Creating Audio Recorder in Android

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Hello Friends, Today I am going to share audio recording code in android. This code will work on latest version of android (Marshmallow) also. In this code we are going to use MediaRecorder class to record audio and MediaPlayer class to play recorded audio.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.zatackcoder.audiorecorder.MainActivity">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Notification goes here.."
        android:textAlignment="center"
        android:id="@+id/notificationTV" />
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Record"
        android:id="@+id/startB"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="170dp" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Stop"
        android:id="@+id/stopB"
        android:layout_below="@+id/startB"
        android:layout_alignLeft="@+id/startB"
        android:layout_alignStart="@+id/startB" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Play"
        android:id="@+id/playB"
        android:layout_below="@+id/stopB"
        android:layout_centerHorizontal="true" />
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:paddingBottom="@dimen/activity_vertical_margin"

android:paddingLeft="@dimen/activity_horizontal_margin"

android:paddingRight="@dimen/activity_horizontal_margin"

android:paddingTop="@dimen/activity_vertical_margin"

tools:context="com.zatackcoder.audiorecorder.MainActivity">

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="Notification goes here.."

android:textAlignment="center"

android:id="@+id/notificationTV" />

<Button

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Record"

android:id="@+id/startB"

android:layout_alignParentTop="true"

android:layout_centerHorizontal="true"

android:layout_marginTop="170dp" />

<Button

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Stop"

android:id="@+id/stopB"

android:layout_below="@+id/startB"

android:layout_alignLeft="@+id/startB"

android:layout_alignStart="@+id/startB" />

<Button

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Play"

android:id="@+id/playB"

android:layout_below="@+id/stopB"

android:layout_centerHorizontal="true" />

</RelativeLayout>

MainActivity.java

package com.zatackcoder.audiorecorder;

import android.Manifest;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.media.MediaPlayer;
import android.media.MediaRecorder;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import java.io.File;
import java.io.IOException;

public class MainActivity extends AppCompatActivity implements ActivityCompat.OnRequestPermissionsResultCallback {

    TextView notificationTV;
    Button startB;
    Button stopB;
    Button playB;
    MediaRecorder recorder;
    File audiofile;
    Boolean recording = false;

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

        notificationTV = (TextView)findViewById(R.id.notificationTV);
        startB = (Button)findViewById(R.id.startB);
        stopB = (Button)findViewById(R.id.stopB);
        playB = (Button)findViewById(R.id.playB);

        startB.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                if(recording){
                    Toast.makeText(getApplicationContext(), "Already recording stop first", Toast.LENGTH_LONG).show();
                    return;
                }
                recorder = new MediaRecorder();
                try {
                    audiofile = File.createTempFile("sound", ".amr", Environment.getExternalStorageDirectory());
                } catch (IOException e) {
                    e.printStackTrace();
                }
                recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
                recorder.setOutputFormat(MediaRecorder.OutputFormat.AMR_NB);
                recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
                recorder.setOutputFile(audiofile.getAbsolutePath());
                Toast.makeText(getApplicationContext(), audiofile.getAbsolutePath(), Toast.LENGTH_LONG).show();
                try {
                    recorder.prepare();
                } catch (IOException e) {
                    e.printStackTrace();
                    Toast.makeText(getApplicationContext(), e.toString(), Toast.LENGTH_LONG).show();
                    return;
                }
                recorder.start();   // Recording is now started
                recording = true;
                notificationTV.setText("Recording...");
                Toast.makeText(getApplicationContext(), "Recording started!", Toast.LENGTH_LONG).show();
            }
        });

        stopB.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                if(!recording){
                    Toast.makeText(getApplicationContext(), "Recording not started yet!", Toast.LENGTH_LONG).show();
                    return;
                }
                recorder.stop();
                recorder.reset();   // You can reuse the object by going back to setAudioSource() step
                recorder.release(); // Now the object cannot be reused
                recording = false;
                notificationTV.setText("Recording stopped!");
                Toast.makeText(getApplicationContext(), "Recording stopped!", Toast.LENGTH_LONG).show();
                addRecordingToMediaLibrary();
            }
        });

        playB.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(audiofile == null){
                    Toast.makeText(getApplicationContext(), "Not recorded yet!", Toast.LENGTH_LONG).show();
                    return;
                }
                MediaPlayer mp=new MediaPlayer();
                try{
                    mp.setDataSource(audiofile.getAbsolutePath());//Write your location here
                    mp.prepare();
                    mp.start();
                }catch(Exception e){
                    Toast.makeText(getApplicationContext(), "Problem occurred while playing!", Toast.LENGTH_LONG).show();
                }
            }
        });

        getExternalStorageWritePermission();
        getAudioRecordPermission();
    }

    protected void addRecordingToMediaLibrary() {
        //creating content values of size 4
        ContentValues values = new ContentValues(4);
        long current = System.currentTimeMillis();
        values.put(MediaStore.Audio.Media.TITLE, audiofile.getName());
        values.put(MediaStore.Audio.Media.DATE_ADDED, (int) (current / 1000));
        values.put(MediaStore.Audio.Media.MIME_TYPE, "audio/amr");
        values.put(MediaStore.Audio.Media.DATA, audiofile.getAbsolutePath());

        //creating content resolver and storing it in the external content uri
        ContentResolver contentResolver = getContentResolver();
        Uri base = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
        Uri newUri = contentResolver.insert(base, values);

        //sending broadcast message to scan the media file so that it can be available
        sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, newUri));
        Toast.makeText(this, "File Added to Media Library" + newUri, Toast.LENGTH_LONG).show();
    }

    private void getExternalStorageWritePermission(){
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if(checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED){
                // Should we show an explanation?
                if (shouldShowRequestPermissionRationale(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
                } else {
                    //Requesting permission.
                    ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
                }

