IntentHelper.java

public static void printAllIntentData(Intent intent) {
        Bundle bundle = intent.getExtras();
        if (bundle != null) {
            for (String key : bundle.keySet()) {
                Object value = bundle.get(key);
                Log.d(TAG, String.format("%s %s (%s)", key,
                        value.toString(), value.getClass().getName()));
            }
        }    
}