added auto stop to service

Author: Sid Zi

app/src/main/java/com/sidzi/circleofmusic/services/MusicPlayerService.java

@@ -7,6 +7,7 @@
 import android.media.AudioManager;
 import android.media.MediaPlayer;
 import android.os.Binder;
+import android.os.Handler;
 import android.os.IBinder;
 import android.support.annotation.Nullable;
 import android.support.v4.content.LocalBroadcastManager;
@@ -58,6 +59,21 @@ public void onCreate() {
         } catch (SQLException e) {
             e.printStackTrace();
         }
+        final Handler mHandler = new Handler();
+        final Runnable mRunnable = new Runnable() {
+            @Override
+            public void run() {
+                try {
+                    if (!mMediaPlayer.isPlaying())
+                        onDestroy();
+                } catch (NullPointerException e) {
+                    onDestroy();
+                } finally {
+                    mHandler.postDelayed(this, 15000);
+                }
+            }
+        };
+        mHandler.postDelayed(mRunnable, 15000);
     }
 
     @Override