Android 集成Face++ 人脸识别(3.0+SDK)

写在前面

最近项目需求需要输入用户真实姓名身份证号再去调用人脸识别效验是否是本人所以就首先关注了Face++(旷视)的人脸识别,听说是正确率很高.....所以就集成了.

1.首先去官网去创建应用(其实听说创建应用是比较麻烦的)

创建好应用以后需要上传你项目的包名

2.下载Demo Demo中会有一个扫描身份证的SDK和人脸识别的SDK 我这个需求呢是人脸识别所以只集成人脸识别(如下图)

您可以按照您项目的需求集成不同的SDK(这里只集成人脸识别SDK)

3.上面的俩个文件夹都有扫描身份证和人脸识别的Demo

建议您,先把申请应用完以后的AppKey 和secret 配置到Face++的Demo中跑完这个流程

4.开始我们的步骤

5.Face++给的Demo中就会有我们今天需要集成的SDK(如下图)

点击sdk文件夹

6.我们需要把meglive_still.aar 导入到 lib文件夹中

并在app下 build.gradle文件下 dependencies中写入

implementation(name: 'meglive_still', ext: 'aar')

在repositories中写入

flatDir { dirs 'libs' }

7.上代码

(1)需要调用人脸识别的Activity

private static final int CAMERA_PERMISSION_REQUEST_CODE = 100;
private static final int EXTERNAL_STORAGE_REQ_WRITE_EXTERNAL_STORAGE_CODE = 101;
private ProgressDialog mProgressDialog;
private MegLiveManager megLiveManager;
private static final String GET_BIZTOKEN_URL = "https://api.megvii.com/faceid/v3/sdk/get_biz_token"; //Face++获取BizToken的url
private static final String VERIFY_URL = "https://api.megvii.com/faceid/v3/sdk/verify";   //Face++人脸效验的url
private static final String API_KEY = "您的AppKey";
private static final String SECRET = "您的Secret";
private String sign = "";
private static final String SIGN_VERSION = "hmac_sha1";
private byte[] imageRef;//底库图片
private int buttonType;

private void init() {megLiveManager=MegLiveManager.getInstance();mProgressDialog = new ProgressDialog(this);mProgressDialog.setCancelable(false);long currtTime = System.currentTimeMillis() / 1000;long expireTime = (System.currentTimeMillis() + 60 * 60 * 100) / 1000;sign = GenerateSign.appSign(API_KEY, SECRET, currtTime, expireTime);requestCameraPerm();}

//获取BizToken的请求

private void getBizToken(String livenessType, int comparisonType, String idcardName, String idcardNum, String uuid, byte[] image) {mProgressDialog.show();HttpRequestManager.getInstance().getBizToken(this, GET_BIZTOKEN_URL, sign, SIGN_VERSION, livenessType, comparisonType, idcardName, idcardNum, uuid, image, new HttpRequestCallBack() {@Overridepublic void onSuccess(String responseBody) {try {JSONObject json = new JSONObject(responseBody);String bizToken = json.optString("biz_token");megLiveManager.preDetect(FaceIdActivity.this, bizToken,FaceIdActivity.this);} catch (JSONException e) {e.printStackTrace();}}@Overridepublic void onFailure(int statusCode, byte[] responseBody) {}});}

@Override
public void onDetectFinish(String token, int errorCode, String errorMessage, String data) {if (errorCode == 1000) {verify(token, data.getBytes());}
}

