Sound manipulation using MediaPlayer – Android dev

Another tutorial for MobileSIG – how can you manipulate an MP3 sound file to play, pause and stop. Unfortunately, I still having some problems with PAUSE. I’ll figure out letter. Basically this example may PLAY and STOP a MP3 sound file source.

This is a half day project development, sorry for any inconvenient.

The application screenshot;

APP - Baca fatihah bersama ustaz Don

What the application does – basically it has the verses in Arabic, and the recitation. Click “>” to hear the recitation, click “henti” to stop. “II” is to pause (not yet functioning). Tested on Samsung Galaxy S and HTC Wildfire only.

The project setting;

The al-Fatihah recitation is in assets (01fatihah.mp3), the images are in res/drawable-mdpi (fatihah.png is the verses in Arabic).

image

The User Interface (main.xml);

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" android:orientation="vertical" android:background="@drawable/islamicbg">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:keepScreenOn="true" android:text="al-Fatihah (1-7)"/>
<ImageView android:layout_height="wrap_content" android:src="@drawable/fatihah"
android:id="@+id/imageView1" android:layout_width="wrap_content"></ImageView>
<TableLayout android:layout_height="wrap_content" android:id="@+id/tableLayout1"
android:layout_width="fill_parent">
<TableRow android:layout_width="fill_parent" android:id="@+id/tableRow1" android:layout_height="fill_parent"
android:layout_gravity="center_vertical">
<Button android:text=" > " android:id="@+id/btnplay" android:layout_width="wrap_content"
android:layout_column="0" android:layout_height="wrap_content" />
<Button android:text=" || " android:id="@+id/btnpause" android:layout_width="wrap_content"
android:layout_column="1" android:layout_height="wrap_content" />
<Button android:text="henti" android:id="@+id/btnstop" android:layout_width="wrap_content"
android:layout_column="2" android:layout_height="wrap_content" />
</TableRow>
</TableLayout>

</LinearLayout>


The source code;



package net.kerul.alfatihah;

import android.app.Activity;
import android.content.res.AssetFileDescriptor;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class BacaFatihahActivity extends Activity implements OnClickListener{

private MediaPlayer mp;
private Button btnplay, btnpause,btnstop;
private Boolean reload_sound;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//flag to reload sound
reload_sound=true;

//UIs activation
btnplay = (Button) findViewById(R.id.btnplay);
btnplay.setOnClickListener(this);
btnpause = (Button) findViewById(R.id.btnpause);
btnpause.setOnClickListener(this);
btnpause.setEnabled(false);

btnstop = (Button) findViewById(R.id.btnstop);
btnstop.setOnClickListener(this);
btnstop.setEnabled(false);

}
public void onClick(View v) {

if (v == btnplay) {//PLAY button clicked
if (reload_sound==true){
reload_sound=false;
//preparing the sound
mp = new MediaPlayer();
try
{
AssetFileDescriptor afd = getAssets().openFd("01fatihah.mp3");
mp.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength());
mp.prepare();
mp.start();//play sound
}
catch(Exception e) {}
}
else{
mp.start();//play sound
}
btnplay.setEnabled(false);
btnpause.setEnabled(true);
btnstop.setEnabled(true);

}
else if (v == btnpause) {//PAUSE button clicked
btnplay.setEnabled(true);
btnpause.setEnabled(false);
btnstop.setEnabled(true);
if(mp.isPlaying()){

mp.pause();
}
}
else if (v == btnstop) {//STOP button clicked
btnplay.setEnabled(true);
btnpause.setEnabled(false);
btnstop.setEnabled(false);
if(mp.isPlaying()){
mp.stop();
mp.release();//remove sound from memory
reload_sound=true;
}
}
}
}




The images and sound (al-Fatihah recitation) – project folder;



The APK (android installer);



*** Credit to Ustaz Don Daniyal for his help in reciting the al-Fatihah. The voice is his. Thanks for the help.

4 comments:

  1. Silahkan... Ader code2 yg lebih baik, tp tak sempat lai nak update blog. Tima kasih atas sokongan...

    ReplyDelete
  2. Salam harap dpt letakkan .apk file dalam market android,mungkin boleh ambil dari situ. Teima kasih

    ReplyDelete
    Replies
    1. Artikel ini sebenarnya panduan bagaimana nak manipulasi sound (audio) mellalui pengaturcaraan Android. Sekiranya berminat applikasi yang lengkap, sila download dari https://market.android.com/details?id=net.kerul.mMathurat

      Delete

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