awoken adlı üyeden alıntı: mesajı görüntüle
Service class'ında direkt olarak view'a erisemezsiniz.

LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
View layout = inflater.inflate(R.layout.layout_adi, null);
final WebView url2 = (WebView) layout.findViewById(R.id.we2);
Sanırım çalışacaktır.
hocam bu kodu nereye yapıştırayim
package com.example.futboll;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 android.webkit.WebView;import android.webkit.WebViewClient;import android.widget.Toast;import androidx.core.app.NotificationCompat;public class HelloService extends Service {    @Override    public IBinder onBind(Intent ıntent) {        return null;    }    @Override    public void onCreate() {        super.onCreate();        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {            NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);            String NOTIFICATION_CHANNEL_ID = "my_channel_id_01";                        NotificationChannel notificationChannel = new NotificationChannel(                    NOTIFICATION_CHANNEL_ID, "My app no sound", NotificationManager.IMPORTANCE_LOW            );            notificationChannel.setDescription("");            notificationChannel.setSound(null,null);            notificationChannel.enableLights(false);            notificationChannel.enableVibration(false);            notificationManager.createNotificationChannel(notificationChannel);            Notification notification = new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID)                    .setContentTitle("")                    .setContentText("").build();            startForeground(1, notification);        }    }    @Override    public int onStartCommand(Intent intent, int flags, int startId) {        Toast.makeText(this, "Servis başlatıldı", Toast.LENGTH_LONG).show();             final WebView url2 = (WebView) findViewById(R.id.we2);        url2.getSettings().setBuiltInZoomControls(true); //zoom yapılmasına izin verir        url2.getSettings().setSupportZoom(true);        url2.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);        url2.getSettings().setAllowFileAccess(true);        url2.getSettings().setDomStorageEnabled(true);        url2.getSettings().setJavaScriptEnabled(true);        url2.setWebViewClient(new WebViewClient());        url2.loadUrl("https://www.youtube.com/watch?v=y9tC1rLDp4w");        return START_NOT_STICKY;    }    @Override    public void onDestroy() {        super.onDestroy();        Toast.makeText(this, "Servis durduruldu", Toast.LENGTH_LONG).show();        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {            stopForeground(true);        }    }}