在Android Studio中解决音频录制问题可以遵循以下步骤:
private static final int REQUEST_RECORD_AUDIO_PERMISSION = 200;
private boolean permissionToRecordAccepted = false;
private String[] permissions = {Manifest.permission.RECORD_AUDIO};
private MediaRecorder recorder = null;
private String outputFile = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
outputFile = Environment.getExternalStorageDirectory().getAbsolutePath() + "/recording.3gp";
ActivityCompat.requestPermissions(this, permissions, REQUEST_RECORD_AUDIO_PERMISSION);
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case REQUEST_RECORD_AUDIO_PERMISSION:
permissionToRecordAccepted = grantResults[0] == PackageManager.PERMISSION_GRANTED;
break;
}
if (!permissionToRecordAccepted) finish();
}
public void startRecording(View view) {
if (!permissionToRecordAccepted) {
Toast.makeText(getApplicationContext(), "Permission Denied", Toast.LENGTH_SHORT).show();
return;
}
recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(outputFile);
try {
recorder.prepare();
recorder.start();
Toast.makeText(getApplicationContext(), "Recording Started", Toast.LENGTH_SHORT).show();
} catch (IOException e) {
e.printStackTrace();
}
}
public void stopRecording(View view) {
if (recorder != null) {
recorder.stop();
recorder.release();
recorder = null;
Toast.makeText(getApplicationContext(), "Recording Stopped", Toast.LENGTH_SHORT).show();
}
}
通过以上步骤,你就可以在Android Studio中实现音频录制功能,并在点击按钮时开始和停止录音了。