ScreenShots:
strings.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Audio Capture</string>
<string name="action_settings">Settings</string>
<string name="hello_world">Hello world!</string>
<string name="startBtn">Start Recording</string>
<string name="stopBtn">Stop Recording</string>
<string name="playBtn">Play </string>
</resources>
activity_main.xml:
<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=".MainActivity" >
<Button
android:id="@+id/button_startRecordBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="24dp"
android:text="@string/startBtn" />
<Button
android:id="@+id/button_stopRecordBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/button_startRecordBtn"
android:layout_centerHorizontal="true"
android:layout_marginTop="70dp"
android:text="@string/stopBtn" />
<Button
android:id="@+id/button_playBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/button_stopRecordBtn"
android:layout_centerHorizontal="true"
android:layout_marginTop="55dp"
android:text="@string/playBtn" />
</RelativeLayout>
MainActivity.java:
package com.ram.audiocapture;
import java.io.IOException;
import android.app.Activity;
import android.media.MediaPlayer;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MainActivity extends Activity implements OnClickListener {
private Button startRecBtn, stopRecBtn, playBtn;
private MediaRecorder recorder = null;
String FILE_PATH_NAME = null;
private MediaPlayer m = null;
public MainActivity() {
FILE_PATH_NAME = Environment.getExternalStorageDirectory()
.getAbsolutePath();
FILE_PATH_NAME += "/recordsample.3gp";
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
startRecBtn = (Button) findViewById(R.id.button_startRecordBtn);
stopRecBtn = (Button) findViewById(R.id.button_stopRecordBtn);
playBtn = (Button) findViewById(R.id.button_playBtn);
startRecBtn.setOnClickListener(this);
stopRecBtn.setOnClickListener(this);
playBtn.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.button_startRecordBtn:
recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(FILE_PATH_NAME);
try {
recorder.prepare();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
recorder.start();
break;
case R.id.button_stopRecordBtn:
recorder.stop();
recorder.reset();
recorder.release();
recorder = null;
break;
case R.id.button_playBtn:
m = new MediaPlayer();
try {
m.setDataSource(FILE_PATH_NAME);
m.prepare();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
m.start();
break;
}
}
@Override
protected void onPause() {
if (recorder != null) {
recorder.release();
recorder = null;
}
if (m != null) {
m.release();
m = null;
}
super.onPause();
}
}
AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.ram.audiocapture"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.ram.audiocapture.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
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