Thread: how to start a service from oreo on

hi from oreo you start a service differently than before and then it changed again for s and i cant figure out what is wrong with my pendingIntent

Intent notificationIntent = new Intent(this, blockservice.class);
        PendingIntent pendingIntent;
 
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {//THIS WORKS
            pendingIntent = getActivity(this, 0, notificationIntent, 0);
            System.out.println("older than o sdk");
        }else if(Build.VERSION.SDK_INT <= Build.VERSION_CODES.S && Build.VERSION.SDK_INT <= Build.VERSION_CODES.O){//DOES NOT WORK
            NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
            mNotificationManager.createNotificationChannel(new NotificationChannel("micMuteChannel", "micMute", NotificationManager.IMPORTANCE_HIGH));
            System.out.println("sdk between o+s");//this on works on lineage
        }else if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.S){//DOES NOT WORK
            System.out.println("sdk s or above");
            PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_MUTABLE);
        }
            NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, "micMuteChannel");
            Notification notification = notificationBuilder.setOngoing(true)
                    .setContentTitle(this.getString(R.string.app_name))
                    .setPriority(NotificationManager.IMPORTANCE_HIGH)
                    .setCategory(Notification.CATEGORY_SERVICE).build();
        try {
                startForeground(1337, notification);
            }catch(Exception e){
                e.printStackTrace();
            }

The error is

Bad notification for startForeground: java.lang.RuntimeException: invalid channel for service notification: Notification(channel=micMuteChannelappname pri=4 contentView=null vibrate=null sound=null defaults=0x0 flags=0x42 color=0x00000000 category=service vis=PRIVATE)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1768)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6494)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

have searche for examples and have tried allot of things but i keep getting this error for all emulators running oreo and above if anyone can spot my mistake would be great thanks

k just an update i have it working for oreo to s incase it is of use to others

if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
            System.out.println("------------------------------- older than o sdk");
            Intent notificationIntent = new Intent(this, blockservice.class);
            PendingIntent pendingIntent = getActivity(this, 0, notificationIntent, 0);
            NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, "micMuteChannel");
            Notification notification = notificationBuilder.setOngoing(true)
                    .setContentTitle(this.getString(R.string.app_name))
                    .setPriority(NotificationManager.IMPORTANCE_HIGH)
                    .setCategory(Notification.CATEGORY_SERVICE).build();
            try {
                startForeground(1337, notification);
            }catch(Exception e){
                e.printStackTrace();
            }

i now just need to figure out how to launch a service from s using the code from above gives error

 
Bad notification for startForeground

k have it working in case it is of use to others

if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {//Build.VERSION.SDK_INT < Build.VERSION_CODES.O
            System.out.println("------------------------------- older than o sdk");
            Intent notificationIntent = new Intent(this, blockservice.class);
            PendingIntent pendingIntent = getActivity(this, 0, notificationIntent, 0);
            NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, "name");
            Notification notification = notificationBuilder.setOngoing(true)
                    .setContentTitle(this.getString(R.string.app_name))
                    .setPriority(NotificationManager.IMPORTANCE_HIGH)
                    .setCategory(Notification.CATEGORY_SERVICE).build();
            try {
                startForeground(1337, notification);
            } catch (Exception e) {
                e.printStackTrace();
            }
 
        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {//Build.VERSION.SDK_INT <= Build.VERSION_CODES.S && Build.VERSION.SDK_INT >= Build.VERSION_CODES.O
            System.out.println("------------------------------- 0 or highter sdk");
            final NotificationCompat.Builder notification = new NotificationCompat.Builder(this,"name")
                    .setContentTitle("name")
                    .setSmallIcon(R.drawable.a)
                    .setOnlyAlertOnce(true)
                    .setOngoing(true);
            final NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
            startForeground(1334,notification.build());
 
        }