PushManager.checkToken 小米或者华为手机的时候，token为null

[zhaozw]

private static void checkToken() {
    //default value
    int type = -1;
    String token = null;
    if (OS == Constants.OS_HUAWEI) {
        if (!TextUtils.isEmpty(tokenHuawei)) {
            if (ERROR.equals(tokenHuawei)) {
                // other
                type = Constants.OS_OTHER;
                token = tokenOther;
            } else if (!TextUtils.isEmpty(tokenOther)) {
                // hauwei
                type = Constants.OS_HUAWEI;
                token = tokenHuawei;
            }
        }
    } else if (OS == Constants.OS_MI) {
        if (!TextUtils.isEmpty(tokenMi)) {
            if (ERROR.equals(tokenMi)) {
                // other
                type = Constants.OS_OTHER;
                token = tokenOther;
            } else if (!TextUtils.isEmpty(tokenOther)) {
                // MI
                type = Constants.OS_MI;
                token = tokenMi;
            }
        }
    } else {
        if (!TextUtils.isEmpty(tokenOther)) {
            // other
            type = Constants.OS_OTHER;
            token = tokenOther;
        }
    }
    if ( tokenListeners.size() > 0 && !TextUtils.isEmpty(token) && !ERROR.equals(token)) {

// reportTime--;
for (TokenListener listener : tokenListeners) {
listener.gotToken(type, token);
}
}
}

貌似TextUtils.isEmpty(tokenOther)应该改成TextUtils.isEmpty(tokenMi)和TextUtils.isEmpty(tokenHuawei)