Android Multimedia APIs Develop Applications of MP3 Player

To Understand Android Multimedia APIs Develop Applications of MP3 Player

• XML Code :

<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" >

   <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="44dp"

       android:layout_marginTop="38dp"

       android:text="Play" />

   <Button

       android:id="@+id/button2"

       android:layout_width="wrap_content"

       android:layout_height="wrap_content"

       android:layout_alignBottom="@+id/button1"

       android:layout_centerHorizontal="true"

       android:text="Pause" />

   <Button

       android:id="@+id/button3"

       android:layout_width="wrap_content"

       android:layout_height="wrap_content"

       android:layout_alignBaseline="@+id/button2"

       android:layout_alignBottom="@+id/button2"

       android:layout_marginLeft="30dp"

       android:layout_toRightOf="@+id/button2"

       android:text="Stop" />

   <TextView

       android:id="@+id/textView1"

       android:layout_width="wrap_content"

       android:layout_height="wrap_content"

       android:layout_alignLeft="@+id/button1"

       android:layout_below="@+id/button1"

       android:layout_marginTop="175dp"

       android:text="" />

</RelativeLayout>

• JAVA Code :

package com.example.pra8;

import android.media.MediaPlayer;

import android.os.Bundle;

import android.app.Activity;

import android.content.Intent;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;

import android.support.v4.app.NavUtils;

public class Pra8 extends Activity {

Button bt1,bt2,bt3;

TextView tv;

MediaPlayer mp;

   @Override

   public void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       setContentView(R.layout.activity_pra8);

       

       mp = MediaPlayer.create(this, R.raw.song);

       bt1 = (Button)findViewById(R.id.button1);

       bt2 = (Button)findViewById(R.id.button2);

       bt3 = (Button)findViewById(R.id.button3);

       tv = (TextView)findViewById(R.id.textView1);

       tv.setText(R.raw.song);

       bt1.setOnClickListener(new OnClickListener() {

public void onClick(View v) {

mp.start();

}

});

       

       bt2.setOnClickListener(new OnClickListener() {

public void onClick(View v) {

mp.pause();

}

});

       

       bt3.setOnClickListener(new OnClickListener() {

public void onClick(View v) {

mp.stop();

Intent i = new Intent(Pra8.this,Pra8.class);

startActivity(i);

}

});

   }

 

}

• OUTPUT :