Android实现人脸支付的示例代码

2024-04-02 19:04:59 546人浏览泡泡鱼

摘要

目录效果展示功能实现人脸支付密码框输入支付尾言效果展示人脸支付效果视频密码框输入支付效果视频因为密码支付时会调起系统安全键盘，开启自动保护功能，防止泄露，会导致输入密码时录屏

效果展示

人脸支付效果视频

密码框输入支付效果视频

因为密码支付时会调起系统安全键盘，开启自动保护功能，防止泄露，会导致输入密码时录屏黑屏，故使用另一台手机拍摄。

功能实现

人脸支付

api初始化

        ftEngine = new FaceEngine();
        ftInitCode = ftEngine.init(this, DetectMode.ASF_DETECT_MODE_VIDEO, ConfigUtil.getFtOrient(this),
                16, MAX_DETECT_NUM, FaceEngine.ASF_FACE_DETECT);

        frEngine = new FaceEngine();
        frInitCode = frEngine.init(this, DetectMode.ASF_DETECT_MODE_IMAGE, DetectFaceOrientPriority.ASF_OP_0_ONLY,
                16, MAX_DETECT_NUM, FaceEngine.ASF_FACE_RECOGNITION);

        flEngine = new FaceEngine();
        flInitCode = flEngine.init(this, DetectMode.ASF_DETECT_MODE_IMAGE, DetectFaceOrientPriority.ASF_OP_0_ONLY,
                16, MAX_DETECT_NUM, FaceEngine.ASF_LIVENESS);

人脸特征提取

    private void searchFace(final FaceFeature frFace, final Integer requestId) {
        Observable.create(new ObservableOnSubscribe<CompareResult>() {
                    @Override
                    public void subscribe(ObservableEmitter<CompareResult> emitter) {
                        CompareResult compareResult = FaceServer.getInstance().getTopOfFaceLib(frFace);
                        emitter.onNext(compareResult);
                    }
                })
                .subscribeOn( Schedulers.computation())
                .observeOn( AndroidSchedulers.mainThread())
                .subscribe(new Observer<CompareResult>() {
                    @Override
                    public void onSubscribe(Disposable d) {

                    }
                    @Override
                    public void onNext(CompareResult compareResult) {
                        if (compareResult == null || compareResult.getUserName() == null) {
                            requestFeatureStatusMap.put(requestId, RequestFeatureStatus.FAILED);
                            faceHelper.setName(requestId, "VISITOR " + requestId);
                            return;
                        }
                        if (compareResult.getSimilar() > SIMILAR_THRESHOLD) {
                            boolean isAdded = false;
                            if (compareResultList == null) {
                                requestFeatureStatusMap.put(requestId, RequestFeatureStatus.FAILED);
                                faceHelper.setName(requestId, "VISITOR " + requestId);
                                return;
                            }
                            for (CompareResult compareResult1 : compareResultList) {
                                if (compareResult1.getTrackId() == requestId) {
                                    isAdded = true;
                                    break;
                                }
                            }
                            if (!isAdded) {
                                //对于多人脸搜索，假如最大显示数量为 MAX_DETECT_NUM 且有新的人脸进入，则以队列的形式移除
                                if (compareResultList.size() >= MAX_DETECT_NUM) {
                                    compareResultList.remove(0);
                                    adapter.notifyItemRemoved(0);
                                }
                                //添加显示人员时，保存其trackId
                                compareResult.setTrackId(requestId);
                                compareResultList.add(compareResult);
                                adapter.notifyItemInserted(compareResultList.size() - 1);
                            }
                            requestFeatureStatusMap.put(requestId, RequestFeatureStatus.SUCCEED);
                            faceHelper.setName(requestId, getString(R.string.recognize_success_notice, compareResult.getUserName()));

                        } else {
                            faceHelper.setName(requestId, getString(R.string.recognize_failed_notice, "NOT_REGISTERED"));
                            retryRecognizeDelayed(requestId);
                        }
                    }

返回支付结果

根据匹配人脸注册时所获取的trackid，判断识别结果

Integer recognizeStatus = requestFeatureStatusMap.get(facePreviewInfoList.get(i).getTrackId());

