Java Android - Redmi 3（MIUI） - 通知图标无法更改？

Question

I'm trying to change notification icons and in emulator it is OK :

This is what I want (tested on emulator API level 22 (android 5.1.1)) BUT, when i'm running this APP in my real phone (Xiaomi Redmi 3 prime with MIUI 8.0.1) also android 5.1.1 - the notifications looks very very very differant. This notification icons does not showing (just a default application icon).

But... why? What can i do now?

Here is my code:

NotificationCompat.Builder b = new NotificationCompat.Builder(compat);
        b.setSmallIcon((state == STATE_STOPPED) ? R.drawable.ic_stat_remove : R.drawable.check);
        b.setContentText(content);
        b.setContentTitle(BASE_NOTIFICATION_TITLE);
        b.setOngoing(true);
        b.setAutoCancel(true);
        b.setColor((state == STATE_STOPPED) ? Color.RED : Color.rgb(22, 219, 28));

        NotificationManager m = (NotificationManager) compat.getSystemService(NOTIFICATION_SERVICE);
        m.notify(0, b.build());

Just a very simple notification... can someone tell me, what's wrong? Or just MIUI turns off all notification icons and set it to default app launch icons?

Thanks!

EDIT: notification in my phone looks like this...

Answer 1

I had the same problem, but Juan Pablo (in comment Java Android - Redmi 3 (MIUI) - Notification icons cannot be changed? ) gave me a clue and now I have a solution:

//notification is an object of class android.app.Notification
    try {
        Class miuiNotificationClass = Class.forName("android.app.MiuiNotification");
        Object miuiNotification = miuiNotificationClass.newInstance();
        Field field = miuiNotification.getClass().getDeclaredField("customizedIcon");
        field.setAccessible(true);

        field.set(miuiNotification, true);
        field = notification.getClass().getField("extraNotification");
        field.setAccessible(true);

        field.set(notification, miuiNotification);
    } catch (Exception e) {

    }

Now it works as it is expected.

Answer 2

This is behavior of MIUI system. You can not display different icons in notification, by default it takes app icon as notification icon.