Problem with notifications not showing in android 10 java

Problem with notifications not showing in android 10 java..

Private code android studio, Notifications work in Android on all releases, repeating 10, In the problem, I want to change this code to work

callingUid=10339, userId=0, incomingUserId=0, notificationUid=10339, notification=Notification(channel=null pri=0 contentView=null vibrate=default sound=default tick defaults=0xffffffff flags=0x11 color=0x00000000 actions=2 vis=PRIVATE)

public class MNotification {

    private static final String NOTIFICATION_TAG = "M";


    public static void notify(final Context context,
                              final String exampleString, final int number) {
        final Resources res = context.getResources();

        // This image is used as the notification's large icon (thumbnail).
        // TODO: Remove this if your notification has no relevant thumbnail.
        final Bitmap picture = BitmapFactory.decodeResource(res, R.drawable.example_picture);


        final String ticker = exampleString;
        final String title = res.getString(
                R.string.m_notification_title_template, exampleString);
        final String text = res.getString(
                R.string.m_notification_placeholder_text_template, exampleString);

        final NotificationCompat.Builder builder = new NotificationCompat.Builder(context)

                // Set appropriate defaults for the notification light, sound,
                // and vibration.
                .setDefaults(Notification.DEFAULT_ALL)

                // Set required fields, including the small icon, the
                // notification title, and text.
                .setSmallIcon(R.drawable.ic_stat_m)
                .setContentTitle(title)
                .setContentText(text)

                // All fields below this line are optional.

                // Use a default priority (recognized on devices running Android
                // 4.1 or later)
                .setPriority(NotificationCompat.PRIORITY_DEFAULT)

                // Provide a large icon, shown with the notification in the
                // notification drawer on devices running Android 3.0 or later.
                .setLargeIcon(picture)

                // Set ticker text (preview) information for this notification.
                .setTicker(ticker)

                // Show a number. This is useful when stacking notifications of
                // a single type.
                .setNumber(number)
                // If this notification relates to a past or upcoming event, you
                // should set the relevant time information using the setWhen
                // method below. If this call is omitted, the notification's
                // timestamp will by set to the time at which it was shown.
                // TODO: Call setWhen if this notification relates to a past or
                // upcoming event. The sole argument to this method should be
                // the notification timestamp in milliseconds.
                //.setWhen(...)

                // Set the pending intent to be initiated when the user touches
                // the notification.
                .setContentIntent(
                        PendingIntent.getActivity(
                                context,
                                0,
                                new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.google.com")),
                                PendingIntent.FLAG_UPDATE_CURRENT))

                // Show expanded text content on devices running Android 4.1 or
                // later.
                .setStyle(new NotificationCompat.BigTextStyle()
                        .bigText(text)
                        .setBigContentTitle(title)
                        .setSummaryText("Dummy summary text"))

                // Example additional actions for this notification. These will
                // only show on devices running Android 4.1 or later, so you
                // should ensure that the activity in this notification's
                // content intent provides access to the same actions in
                // another way.
                .addAction(
                        R.drawable.ic_action_stat_share,
                        res.getString(R.string.action_share),
                        PendingIntent.getActivity(
                                context,
                                0,
                                Intent.createChooser(new Intent(Intent.ACTION_SEND)
                                        .setType("text/plain")
                                        .putExtra(Intent.EXTRA_TEXT, "Dummy text"), "Dummy title"),
                                PendingIntent.FLAG_UPDATE_CURRENT))
                .addAction(
                        R.drawable.ic_action_stat_reply,
                        res.getString(R.string.action_reply),
                        null)

                // Automatically dismiss the notification when it is touched.
                .setAutoCancel(true);

            notify(context, builder.build());


    }

    @SuppressLint("ObsoleteSdkInt")
    @TargetApi(Build.VERSION_CODES.ECLAIR)
    private static void notify(final Context context, final Notification notification) {
        final NotificationManager nm = (NotificationManager) context
                .getSystemService(Context.NOTIFICATION_SERVICE);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ECLAIR) {
            nm.notify(NOTIFICATION_TAG, 0, notification);
        } else {
            nm.notify(NOTIFICATION_TAG.hashCode(), notification);
        }
    }

    /**
     * Cancels any notifications of this type previously shown using
     * {@link #notify(Context, String, int)}.
     */
    @TargetApi(Build.VERSION_CODES.ECLAIR)
    public static void cancel(final Context context) {
        final NotificationManager nm = (NotificationManager) context
                .getSystemService(Context.NOTIFICATION_SERVICE);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ECLAIR) {
            nm.cancel(NOTIFICATION_TAG, 0);
        } else {
            nm.cancel(NOTIFICATION_TAG.hashCode());
        }
    }
}