Started abstracting the MediaPlayer from the MainActivity and turning it into a Service # 28

app/src/main/java/com/example/mear/playback/PlayMusic.kt

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+package com.example.mear.playback
+
+class PlayMusic {
+}

app/src/main/java/com/example/mear/playback/service/MusicService.kt

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+package com.example.mear.playback.service
+
+import android.app.NotificationManager
+import android.app.Service
+import android.content.Intent
+import android.media.MediaPlayer
+import android.os.Binder
+import android.os.IBinder
+import android.R
+import android.R.string.cancel
+import android.widget.Toast
+
+
+import com.example.mear.models.Track
+import com.example.mear.management.MusicFiles
+import com.example.mear.management.TrackManager
+import com.example.mear.repositories.TrackRepository
+
+
+class MusicService: Service() {
+
+    private var trackPlayer: MediaPlayer? = null
+    private val mBinder = LocalBinder()
+
+    inner class LocalBinder : Binder() {
+        internal val service: MusicService
+            get() = this@MusicService
+    }
+
+    override fun onCreate() {
+    }
+
+    override fun onStartCommand(intent: Intent, flags: Int, startId: Int): Int {
+        return Service.START_NOT_STICKY
+    }
+
+    override fun onDestroy() {
+
+        Toast.makeText(this, "Music Service Stopped", Toast.LENGTH_SHORT).show()
+    }
+
+    override fun onBind(intent: Intent): IBinder? {
+        return mBinder
+    }
+}