16.729:
ERROR/AudioRecord-Java(12817): [ android.media.AudioRecord ] Error code
-20 when initializing native AudioRecord object. 01-30 15:23:16.729: INFO/recorder obj state(12817): 1 01-30 15:23:16.729:
WARN/dalvikvm(12817): threadid=13: thread exiting with uncaught exception (group=0x4001b180) 01-30 15:23:16.729:
ERROR/AndroidRuntime(12817): Uncaught handler: thread Thread-7 exiting due to uncaught exception 01-30 15:23:16.739:
ERROR/AndroidRuntime(12817): java.lang.IllegalStateException: startRecording() called on an uninitialized AudioRecord. 01-30 15:23:16.739:
ERROR/AndroidRuntime(12817): at android.media.AudioRecord.startRecording(AudioRecord.java:495) 01-30 15:23:16.739:
ERROR/AndroidRuntime(12817): at com.tecmark.recorder.record(recorder.java:114) 01-30 15:23:16.739:
ERROR/AndroidRuntime(12817): at com.tecmark.recorder$1.run(recorder.java:175) 01-30 15:23:16.739:
ERROR/AndroidRuntime(12817): at java.lang.Thread.run(Thread.java:1096)
use recorder.getState() para obtener el estado correcto – Tom
Después de reiniciar mi dispositivo (que el micrófono no está funcionando después de intentar una configuración de inicialización incorrecta, para comprobar si se ha ingresado o no, probando con micrófono será fácil), luego probé el método de inicialización try-all-the-combination ¡y funciona! gracias! – WTing