@Override
public void onPreStart() {showDialogDismiss();
}@Override
public void onPreFinish(String token, int errorCode, String errorMessage) {progressDialogDismiss();if (errorCode == 1000) {megLiveManager.startDetect(this);}
}//人脸识别的url
private void verify(String token, byte[] data) {showDialogDismiss();HttpRequestManager.getInstance().verify(this, VERIFY_URL, sign, SIGN_VERSION, token, data, new HttpRequestCallBack() {@Overridepublic void onSuccess(String responseBody) {Log.w("result", responseBody);progressDialogDismiss();gotoActivity(mContext,FaceIdVerifySuccessActivity.class,null);}@Overridepublic void onFailure(int statusCode, byte[] responseBody) {Log.w("result", new String(responseBody));progressDialogDismiss();gotoActivity(mContext,FaceIdVerifyErrorActivity.class,null);}});
}private void progressDialogDismiss() {runOnUiThread(new Runnable() {@Overridepublic void run() {if (mProgressDialog != null) {mProgressDialog.dismiss();}}});
}private void showDialogDismiss() {runOnUiThread(new Runnable() {@Overridepublic void run() {if (mProgressDialog != null) {mProgressDialog.show();}}});}private void requestCameraPerm() {if (android.os.Build.VERSION.SDK_INT >= M) {if (checkSelfPermission(Manifest.permission.CAMERA)!= PackageManager.PERMISSION_GRANTED) {//进行权限请求requestPermissions(new String[]{Manifest.permission.CAMERA},CAMERA_PERMISSION_REQUEST_CODE);} else {requestWriteExternalPerm();}} else {beginDetect();}
}private void requestWriteExternalPerm() {if (android.os.Build.VERSION.SDK_INT >= M) {if (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {//进行权限请求requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},EXTERNAL_STORAGE_REQ_WRITE_EXTERNAL_STORAGE_CODE);} else {beginDetect();}} else {beginDetect();

    }
}private void beginDetect() {getBizToken("meglive", 1, "您的真实姓名", "您的身份证号", UUID.randomUUID().toString(), null);
}@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {if (requestCode == CAMERA_PERMISSION_REQUEST_CODE) {if (grantResults.length < 1 || grantResults[0] != PackageManager.PERMISSION_GRANTED) {//拒绝了权限申请} else {requestWriteExternalPerm();}} else if (requestCode == EXTERNAL_STORAGE_REQ_WRITE_EXTERNAL_STORAGE_CODE) {if (grantResults.length < 1 || grantResults[0] != PackageManager.PERMISSION_GRANTED) {//拒绝了权限申请} else {beginDetect();}}
}

(2) CV代码出来的错误

您的人脸识别的Activity需要实现 implements DetectCallback, PreCallback

(3)GenerateSign.java

public class GenerateSign {public static String appSign(String apiKey, String secret, long currtTime,long expireTime) {try {int rdm = Math.abs(new Random().nextInt());String plainText = String.format("a=%s&b=%d&c=%d&d=%d", apiKey, expireTime, currtTime,rdm);byte[] hmacDigest = HmacSha1(plainText, secret);byte[] signContent = new byte[hmacDigest.length + plainText.getBytes().length];System.arraycopy(hmacDigest, 0, signContent, 0, hmacDigest.length);System.arraycopy(plainText.getBytes(), 0, signContent, hmacDigest.length,plainText.getBytes().length);return Base64Encode(signContent).replaceAll("[\\s*\t\n\r]", "");} catch (Exception e) {e.printStackTrace();}return null;}/*** 生成base64编码** @param binaryData* @return*/public static String Base64Encode(byte[] binaryData) {String encodedstr = Base64.encodeToString(binaryData,Base64.DEFAULT);return encodedstr;}/*** 生成hmacsha1签名** @param binaryData* @param key* @return* @throws Exception*/public static byte[] HmacSha1(byte[] binaryData, String key) throws Exception {Mac mac = Mac.getInstance("HmacSHA1");SecretKeySpec secretKey = new SecretKeySpec(key.getBytes(), "HmacSHA1");mac.init(secretKey);byte[] HmacSha1Digest = mac.doFinal(binaryData);return HmacSha1Digest;}/*** 生成hmacsha1签名** @param plainText* @param key* @return* @throws Exception*/public static byte[] HmacSha1(String plainText, String key) throws Exception {return HmacSha1(plainText.getBytes(), key);}
}

(4)HttpRequestCallBack

public interface HttpRequestCallBack {void onSuccess(String responseBody);void onFailure(int statusCode, byte[] responseBody);
}

