audio recorder android source code example using android studio

Hello Guys. Welcome to our new tutorial of audio recorder android source code example using android studio. using this source code you can create audio recording application .to be able to record audio using this application. MediaRecorder class will help you to record audio using your android device. please follow the code given below to record audio files in android.

• First Create a new project in Android Studio
• File ⇒ New Android ⇒ Application Project
• Then Open src -> package -> MainActivity.java and then add following code :

JAVA (MainActivity.java)

import android.content.pm.PackageManager;
import android.media.MediaPlayer;
import android.media.MediaRecorder;
import android.os.Environment;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import com.tutorial.personal.androidstudiopro.R;

import java.io.IOException;
import java.util.Random;

import static android.Manifest.permission.RECORD_AUDIO;
import static android.Manifest.permission.WRITE_EXTERNAL_STORAGE;


public class Recordingapp extends AppCompatActivity {

    Button buttonStart, buttonStop, buttonPlayLastRecordAudio,
            buttonStopPlayingRecording ;
    String AudioSavePathInDevice = null;
    MediaRecorder mediaRecorder ;
    Random random ;
    String RandomAudioFileName = "Androidstudiopro";
    public static final int RequestPermissionCode = 1;
    MediaPlayer mediaPlayer ;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_recordingapp);

        buttonStart = (Button) findViewById(R.id.button15);
        buttonStop = (Button) findViewById(R.id.button25);
        buttonPlayLastRecordAudio = (Button) findViewById(R.id.button35);
        buttonStopPlayingRecording = (Button)findViewById(R.id.button45);
        buttonStop.setEnabled(false);
        buttonPlayLastRecordAudio.setEnabled(false);
        buttonStopPlayingRecording.setEnabled(false);
        random = new Random();
        buttonStart.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if(checkPermission()) {
                    AudioSavePathInDevice =
                            Environment.getExternalStorageDirectory().getAbsolutePath() + "/" +
                                    CreateRandomAudioFileName(5) + "AudioRecording.3gp";
                    MediaRecorderReady();
                    try {
                        mediaRecorder.prepare();
                        mediaRecorder.start();
                    } catch (IllegalStateException e) {
                        e.printStackTrace();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                    buttonStart.setEnabled(false);
                    buttonStop.setEnabled(true);
                    Toast.makeText(Recordingapp.this, "Recording started",
                            Toast.LENGTH_LONG).show();
                } else {
                    requestPermission();
                }

            }
        });
        buttonStop.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mediaRecorder.stop();
                buttonStop.setEnabled(false);
                buttonPlayLastRecordAudio.setEnabled(true);
                buttonStart.setEnabled(true);
                buttonStopPlayingRecording.setEnabled(false);
                Toast.makeText(Recordingapp.this, "Recording Completed",
                        Toast.LENGTH_LONG).show();
            }
        });
        buttonPlayLastRecordAudio.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) throws IllegalArgumentException,
                    SecurityException, IllegalStateException {
                buttonStop.setEnabled(false);
                buttonStart.setEnabled(false);
                buttonStopPlayingRecording.setEnabled(true);
                mediaPlayer = new MediaPlayer();
                try {
                    mediaPlayer.setDataSource(AudioSavePathInDevice);
                    mediaPlayer.prepare();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                mediaPlayer.start();
                Toast.makeText(Recordingapp.this, "Recording Playing",
                        Toast.LENGTH_LONG).show();
            }
        });
        buttonStopPlayingRecording.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                buttonStop.setEnabled(false);
                buttonStart.setEnabled(true);
                buttonStopPlayingRecording.setEnabled(false);
                buttonPlayLastRecordAudio.setEnabled(true);
                if(mediaPlayer != null){
                    mediaPlayer.stop();
                    mediaPlayer.release();
                    MediaRecorderReady();
                }
            }
        });
    }
    public void MediaRecorderReady(){
        mediaRecorder=new MediaRecorder();
        mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
        mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
        mediaRecorder.setAudioEncoder(MediaRecorder.OutputFormat.AMR_NB);
        mediaRecorder.setOutputFile(AudioSavePathInDevice);
    }
    public String CreateRandomAudioFileName(int string){
        StringBuilder stringBuilder = new StringBuilder( string );
        int i = 0 ;
        while(i < string ) {
            stringBuilder.append(RandomAudioFileName.
                    charAt(random.nextInt(RandomAudioFileName.length())));
            i++ ;
        }
        return stringBuilder.toString();
    }
    private void requestPermission() {
        ActivityCompat.requestPermissions(Recordingapp.this, new
                String[]{WRITE_EXTERNAL_STORAGE, RECORD_AUDIO}, RequestPermissionCode);
    }
    @Override
    public void onRequestPermissionsResult(int requestCode,
                                           String permissions[], int[] grantResults) {
        switch (requestCode) {
            case RequestPermissionCode:
                if (grantResults.length> 0) {
                    boolean StoragePermission = grantResults[0] ==
                            PackageManager.PERMISSION_GRANTED;
                    boolean RecordPermission = grantResults[1] ==
                            PackageManager.PERMISSION_GRANTED;
                }
                break;
        }
    }
    public boolean checkPermission() {
        int result = ContextCompat.checkSelfPermission(getApplicationContext(),
                WRITE_EXTERNAL_STORAGE);
        int result1 = ContextCompat.checkSelfPermission(getApplicationContext(),
                RECORD_AUDIO);
        return result == PackageManager.PERMISSION_GRANTED &&
                result1 == PackageManager.PERMISSION_GRANTED;
    }
}

 

XML (activity_main.xml)

<android.support.constraint.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

    <Button
        android:id="@+id/button15"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/imageView"
        android:layout_alignParentLeft="true"
        android:layout_marginStart="8dp"
        android:layout_marginEnd="8dp"
        android:text="Start Record"
        app:layout_constraintBottom_toTopOf="@+id/button25"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <Button
        android:id="@+id/button25"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/button"
        android:layout_centerHorizontal="true"
        android:text="Stop Record"
        app:layout_constraintBottom_toTopOf="@+id/button35"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/button15" />

    <Button
        android:id="@+id/button35"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/button2"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:text="Play Record"
        app:layout_constraintBottom_toTopOf="@+id/button45"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/button25" />

    <Button
        android:id="@+id/button45"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/button2"
        android:layout_alignParentEnd="true"
        android:text="STOP PLAYING RECORDING "
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/button35" />
</android.support.constraint.ConstraintLayout>

Output:

Finally, run this project.

This is how the audio recorder app Clock look like.