SafetyNet安全浏览无法正常工作

Question

我正在尝试使用https://developer.android.com/training/safetynet/safebrowsing.html上的安全浏览指南实施一个简单的URL请求签入Android，以获取某些URL的恶意软件或网络钓鱼威胁。

我正在使用片段（用于标签式活动）来实现API，它应该检索带有恶意软件站点信息的请求，但始终是恶意站点不是真正威胁的响应。

例如此网站：http://malware.testing.google.test/testing/malware/ 使用透明度报告工具：https://transparencyreport.google.com/safe-browsing/search?url=http:%2F%2Fmalware.testing.google.test%2Ftesting%2Fmalware%2F显示该网站是恶意的，但在我的应用中显示该网站是受信任的网站。

这是我的代码：

public class ThreatList extends Fragment{

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
}


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragment_threat, container, false);

    new LoadThreatData().execute();
    return view;
}

@Override
public void onResume(){
    super.onResume();
}

@SuppressLint("StaticFieldLeak")
private class LoadThreatData extends AsyncTask<Void, Integer, Void>{

    @Override
    protected Void doInBackground(Void... voids) {
        SafetyNet.getClient(getActivity()).initSafeBrowsing();
        Log.d("Threats", "init");

        return null;
    }

    @Override
    protected void onPostExecute(Void result){
        String url = "http://malware.testing.google.test/testing/malware/"; //"go.trackmyclicks202.com";//"http://ianfette.org/"; //"http://malware.wicar.org/data/eicar.com";

        SafetyNet.getClient(getActivity()).lookupUri(
                url,
                "MY_API_KEY_FROM_GOOGLE_DEVELOPERS_CONSOLE",
                SafeBrowsingThreat.TYPE_POTENTIALLY_HARMFUL_APPLICATION,
                SafeBrowsingThreat.TYPE_SOCIAL_ENGINEERING)
                .addOnSuccessListener(getActivity(), new OnSuccessListener<SafetyNetApi.SafeBrowsingResponse>() {
                    @Override
                    public void onSuccess(SafetyNetApi.SafeBrowsingResponse sbResponse) {
                        // Indicates communication with the service was successful.
                        // Identify any detected threats.
                        if (sbResponse.getDetectedThreats().isEmpty()) {
                            // No threats found.
                            Log.e("Threats", "no threats found");
                            Toast.makeText(
                                    getActivity(),
                                    "no threats",
                                    Toast.LENGTH_SHORT)
                                    .show();

                                     //always get in here
                        } else {
                            // Threats found!
                            Log.e("Threats", sbResponse.toString());
                            Toast.makeText(
                                    getActivity(),
                                    sbResponse.toString(),
                                    Toast.LENGTH_SHORT)
                                    .show();
                        }
                    }
                })
                .addOnFailureListener(getActivity(), new OnFailureListener() {
                    @Override
                    public void onFailure(@NonNull Exception e) {
                        // An error occurred while communicating with the service.
                        if (e instanceof ApiException) {
                            // An error with the Google Play Services API contains some
                            // additional details.
                            ApiException apiException = (ApiException) e;
                            Log.d(TAG, "Error: " + CommonStatusCodes
                                    .getStatusCodeString(apiException.getStatusCode()));
                            Toast.makeText(
                                    getActivity(),
                                    "error1",
                                    Toast.LENGTH_SHORT)
                                    .show();

                            // Note: If the status code, apiException.getStatusCode(),
                            // is SafetyNetstatusCode.SAFE_BROWSING_API_NOT_INITIALIZED,
                            // you need to call initSafeBrowsing(). It means either you
                            // haven't called initSafeBrowsing() before or that it needs
                            // to be called again due to an internal error.
                        } else {
                            // A different, unknown type of error occurred.
                            Log.d(TAG, "Error: " + e.getMessage());
                            Toast.makeText(
                                    getActivity(),
                                    "error2",
                                    Toast.LENGTH_SHORT)
                                    .show();
                        }
                    }
                });

    }
}
}

在gradle中使用：

compile 'com.google.android.gms:play-services-safetynet:11.8.0'

在清单中放了许可：

<uses-permission android:name="android.permission.INTERNET" />

我不知道我做错了什么，我使用的是最新版本的V4 API，但无论使用什么网址，总是显示它不是威胁，因此我不赞成使用V3 API不要用它。

API已经启用，我获得了我的API密钥和所有必要的配置，但是在谷歌开发者控制台的API面板中显示特定API没有流量或用途，请帮助！