Create ForegroundService

app/src/main/java/com/localtransfer/TransferService.java

@@ -0,0 +1,43 @@
+package com.localtransfer;
+
+import android.app.Notification;
+import android.app.PendingIntent;
+import android.app.Service;
+import android.content.Intent;
+import android.os.IBinder;
+
+import androidx.core.app.NotificationCompat;
+
+public class TransferService extends Service {
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        int id = intent.getIntExtra("id", 0);
+
+        Intent notificationIntent = new Intent(this, MainActivity.class);
+        PendingIntent pendingIntent = PendingIntent.getActivity(this,
+                0, notificationIntent, 0);
+
+        Notification notification = new NotificationCompat.Builder(this, "CHANNEL_ID")
+                .setContentIntent(pendingIntent)
+                .build();
+
+        startForeground(id, notification);
+
+        //do heavy work on a background thread
+        //stopSelf();
+
+        return START_NOT_STICKY;
+    }
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        // TODO: Return the communication channel to the service.
+        throw new UnsupportedOperationException("Not yet implemented");
+    }
+}