为什么未显示android状态栏通知图标？

Question

当我下拉状态栏时，我可以看到我的应用程序的通知，但没有任何图标显示。 图标是指白色的小图标，如wifi图标。我已经使用Android Asset Studio来生成我正在使用的图标。这是代码：

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        String chanel_id = "3000";
        CharSequence name = "Channel";
        String description = "Disc";
        int importance = NotificationManager.IMPORTANCE_HIGH;
        NotificationChannel mChannel = new NotificationChannel(chanel_id, name, importance);
        mChannel.setDescription(description);
        mChannel.enableLights(true);
        mChannel.setLightColor(Color.BLUE);
        notificationManager.createNotificationChannel(mChannel);
        Bitmap bitmap = BitmapFactory.decodeResource(gameActivity.getResources(), R.drawable.ic_kb);
        mBuilder = new Notification.Builder(gameActivity, chanel_id)
                .setSmallIcon(R.drawable.ic_kb)
                .setLargeIcon(bitmap)
                .setContentTitle(title)
                .setContentText(text);
    }

Answer 1

您打过电话notificationManager.notify(chanel_id, mBuilder.build());吗？