[leanback] keep alive server

app/src/leanback/java/com/fongmi/android/tv/service/NanoService.java

@@ -0,0 +1,53 @@
+package com.fongmi.android.tv.service;
+
+import android.app.Notification;
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+import android.app.Service;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Build;
+import android.os.IBinder;
+
+import androidx.annotation.Nullable;
+import androidx.core.content.ContextCompat;
+
+import com.fongmi.android.tv.App;
+import com.fongmi.android.tv.BuildConfig;
+import com.fongmi.android.tv.R;
+import com.fongmi.android.tv.server.Server;
+
+public class NanoService extends Service {
+
+    public static void start() {
+        ContextCompat.startForegroundService(App.get(), new Intent(App.get(), NanoService.class));
+    }
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        Server.get().start();
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return START_STICKY;
+        NotificationChannel channel = new NotificationChannel(BuildConfig.FLAVOR_mode, getString(R.string.app_name), NotificationManager.IMPORTANCE_DEFAULT);
+        ((NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE)).createNotificationChannel(channel);
+        Notification notify = new Notification.Builder(this, BuildConfig.FLAVOR_mode).build();
+        startForeground(1, notify);
+        return START_STICKY;
+    }
+
+    @Nullable
+    @Override
+    public IBinder onBind(Intent intent) {
+        return null;
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        Server.get().stop();
+    }
+}