Start background services across processes

public class MyService extends Service {private static final String CHANNEL_ID = "100";private static final String CHANNEL_NAME = "APK1";public MyService() {}@Overridepublic IBinder onBind(Intent intent) {// TODO: Return the communication channel to the service.throw new UnsupportedOperationException("Not yet implemented");}@Overridepublic void onCreate() {super.onCreate();NotificationChannel channel = new NotificationChannel(CHANNEL_ID, CHANNEL_NAME, NotificationManager.IMPORTANCE_HIGH);NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);manager.createNotificationChannel(channel);Notification notification = new Notification.Builder(getApplicationContext(), CHANNEL_ID).build();startForeground(1, notification);}@Overridepublic int onStartCommand(Intent intent, int flags, int startId) {Timer timer = new Timer();timer.schedule(new TimerTask() {@Overridepublic void run() {Intent intent = new Intent();intent.setAction("android.intent.action.START_SERVICE");The first parameter is the package name and the second parameter is the package name plus the class nameintent.setComponent(new ComponentName("com.example.apk2","com.example.apk2.MyService"));intent.putExtra("msg","Start service across processes");startForegroundService(intent);Log.e(getClass().getName(), "startService end");}},30 * 1000);return super.onStartCommand(intent, flags, startId);}}