(5)HttpRequestManager.java

public class HttpRequestManager {public final static int TIMEOUT = 10000;private static HttpRequestManager instance;public static HttpRequestManager getInstance() {if (instance == null) {instance = new HttpRequestManager();}return instance;}public void verify(Context context,String url,String sign,String signVersion,String bizToken,byte[] megLiveData,HttpRequestCallBack listener){MultipartEntity entity = new MultipartEntity();entity.addStringPart("sign",sign);entity.addStringPart("sign_version",signVersion);entity.addStringPart("biz_token",bizToken);entity.addBinaryPart("meglive_data",megLiveData);sendMultipartRequest(context,url,entity,new HashMap<String, String>(),listener);}public void getBizToken(Context context,String url,String sign,String signVersoin,String livenessType,int comparisonType,String idcardName,String idcardNum,String uuid,byte[] image_ref1,HttpRequestCallBack listener){MultipartEntity entity = new MultipartEntity();entity.addStringPart("sign",sign);entity.addStringPart("sign_version", signVersoin);entity.addStringPart("liveness_type", livenessType);entity.addStringPart("comparison_type", ""+comparisonType);if (comparisonType==1){entity.addStringPart("idcard_name", idcardName);entity.addStringPart("idcard_number", idcardNum);}else if (comparisonType==0){entity.addStringPart("uuid", uuid);entity.addBinaryPart("image_ref1", image_ref1);}sendMultipartRequest(context,url,entity,new HashMap<String, String>(),listener);}private void sendPostRequest(Context context, String url, final Map<String, String> params, final Map<String, String> header, final HttpRequestCallBack listener) {StringRequest request = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {@Overridepublic void onResponse(String response) {if (listener != null)listener.onSuccess(response);}}, new Response.ErrorListener() {@Overridepublic void onErrorResponse(VolleyError error) {if (error == null) {if (listener != null)listener.onFailure(-1, "timeout exception".getBytes());} else if (error.networkResponse == null) {if (listener != null)listener.onFailure(-1, "timeout exception".getBytes());} else {if (listener != null)listener.onFailure(error.networkResponse.statusCode, error.networkResponse.data);}}}) {@Overrideprotected Map<String, String> getParams() throws AuthFailureError {return params;}@Overridepublic Map<String, String> getHeaders() throws AuthFailureError {return header;}};VolleyHelper.getInstance(context).addToRequestQueue(request);}private void sendGetRequest(Context context, String url, final Map<String, String> header, final HttpRequestCallBack listener) {StringRequest request = new StringRequest(url, new Response.Listener<String>() {@Overridepublic void onResponse(String response) {listener.onSuccess(response);}}, new Response.ErrorListener() {@Overridepublic void onErrorResponse(VolleyError error) {if (error == null) {listener.onFailure(-1, "timeout exception".getBytes());} else if (error.networkResponse == null) {listener.onFailure(-1, "timeout exception".getBytes());} else {listener.onFailure(error.networkResponse.statusCode, error.networkResponse.data);}}}) {@Overridepublic Map<String, String> getHeaders() throws AuthFailureError {return header;}};VolleyHelper.getInstance(context).addToRequestQueue(request);}private void sendMultipartRequest(Context context, String url, MultipartEntity mult, final Map<String, String> header, final HttpRequestCallBack listener) {MultipartRequest multipartRequest = new MultipartRequest(url, new Response.Listener<String>() {@Overridepublic void onResponse(String response) {listener.onSuccess(response);}}, new Response.ErrorListener() {@Overridepublic void onErrorResponse(VolleyError error) {if (error == null) {listener.onFailure(-1, "timeout exception".getBytes());} else if (error.networkResponse == null) {listener.onFailure(-1, "timeout exception".getBytes());} else {listener.onFailure(error.networkResponse.statusCode, error.networkResponse.data);}}}) {@Overridepublic Map<String, String> getHeaders() throws AuthFailureError {return header;}};// 通过MultipartEntity来设置参数multipartRequest.setmMultiPartEntity(mult);VolleyHelper.getInstance(context).addToRequestQueue(multipartRequest);}}