根据返回码修改识别框颜色，并修改跳转状态的值

if (recognizeStatus != null) {
                handler.sendEmptyMessageDelayed( 1,1000 );
                if (recognizeStatus == RequestFeatureStatus.FAILED) {
                    color = RecognizeColor.COLOR_FAILED;
                    returnFlag = false;
                }
                if (recognizeStatus == RequestFeatureStatus.SUCCEED) {
                    color = RecognizeColor.COLOR_SUCCESS;
                    returnFlag = true;
                }
            }

利用异步通信进行延迟跳转

    Handler handler = new Handler(  ){
        @Override
        public void handleMessage(@NonNull Message msg) {
            super.handleMessage( msg );
            if (msg.what == 1){
                CountDown();
                handler.sendEmptyMessageDelayed( 1,1000 );
            }
        }
    };

密码框输入支付

自定义密码输入框控件

public class PayPwdEditText extends RelativeLayout {

    private EditText editText; //文本编辑框
    private Context context;

    private LinearLayout linearLayout; //文本密码的文本
    private TextView[] textViews; //文本数组

    private int pwdlength = 6; //密码长度， 默认6

    private OnTextFinishListener onTextFinishListener;


    public PayPwdEditText(Context context) {
        this(context, null);
    }

    public PayPwdEditText(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public PayPwdEditText(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        this.context = context;
    }

    
    public void initStyle(int bgdrawable, int pwdlength, float splilinewidth, int splilinecolor, int pwdcolor, int pwdsize)
    {
        this.pwdlength = pwdlength;
        initEdit(bgdrawable);
        initShowInput(bgdrawable, pwdlength, splilinewidth, splilinecolor, pwdcolor, pwdsize);
    }

    
    private void initEdit(int bGColor)
    {
        editText = new EditText(context);
        editText.setBackgroundResource(bgcolor);
        editText.setCursorVisible(false);
        editText.setTextSize(0);
        //设置为密文输入模式和数字
        editText.setInputType( InputType.TYPE_NUMBER_VARIATION_PASSWord | InputType.TYPE_CLASS_NUMBER);
        //设置输入长度为6
        editText.setFilters(new InputFilter[]{new InputFilter.LengthFilter(pwdlength)});
        editText.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
                Editable etext = editText.getText();
                Selection.setSelection(etext, etext.length());
            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {

            }

            @Override
            public void afterTextChanged(Editable s) {
                initDatas(s);
                if(s.length() == pwdlength)
                {
                    if(onTextFinishListener != null)
                    {
                        onTextFinishListener.onFinish(s.toString().trim());
                    }
                }
            }
        });
        LayoutParams lp = new LayoutParams( LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
        lp.addRule( RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
        addView(editText, lp);

    }

    
    public void initShowInput(int bgcolor, int pwdlength, float slpilinewidth, int splilinecolor, int pwdcolor, int pwdsize)
    {
        //添加密码框父布局
        linearLayout = new LinearLayout(context);
        linearLayout.setBackgroundResource(bgcolor);
        LayoutParams layoutParams = new LayoutParams( LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
        linearLayout.setLayoutParams(layoutParams);
        linearLayout.setOrientation( LinearLayout.HORIZONTAL);
        addView(linearLayout);

        //添加密码框
        textViews = new TextView[pwdlength];
        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(0, LayoutParams.MATCH_PARENT);
        params.weight = 1;
        params.gravity = Gravity.CENTER;

        LinearLayout.LayoutParams params2 = new LinearLayout.LayoutParams(dip2px(context, slpilinewidth), LayoutParams.MATCH_PARENT);
        for(int i = 0; i < textViews.length; i++)
        {
            final int index = i;
            TextView textView = new TextView(context);
            textView.setGravity( Gravity.CENTER);
            textViews[i] = textView;
            textViews[i].setTextSize(pwdsize);
            textViews[i].setTextColor(context.getResources().getColor(pwdcolor));
            textViews[i].setInputType( InputType.TYPE_NUMBER_VARIATION_PASSWORD | InputType.TYPE_CLASS_NUMBER);
            linearLayout.addView(textView, params);
            if(i < textViews.length - 1)
            {
                View view = new View(context);
                view.setBackgroundColor(context.getResources().getColor(splilinecolor));
                linearLayout.addView(view, params2);
            }
        }
    }

