Android MediaRecorder Example

MediaRecorder class can be used to record audio and video files.

After recording the media, we can create a sound file that can be played later.

In this example, we are going to record the audio file and storing it in the external directory in 3gp format.

activity_main.xml

Drag 2 buttons from the pallete, one to start the recording and another stop the recording. Here, we are registering the view with the listener in xml file using android:onClick.

File: activity_main.xml

 <RelativeLayout xmlns:androclass=”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=”.MainActivity” >      <Button         android:id=”@+id/button1″         android:layout_width=”wrap_content”         android:layout_height=”wrap_content”         android:layout_alignParentLeft=”true”         android:layout_alignParentTop=”true”         android:layout_marginLeft=”68dp”         android:layout_marginTop=”50dp”         android:text=”Start Recording”         android:onClick=”startRecording”          />      <Button         android:id=”@+id/button2″         android:layout_width=”wrap_content”         android:layout_height=”wrap_content”         android:layout_alignLeft=”@+id/button1″         android:layout_below=”@+id/button1″         android:layout_marginTop=”64dp”         android:text=”Stop Recording”          android:onClick=”stopRecording”         />  </RelativeLayout> 

Activity class

File: MainActivity.java

 package com.tutoraspire.mediarecorder; import java.io.File; import java.io.IOException; import android.app.Activity; import android.content.ContentResolver; import android.content.ContentValues; import android.content.Intent; import android.media.MediaRecorder; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.provider.MediaStore; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.Toast;  public class MainActivity extends Activity {   MediaRecorder recorder;   File audiofile = null;   static final String TAG = “MediaRecording”;   Button startButton,stopButton;    @Override   public void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.activity_main);     startButton = (Button) findViewById(R.id.button1);     stopButton = (Button) findViewById(R.id.button2);   }    public void startRecording(View view) throws IOException {     startButton.setEnabled(false);     stopButton.setEnabled(true);             //Creating file     File dir = Environment.getExternalStorageDirectory();     try {       audiofile = File.createTempFile(“sound”, “.3gp”, dir);     } catch (IOException e) {       Log.e(TAG, “external storage access error”);       return;     }             //Creating MediaRecorder and specifying audio source, output format, encoder & output format     recorder = new MediaRecorder();     recorder.setAudioSource(MediaRecorder.AudioSource.MIC);     recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);     recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);     recorder.setOutputFile(audiofile.getAbsolutePath());     recorder.prepare();     recorder.start();   }    public void stopRecording(View view) {     startButton.setEnabled(true);     stopButton.setEnabled(false);             //stopping recorder     recorder.stop();     recorder.release();            //after stopping the recorder, create the sound file and add it to media library.     addRecordingToMediaLibrary();   }    protected void addRecordingToMediaLibrary() {             //creating content values of size 4     ContentValues values = new ContentValues(4);     long current = System.currentTimeMillis();     values.put(MediaStore.Audio.Media.TITLE, “audio” + audiofile.getName());     values.put(MediaStore.Audio.Media.DATE_ADDED, (int) (current / 1000));     values.put(MediaStore.Audio.Media.MIME_TYPE, “audio/3gpp”);     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, “Added File ” + newUri, Toast.LENGTH_LONG).show();   } }  

download this mediarecorder Example

Output:

Next TopicAndroid TextToSpeech Tutorial

Android MediaRecorder example

Android MediaRecorder Example

activity_main.xml

Activity class

Output:

Android 11 | Android Version 11

AndroidManifest.xml file in android

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