(6)MultipartEntity

public class MultipartEntity implements HttpEntity {private final static char[] MULTIPART_CHARS = "-_1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ".toCharArray();/*** 换行符*/private final String NEW_LINE_STR = "\r\n";private final String CONTENT_TYPE = "Content-Type: ";private final String CONTENT_DISPOSITION = "Content-Disposition: ";/*** 文本参数和字符集*/private final String TYPE_TEXT_CHARSET = "text/plain; charset=UTF-8";/*** 字节流参数*/private final String TYPE_OCTET_STREAM = "application/octet-stream";/*** 二进制参数*/private final byte[] BINARY_ENCODING = "Content-Transfer-Encoding: binary\r\n\r\n".getBytes();/*** 文本参数*/private final byte[] BIT_ENCODING = "Content-Transfer-Encoding: 8bit\r\n\r\n".getBytes();/*** 分隔符*/private String mBoundary = null;/*** 输出流*/ByteArrayOutputStream mOutputStream = new ByteArrayOutputStream();public MultipartEntity() {this.mBoundary = generateBoundary();}/*** 生成分隔符** @return*/private final String generateBoundary() {final StringBuffer buf = new StringBuffer();final Random rand = new Random();for (int i = 0; i < 30; i++) {buf.append(MULTIPART_CHARS[rand.nextInt(MULTIPART_CHARS.length)]);}return buf.toString();}/*** 参数开头的分隔符** @throws IOException*/private void writeFirstBoundary() throws IOException {mOutputStream.write(("--" + mBoundary + "\r\n").getBytes());}/*** 添加文本参数** @param paramName* @param value*/public void addStringPart(final String paramName, final String value) {writeToOutputStream(paramName, value.getBytes(), TYPE_TEXT_CHARSET, BIT_ENCODING, "");}/*** 将数据写入到输出流中** @param paramName* @param rawData* @param type* @param encodingBytes* @param fileName*/private void writeToOutputStream(String paramName, byte[] rawData, String type,byte[] encodingBytes,String fileName) {try {writeFirstBoundary();mOutputStream.write((CONTENT_TYPE + type + NEW_LINE_STR).getBytes());mOutputStream.write(getContentDispositionBytes(paramName, fileName));mOutputStream.write(encodingBytes);mOutputStream.write(rawData);mOutputStream.write(NEW_LINE_STR.getBytes());} catch (final IOException e) {e.printStackTrace();}}/*** 添加二进制参数, 例如Bitmap的字节流参数** @param paramName* @param rawData*/public void addBinaryPart(String paramName, final byte[] rawData) {writeToOutputStream(paramName, rawData, TYPE_OCTET_STREAM, BINARY_ENCODING,paramName);}/*** 添加文件参数,可以实现文件上传功能** @param key* @param file*/public void addFilePart(final String key, final File file) {InputStream fin = null;try {fin = new FileInputStream(file);writeFirstBoundary();final String type = CONTENT_TYPE + TYPE_OCTET_STREAM + NEW_LINE_STR;mOutputStream.write(getContentDispositionBytes(key, file.getName()));mOutputStream.write(type.getBytes());mOutputStream.write(BINARY_ENCODING);final byte[] tmp = new byte[4096];int len = 0;while ((len = fin.read(tmp)) != -1) {mOutputStream.write(tmp, 0, len);}mOutputStream.flush();} catch (final IOException e) {e.printStackTrace();} finally {closeSilently(fin);}}private void closeSilently(Closeable closeable) {try {if (closeable != null) {closeable.close();}} catch (final IOException e) {e.printStackTrace();}}private byte[] getContentDispositionBytes(String paramName, String fileName) {StringBuilder stringBuilder = new StringBuilder();stringBuilder.append(CONTENT_DISPOSITION + "form-data; name=\"" + paramName + "\"");// 文本参数没有filename参数,设置为空即可  if (fileName != null && !"".equals(fileName)) {stringBuilder.append("; filename=\""+ fileName + "\"");}return stringBuilder.append(NEW_LINE_STR).toString().getBytes();}@Overridepublic long getContentLength() {return mOutputStream.toByteArray().length;}@Overridepublic Header getContentType() {return new BasicHeader("Content-Type", "multipart/form-data; boundary=" + mBoundary);}@Overridepublic boolean isChunked() {return false;}@Overridepublic boolean isRepeatable() {return false;}@Overridepublic boolean isStreaming() {return false;}@Overridepublic void writeTo(final OutputStream outstream) throws IOException {// 参数最末尾的结束符  final String endString = "--" + mBoundary + "--\r\n";// 写入结束符  mOutputStream.write(endString.getBytes());//  outstream.write(mOutputStream.toByteArray());}@Overridepublic Header getContentEncoding() {return null;}@Overridepublic void consumeContent() throws IOException,UnsupportedOperationException {if (isStreaming()) {throw new UnsupportedOperationException("Streaming entity does not implement #consumeContent()");}}@Overridepublic InputStream getContent() {return new ByteArrayInputStream(mOutputStream.toByteArray());}
}