    
    public void setShowPwd(boolean showPwd) {
        int length = textViews.length;
        for(int i = 0; i < length; i++) {
            if (showPwd) {
                textViews[i].setTransfORMationMethod( PasswordTransformationMethod.getInstance());
            } else {
                textViews[i].setTransformationMethod( HideReturnsTransformationMethod.getInstance());
            }
        }
    }

    
    public void setInputType(int type)
    {
        int length = textViews.length;
        for(int i = 0; i < length; i++) {
            textViews[i].setInputType(type);
        }
    }

    
    public void clearText()
    {
        editText.setText("");
        for(int i = 0; i < pwdlength; i++)
        {
            textViews[i].setText("");
        }
    }

    public void setOnTextFinishListener(OnTextFinishListener onTextFinishListener) {
        this.onTextFinishListener = onTextFinishListener;
    }

    
    public void initDatas(Editable s)
    {
        if(s.length() > 0)
        {
            int length = s.length();
            for(int i = 0; i < pwdlength; i++)
            {
                if(i < length)
                {
                    for(int j = 0; j < length; j++)
                    {
                        char ch = s.charAt(j);
                        textViews[j].setText( String.valueOf(ch));
                    }
                }
                else
                {
                    textViews[i].setText("");
                }
            }
        }
        else
        {
            for(int i = 0; i < pwdlength; i++)
            {
                textViews[i].setText("");
            }
        }
    }

    public String getPwdText()
    {
        if(editText != null)
            return editText.getText().toString().trim();
        return "";
    }

    public static int dip2px(Context context, float dipValue) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) (dipValue * scale + 0.5f);
    }

    public interface OnTextFinishListener
    {
        void onFinish(String str);
    }

    public void setFocus()
    {
        editText.requestFocus();
        editText.setFocusable(true);
        showKeyBord(editText);
    }

    
    public void showKeyBord(View view)
    {
        InputMethodManager imm = (InputMethodManager) context.getSystemService( Context.INPUT_METHOD_SERVICE);
        imm.showSoftInput(view, InputMethodManager.SHOW_FORCED);
    }

}

初始化控件

分别对应密码框背景、密码位数、分割线宽度、分割线颜色、字体颜色、字体大小

mPayPwdEditText.initStyle( R.drawable.bg_paypassword_style,6,0.8f,R.color.colorWhite,R.color.colorWhite,35);

布局内用法

<com.example.PayPackage.PayPwdEditText
    android:id="@+id/payPassWordEditText"
    android:layout_width="match_parent"
    android:layout_marginTop="20dp"
    android:layout_marginLeft="20dp"
    android:layout_marginRight="20dp"
    android:layout_height="35dp"/>

密码匹配

对控件进行输入事件监听，采用测试密码用例：123456，与回调接口所携带的数据进行匹配。

 mPayPwdEditText.setOnTextFinishListener( new PayPwdEditText.OnTextFinishListener() {
            @Override
            public void onFinish(String str) {
                if (str.equals( "123456" ))
                {
                    startActivity( new Intent( OrderInterface.this,PaySuccess.class ) );
                }else {
                    if (PassWordError == null) {
                        PassWordError = new Toast( OrderInterface.this );
                        View view = LayoutInflater.from( OrderInterface.this ).inflate( R.layout.passworderror,null,false );
                        ErrorTips = view.findViewById( R.id.ErrorTips );
                        PassWordError.setView( view );
                        //PassWordError.setGravity( Gravity.CENTER,0, ResHelper.dipToPx(OrderInterface.this, -100) );
                    }
                    PassWordError.show();
                    mPayPwdEditText.clearText();
                }
            }
        } );

其内部是对EditText控件进行输入事件监听。然后通过比对输入字符串长度与密码长度，然后返回其输入的字符串

            @Override
            public void afterTextChanged(Editable s) {
                initDatas(s);
                if(s.length() == pwdlength)
                {
                    if(onTextFinishListener != null)
                    {
                        onTextFinishListener.onFinish(s.toString().trim());
                    }
                }
            }