            }
        }
    }

    private void getAudioRecordPermission(){
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if(checkSelfPermission(Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED){
                // Should we show an explanation?
                if (shouldShowRequestPermissionRationale(Manifest.permission.RECORD_AUDIO)) {
                } else {
                    //Requesting permission.
                    ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.RECORD_AUDIO}, 1);
                }

            }
        }
    }

    @Override //Override from ActivityCompat.OnRequestPermissionsResultCallback Interface
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        switch (requestCode) {
            case 1: {
                // If request is cancelled, the result arrays are empty.
                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    // permission granted
                }
                return;
            }
        }
    }
}

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package com.zatackcoder.audiorecorder;

import android.Manifest;

import android.content.ContentResolver;

import android.content.ContentValues;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.media.MediaPlayer;

import android.media.MediaRecorder;

import android.net.Uri;

import android.os.Build;

import android.os.Environment;

import android.provider.MediaStore;

import android.support.v4.app.ActivityCompat;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;

import android.widget.Toast;

import java.io.File;

import java.io.IOException;

public class MainActivity extends AppCompatActivity implements ActivityCompat.OnRequestPermissionsResultCallback {

TextView notificationTV;

Button startB;

Button stopB;

Button playB;

MediaRecorder recorder;

File audiofile;

Boolean recording = false;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

notificationTV = (TextView)findViewById(R.id.notificationTV);

startB = (Button)findViewById(R.id.startB);

stopB = (Button)findViewById(R.id.stopB);

playB = (Button)findViewById(R.id.playB);

startB.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

if(recording){

Toast.makeText(getApplicationContext(), "Already recording stop first", Toast.LENGTH_LONG).show();

return;

}

recorder = new MediaRecorder();

try {

audiofile = File.createTempFile("sound", ".amr", Environment.getExternalStorageDirectory());

} catch (IOException e) {

e.printStackTrace();

}

recorder.setAudioSource(MediaRecorder.AudioSource.MIC);

recorder.setOutputFormat(MediaRecorder.OutputFormat.AMR_NB);

recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

recorder.setOutputFile(audiofile.getAbsolutePath());

Toast.makeText(getApplicationContext(), audiofile.getAbsolutePath(), Toast.LENGTH_LONG).show();

try {

recorder.prepare();

} catch (IOException e) {

e.printStackTrace();

Toast.makeText(getApplicationContext(), e.toString(), Toast.LENGTH_LONG).show();

return;

}

recorder.start(); // Recording is now started

recording = true;

notificationTV.setText("Recording...");

Toast.makeText(getApplicationContext(), "Recording started!", Toast.LENGTH_LONG).show();

}

});

stopB.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

if(!recording){

Toast.makeText(getApplicationContext(), "Recording not started yet!", Toast.LENGTH_LONG).show();

return;

}

recorder.stop();

recorder.reset(); // You can reuse the object by going back to setAudioSource() step

recorder.release(); // Now the object cannot be reused

recording = false;

notificationTV.setText("Recording stopped!");

Toast.makeText(getApplicationContext(), "Recording stopped!", Toast.LENGTH_LONG).show();

addRecordingToMediaLibrary();

}

});

playB.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

if(audiofile == null){

Toast.makeText(getApplicationContext(), "Not recorded yet!", Toast.LENGTH_LONG).show();

return;

}

MediaPlayer mp=new MediaPlayer();

try{

mp.setDataSource(audiofile.getAbsolutePath());//Write your location here

mp.prepare();

mp.start();

}catch(Exception e){

Toast.makeText(getApplicationContext(), "Problem occurred while playing!", Toast.LENGTH_LONG).show();

}

});

getExternalStorageWritePermission();

getAudioRecordPermission();

}

protected void addRecordingToMediaLibrary() {

//creating content values of size 4

ContentValues values = new ContentValues(4);

long current = System.currentTimeMillis();

values.put(MediaStore.Audio.Media.TITLE, audiofile.getName());

values.put(MediaStore.Audio.Media.DATE_ADDED, (int) (current / 1000));

values.put(MediaStore.Audio.Media.MIME_TYPE, "audio/amr");

values.put(MediaStore.Audio.Media.DATA, audiofile.getAbsolutePath());

//creating content resolver and storing it in the external content uri

ContentResolver contentResolver = getContentResolver();

Uri base = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;

Uri newUri = contentResolver.insert(base, values);

//sending broadcast message to scan the media file so that it can be available

sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, newUri));

Toast.makeText(this, "File Added to Media Library" + newUri, Toast.LENGTH_LONG).show();

}

private void getExternalStorageWritePermission(){

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {

if(checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED){

// Should we show an explanation?

if (shouldShowRequestPermissionRationale(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {

} else {

//Requesting permission.

ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);

}

private void getAudioRecordPermission(){

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {

if(checkSelfPermission(Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED){

// Should we show an explanation?

if (shouldShowRequestPermissionRationale(Manifest.permission.RECORD_AUDIO)) {

} else {

//Requesting permission.

ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.RECORD_AUDIO}, 1);

}

@Override //Override from ActivityCompat.OnRequestPermissionsResultCallback Interface

public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {

switch (requestCode) {

case 1: {

// If request is cancelled, the result arrays are empty.

if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

// permission granted

}

return;

}

Screen Shot

Download Android Studio Project

AudioRecorder

1 file(s) 6.96 MB

Download

Creating Audio Recorder in Android

activity_main.xml

MainActivity.java

Screen Shot

Download Android Studio Project

AudioRecorder

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