IntentUtil.java

public static String getIntentExtrasAsString(Intent intent) {
    if (intent == null || intent.getExtras() == null || intent.getExtras().isEmpty()) return "no extras or null intent";

    StringBuilder stringBuilder = new StringBuilder();

    for (String key : intent.getExtras().keySet()) {
        stringBuilder.append("(" + key + ", " + intent.getExtras().get(key) + ")")
        .append(", ");
    }

    return stringBuilder.toString();
}