Android NotificationListenerService get EXTRA_SMALL_ICON always returns null

Issue

I'm developing an app to read active notifications of Android. So far I have being successful until I got stucked with getting EXTRA_SMALL_ICON. I use following piece of code to retrive app icon and large icon and they both work just fine.

//Works fine

Drawable appIcon = null;
try {
     appIcon = getPackageManager().getApplicationIcon(packageName);
} catch (PackageManager.NameNotFoundException e) {
     e.printStackTrace();
}

//Works fine

Bitmap largeIcon = null;
try {
    largeIcon = (Bitmap) notification.extras.getParcelable(Notification.EXTRA_LARGE_ICON);
} catch (Exception e) {
    e.printStackTrace();
}

//NOT WORKING

Bitmap smallIcon = null;
   try {
        smallIcon = (Bitmap) notification.extras.getParcelable(Notification.EXTRA_SMALL_ICON);
   } catch (Exception e) {
        e.printStackTrace();
   }

Getting SMALL_ICON throws following exception.

Key android.icon expected Parcelable but value was a java.lang.Integer.  The default value <null> was returned.
W/Bundle: Attempt to cast generated internal exception:
java.lang.ClassCastException: java.lang.Integer cannot be cast to android.os.Parcelable

And yes, the notification I'm trying to get has a small icon set. Am I doing anything wrong or is there any other way to gt SMALL_ICON? I can not figure out why.

Thanks!

Solution

try changing it to this

Bitmap smallIcon = null;
try {
    int id = notification.extras.getInt(Notification.EXTRA_SMALL_ICON);
} catch (Exception e) {
    e.printStackTrace();
}

after that use this

    String pack = sbn.getPackageName(); 
    Context remotePackageContext = null; 
    Bitmap bmp = null;
    try {  
        remotePackageContext = getApplicationContext().createPackageContext(pack, 0);  
        Drawable icon = remotePackageContext.getResources().getDrawable(id);  
        if(icon !=null) {  
            bmp = ((BitmapDrawable) icon).getBitmap();
        }

    } catch (Exception e) {  
        e.printStackTrace();  
    }

Answered By - masoud vali