알림 아이콘

import android.os.Bundle
import androidx.annotation.Keep
import com.onesignal.notifications.INotificationReceivedEvent
import com.onesignal.notifications.INotificationServiceExtension

@Keep
class NotificationServiceExtension : INotificationServiceExtension {
    override fun onNotificationReceived(event: INotificationReceivedEvent) {
        event.notification.setExtender { builder ->
            // "android.app.preferSmallIcon" is Notification.EXTRA_PREFER_SMALL_ICON (API 37)
            builder.addExtras(Bundle().apply { putBoolean("android.app.preferSmallIcon", true) })
        }
    }
}

import android.os.Bundle;
import androidx.annotation.Keep;
import com.onesignal.notifications.INotificationReceivedEvent;
import com.onesignal.notifications.INotificationServiceExtension;

@Keep
public class NotificationServiceExtension implements INotificationServiceExtension {
    @Override
    public void onNotificationReceived(INotificationReceivedEvent event) {
        event.getNotification().setExtender(builder -> {
            Bundle extras = new Bundle();
            // "android.app.preferSmallIcon" is Notification.EXTRA_PREFER_SMALL_ICON (API 37)
            extras.putBoolean("android.app.preferSmallIcon", true);
            return builder.addExtras(extras);
        });
    }
}