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Monday, July 23, 2012

How to record an audio in android and email it as attachment?

This example shows how to record an audio in android and save it in your path and send it as an email attachment.
This example is taken from the developers website.
Note : You should run this on the device otherwise it will not work.
This example will open up an email client after recording and attach it to the email client.
Remember that your device should have the email client application and you should be logged in otherwise you will get the error as “No Application can perform this action

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package pack.coderzheaven;
 
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.media.MediaPlayer;
import android.media.MediaRecorder;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.LinearLayout;
 
 
public class AudioCaptureDemo extends Activity
{
    private static final String LOG_TAG = "AudioCaptureDemo";
    private static String mFileName = null;
 
    private RecordButton mRecordButton = null;
    private MediaRecorder mRecorder = null;
 
    private PlayButton   mPlayButton = null;
    private MediaPlayer   mPlayer = null;
 
    private void onRecord(boolean start) {
        if (start) {
            startRecording();
        } else {
            stopRecording();
        }
    }
 
    private void onPlay(boolean start) {
        if (start) {
            startPlaying();
        } else {
            stopPlaying();
        }
    }
 
    private void startPlaying() {
        mPlayer = new MediaPlayer();
        try {
            mPlayer.setDataSource(mFileName);
            mPlayer.prepare();
            mPlayer.start();
        } catch (IOException e) {
            Log.e(LOG_TAG, "prepare() failed");
        }
    }
 
    private void stopPlaying() {
        mPlayer.release();
        mPlayer = null;
    }
 
    private void startRecording() {
        mRecorder = new MediaRecorder();
        mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
        mRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
        mRecorder.setOutputFile(mFileName);
        mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
 
        try {
            mRecorder.prepare();
        } catch (IOException e) {
            Log.e(LOG_TAG, "prepare() failed");
        }
 
        mRecorder.start();
    }
 
    private void stopRecording() {
        mRecorder.stop();
        mRecorder.release();
        mRecorder = null;
        ArrayList<String> uris = new ArrayList<String>();
        mFileName = Environment.getExternalStorageDirectory().getAbsolutePath();
        mFileName += "/audiorecordtest.3gp";
        uris.add(mFileName);
        email(AudioCaptureDemo.this,"test@test.com","test@test.com","No Subject","Sample Email text",uris);
 
    }
 
    public static void email(Context context, String emailTo, String emailCC,
            String subject, String emailText, List<String> filePaths)
        {
            //need to "send multiple" to get more than one attachment
            final Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND_MULTIPLE);
            emailIntent.setType("plain/text");
            emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL,
                new String[]{emailTo});
            emailIntent.putExtra(android.content.Intent.EXTRA_CC,
                new String[]{emailCC});
            //has to be an ArrayList
            ArrayList<Uri> uris = new ArrayList<Uri>();
            //convert from paths to Android friendly Parcelable Uri's
            for (String file : filePaths)
            {
                File fileIn = new File(file);
                Uri u = Uri.fromFile(fileIn);
                uris.add(u);
            }
            emailIntent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris);
            context.startActivity(Intent.createChooser(emailIntent, "Send mail..."));
    }
 
    class RecordButton extends Button {
        boolean mStartRecording = true;
 
        OnClickListener clicker = new OnClickListener() {
            public void onClick(View v) {
                onRecord(mStartRecording);
                if (mStartRecording) {
                    setText("Stop recording");
                } else {
                    setText("Start recording");
                }
                mStartRecording = !mStartRecording;
            }
        };
 
        public RecordButton(Context ctx) {
            super(ctx);
            setText("Start recording");
            setOnClickListener(clicker);
        }
    }
 
    class PlayButton extends Button {
        boolean mStartPlaying = true;
 
        OnClickListener clicker = new OnClickListener() {
            public void onClick(View v) {
                onPlay(mStartPlaying);
                if (mStartPlaying) {
                    setText("Stop playing");
                } else {
                    setText("Start playing");
                }
                mStartPlaying = !mStartPlaying;
            }
        };
 
        public PlayButton(Context ctx) {
            super(ctx);
            setText("Start playing");
            setOnClickListener(clicker);
        }
    }
 
    public AudioCaptureDemo() {
        mFileName = Environment.getExternalStorageDirectory().getAbsolutePath();
        mFileName += "/audiorecordtest.3gp";
    }
 
    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
 
        LinearLayout ll = new LinearLayout(this);
        mRecordButton = new RecordButton(this);
        ll.addView(mRecordButton,
            new LinearLayout.LayoutParams(
                ViewGroup.LayoutParams.WRAP_CONTENT,
                ViewGroup.LayoutParams.WRAP_CONTENT,
                0));
        mPlayButton = new PlayButton(this);
        ll.addView(mPlayButton,
            new LinearLayout.LayoutParams(
                ViewGroup.LayoutParams.WRAP_CONTENT,
                ViewGroup.LayoutParams.WRAP_CONTENT,
                0));
        setContentView(ll);
    }
 
    @Override
    public void onPause() {
        super.onPause();
        if (mRecorder != null) {
            mRecorder.release();
            mRecorder = null;
        }
 
        if (mPlayer != null) {
            mPlayer.release();
            mPlayer = null;
        }
    }
}
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Enjoy……….

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