Mobil Programlama - Media Player

activitymain.xml

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
   xmlns:app="http://schemas.android.com/apk/res-auto"  
   xmlns:tools="http://schemas.android.com/tools"  
   android:layout_width="match_parent"  
   android:layout_height="match_parent"  
   android:orientation="vertical"  
   tools:context="com.example.android.mediaplayer.MainActivity">  
   <Button  
     android:id="@+id/baslatbutonu"  
     android:layout_width="wrap_content"  
     android:layout_height="wrap_content"  
     android:text="Play" />  
   <Button  
     android:id="@+id/durdurButonu"  
     android:layout_width="wrap_content"  
     android:layout_height="wrap_content"  
     android:text="Pause" />  
   <Button  
     android:id="@+id/artises"  
     android:layout_width="wrap_content"  
     android:layout_height="wrap_content"  
     android:text="+" />  
   <Button  
     android:id="@+id/eksises"  
     android:layout_width="wrap_content"  
     android:layout_height="wrap_content"  
     android:text="-" />  
 </LinearLayout>  

MainActivity.java

 private MediaPlayer mp;  
   @Override  
   protected void onCreate(Bundle savedInstanceState) {  
     super.onCreate(savedInstanceState);  
     setContentView(R.layout.activity_main);  
     Button baslat=(Button) findViewById(R.id.baslatbutonu);  
     Button durdur=(Button) findViewById(R.id.durdurButonu);  
     mp=MediaPlayer.create(this,R.raw.sarki);  
     baslat.setOnClickListener(new View.OnClickListener() {  
       @Override  
       public void onClick(View view) {  
         Toast.makeText(getApplicationContext(), "Müzik Çalınıyor",Toast.LENGTH_SHORT).show();  
         mp.start();  
       }  
     });  
     durdur.setOnClickListener(new View.OnClickListener() {  
       @Override  
       public void onClick(View view) {  
         mp.stop();  
       }  
     });  
     mp.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {  
       @Override  
       public void onCompletion(MediaPlayer mediaPlayer) {  
         Toast.makeText(getApplicationContext(), "Müzik Bitti! :(",Toast.LENGTH_SHORT).show();  
       }  
     });  
   }