(7)MultipartRequest

public class MultipartRequest extends Request<String> {private MultipartEntity mMultiPartEntity;private Map<String, String> mHeaders = new HashMap<String, String>();private final Response.Listener<String> mListener;/*** Creates a new request with the given url.** @param url      URL to fetch the string at* @param listener Listener to receive the String response*/public MultipartRequest(String url, Response.Listener<String> listener) {this(url, listener, null);}/*** Creates a new POST request.** @param url           URL to fetch the string at* @param listener      Listener to receive the String response* @param errorListener Error listener, or null to ignore errors*/public MultipartRequest(String url, Response.Listener<String> listener, Response.ErrorListener errorListener) {super(Method.POST, url, errorListener);mListener = listener;}/*** @return*/public MultipartEntity getMultiPartEntity() {if (mMultiPartEntity == null) {mMultiPartEntity = new MultipartEntity();}return mMultiPartEntity;}public void setmMultiPartEntity(MultipartEntity mMultiPartEntity) {this.mMultiPartEntity = mMultiPartEntity;}@Overridepublic String getBodyContentType() {return mMultiPartEntity.getContentType().getValue();}public void addHeader(String key, String value) {mHeaders.put(key, value);}@Overridepublic Map<String, String> getHeaders() throws AuthFailureError {return mHeaders;}@Overridepublic byte[] getBody() {ByteArrayOutputStream bos = new ByteArrayOutputStream();try {// multipart body  mMultiPartEntity.writeTo(bos);} catch (IOException e) {Log.e("", "IOException writing to ByteArrayOutputStream");}return bos.toByteArray();}@Overrideprotected Response<String> parseNetworkResponse(NetworkResponse response) {String parsed = "";try {parsed = new String(response.data, HttpHeaderParser.parseCharset(response.headers));} catch (UnsupportedEncodingException e) {parsed = new String(response.data);}return Response.success(parsed, HttpHeaderParser.parseCacheHeaders(response));}@Overrideprotected void deliverResponse(String response) {if (mListener != null) {mListener.onResponse(response);}}}

(8)VolleyHelper

public class VolleyHelper {private static VolleyHelper mInstance;private RequestQueue mRequestQueue;private static Context mCtx;private VolleyHelper(Context context) {mCtx = context;mRequestQueue = getRequestQueue();}public static synchronized VolleyHelper getInstance(Context context) {if (mInstance == null) {mInstance = new VolleyHelper(context);}return mInstance;}public RequestQueue getRequestQueue() {   if (mRequestQueue == null) {// getApplicationContext() is key, it keeps you from leaking the// Activity or BroadcastReceiver if someone passes one in.if (mCtx==null){return null;}mRequestQueue = Volley.newRequestQueue(mCtx.getApplicationContext());}return mRequestQueue; }public <T> boolean addToRequestQueue(Request<T> req) {if (getRequestQueue()==null){return false;}req.setRetryPolicy(new DefaultRetryPolicy(10000, 0, 1.0f));getRequestQueue().add(req);return true;}public void clearRequestQueue(){if (getRequestQueue()!=null){getRequestQueue().cancelAll(mCtx.getApplicationContext());}}}

8.您可能遇到的问题

（1）

现象：

Face++ 底层使用的是Volley网络请求 我使用的时候第一个错就是 Face++SDK中关于Volley的包 全部报错

解决：在我们的项目中重新导入 Volley 的依赖

implementation 'com.mcxiaoke.volley:library:1.0.19'

（2）Face++SDK并没有把相关识别的方法弄成API 在CV的时候务必CV完整

（3）Face++集成从看Demo到看文档集成起来也是蛮顺利的祝快快集成

（4）我看了关于Face++的博客本质是我们用户输入真实姓名和身份证号以后 Face++会调取身份证和我们的人脸进行比对

Face++ 集成就到这里了，希望能给您带来帮助。