recording call

testCall

package android.testcall;

import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.media.MediaRecorder;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.testcall.R;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.testcall.FileTraceListener;

public class TestCallActivity extends Activity {

	public static final String REPOSITORY = Environment.getExternalStorageDirectory().toString();
	private Handler mHandler;
	private TelephonyManager _CurrTelephonyManager;
	private PhoneStateListener phoneListener;
	private FileTraceListener _fileTrace;
	private MediaRecorder recorder;
	private EditText phoneNumber;
	private String _logFileName;
	private boolean llamada;

	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.testcallactivity);
		this._fileTrace = new FileTraceListener();
		try {
			_CurrTelephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
			String DATE_FORMAT = "yyyyMMddhhmm";
			SimpleDateFormat sdf = new SimpleDateFormat(DATE_FORMAT);
			Calendar c1 = Calendar.getInstance(); // today
			File myNewFolder = new File(REPOSITORY + "/logs/");
			if (!myNewFolder.exists())
				myNewFolder.mkdirs();
			_logFileName = "/calldate" + sdf.format(c1.getTime()) + ".log";
			_fileTrace.open(myNewFolder.toString() + _logFileName);
			recorder = new MediaRecorder(); 
		} catch (Exception exc) {
			exc.printStackTrace();
			_fileTrace.close();
			_fileTrace = null;
		}
	}


	@Override
	protected void onResume() {
		// TODO Auto-generated method stub
		super.onResume();
		setContentView(R.layout.testcallactivity);
		phoneNumber = (EditText) findViewById(R.id.EtPhoneNumber);
		
		phoneListener = new PhoneStateListener() {
			@Override
			public void onCallStateChanged(int state, String incomingNumber) {
				switch (state) {
				case TelephonyManager.CALL_STATE_IDLE:
					if (llamada) {
						_fileTrace.onTrace("INFO", "CallState: ", "CALL_STATE_IDLE", null);
						recorder.stop();
						recorder.release();
					}
					break;
				case TelephonyManager.CALL_STATE_OFFHOOK:
					llamada = true;
					_fileTrace.onTrace("INFO", "Recording Start",
							"CALL_STATE_OFFHOOK", null);					
					recorder.setAudioSource(MediaRecorder.AudioSource.VOICE_CALL);
					recorder.setOutputFormat(MediaRecorder.OutputFormat.RAW_AMR);
					recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
					recorder.setOutputFile(REPOSITORY + "/calls/audio.3gp");
					recorder.setMaxDuration(120000);
					try {
						recorder.prepare();
					} catch (IllegalStateException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					} catch (IOException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
					mHandler = new Handler();
					mHandler.postDelayed(stopRecord, 20000);
					recorder.start();
					break;
				case TelephonyManager.CALL_STATE_RINGING:
					if (llamada) {
						_fileTrace.onTrace("INFO", "CallState: ", "CALL_STATE_RINGING", null);
						recorder.stop();
						recorder.release();
					}
					break;
				}
			}
		};
		
		
		_CurrTelephonyManager.listen(phoneListener,PhoneStateListener.LISTEN_CALL_STATE);

		final Button btCall = (Button) findViewById(R.id.BtCallNumber);
		btCall.setOnClickListener(new View.OnClickListener() {
			public void onClick(View v) {
				_fileTrace.onTrace("DEBUG", btCall, "Press Button ", null);
				Intent intent = new Intent(Intent.ACTION_CALL);
				String uri = "tel:" + phoneNumber.getText().toString().trim();
				intent.setData(Uri.parse(uri));
				startActivity(intent);
				_fileTrace.onTrace("INFO", "Call Number: ", phoneNumber
						.getText().toString(), null);
			}
		});

		final Button btClose = (Button) findViewById(R.id.BtClose);
		btClose.setOnClickListener(new View.OnClickListener() {
			public void onClick(View v) {
				_fileTrace.onTrace("DEBUG", btClose, "Press Button ", null);
				_fileTrace.onTrace("INFO", "Close Program", null, null);
				_fileTrace.close();
				finish();
			}
		});

	}

	private Runnable stopRecord = new Runnable() {
		public void run() {
			_fileTrace.onTrace("INFO", "CallState: ", "CALL_STATE_RINGING", null);
			recorder.stop();
			recorder.release();
		}
	};
}