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隨著發(fā)展大多數(shù)App現(xiàn)在都會用到身份證，銀行卡等識別功能，今天就集成一下百度的OCR識別功能，或不多說，開始整：
第一步：先登錄百度智能云

登錄進(jìn)入，沒有百度賬號的需要注冊一下，進(jìn)入界面找到如下圖文字識別

進(jìn)入文字識別主界面，可以看到一些你集成百度OCR識別功能的調(diào)用詳細(xì)數(shù)據(jù)的，如下圖

然后點(diǎn)擊創(chuàng)建應(yīng)用(借用下百度文檔圖片)

這里因?yàn)楸ＷCAk的安全所以百度希望通過授權(quán)的方式初始化Ak,因?yàn)榉诺巾椖坷锩婧苋菀妆粍e人破解

下載如上圖的文件，然后放到我們需要集成的應(yīng)用里面的main下面新建一個assets文件里面

做完這些還有一個最重要的前期準(zhǔn)備，那就是去下載SDK(http://ai.baidu.com/sdk/#ocr)
下載完成后，得到壓縮包，解壓如下圖

做完這些后就可以開始集成了
1.(必須)將下載包libs目錄中的ocr-sdk.jar文件拷貝到工程libs目錄中，并加入工程依賴。
2.(必須)將libs目錄下armeabi，arm64-v8a，armeabi-v7a，x86文件夾按需添加到android studio工程src/main/jniLibs目錄中。這里如果不想手動創(chuàng)建jniLibs這這個文件夾，只需要在gradle文件里面的Android下加上如下圖這句話

 sourceSets {
        main {
            jniLibs.srcDirs = ['libs']
        }
    }

3.可選)如果需要使用UI模塊，請在Android studio中以模塊方式導(dǎo)入下載包中的ocr-ui文件夾。這個看個人意愿，如果需求可以自己去實(shí)現(xiàn)，這里就介紹導(dǎo)入的，很簡單只需要

然后一路next即可。

然后就可以實(shí)現(xiàn)功能了，下面是項目目錄以及代碼

package com.qy.myocrdemo;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;

import com.baidu.ocr.sdk.OCR;
import com.baidu.ocr.sdk.OnResultListener;
import com.baidu.ocr.sdk.exception.OCRError;
import com.baidu.ocr.sdk.model.AccessToken;
import com.baidu.ocr.ui.camera.CameraActivity;
import com.qy.myocrdemo.activity.IDCardActivity;
import com.qy.myocrdemo.utils.FileUtil;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;

import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;


/**
 * 主頁
 */
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    TextView tvResult;
    Button btn, btn1, btn2, btn3, btn4, btn5, btn6, btn7, btn8, btn9, btn10, btn11, btn12, btn13, btn14, btn15, btn16;
    private static final int REQUEST_CODE_GENERAL = 105;
    private static final int REQUEST_CODE_GENERAL_BASIC = 106;
    private static final int REQUEST_CODE_ACCURATE_BASIC = 107;
    private static final int REQUEST_CODE_ACCURATE = 108;
    private static final int REQUEST_CODE_GENERAL_ENHANCED = 109;
    private static final int REQUEST_CODE_GENERAL_WEBIMAGE = 110;
    private static final int REQUEST_CODE_BANKCARD = 111;
    private static final int REQUEST_CODE_VEHICLE_LICENSE = 120;
    private static final int REQUEST_CODE_DRIVING_LICENSE = 121;
    private static final int REQUEST_CODE_LICENSE_PLATE = 122;
    private static final int REQUEST_CODE_BUSINESS_LICENSE = 123;
    private static final int REQUEST_CODE_RECEIPT = 124;

    private static final int REQUEST_CODE_PASSPORT = 125;
    private static final int REQUEST_CODE_NUMBERS = 126;
    private static final int REQUEST_CODE_QRCODE = 127;
    private static final int REQUEST_CODE_BUSINESSCARD = 128;
    private static final int REQUEST_CODE_HANDWRITING = 129;
    private static final int REQUEST_CODE_LOTTERY = 130;
    private static final int REQUEST_CODE_VATINVOICE = 131;
    private static final int REQUEST_CODE_CUSTOM = 132;


    private boolean hasGotToken = false;

    private AlertDialog.Builder alertDialog;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        tvResult = findViewById(R.id.result);
        btn = findViewById(R.id.btn);
        btn1 = findViewById(R.id.btn1);
        btn2 = findViewById(R.id.btn2);
        btn3 = findViewById(R.id.btn3);
        btn4 = findViewById(R.id.btn4);
        btn5 = findViewById(R.id.btn5);
        btn6 = findViewById(R.id.btn6);
        btn7 = findViewById(R.id.btn7);
        btn8 = findViewById(R.id.btn8);
        btn9 = findViewById(R.id.btn9);
        btn10 = findViewById(R.id.btn10);
        btn11 = findViewById(R.id.btn11);
        btn12 = findViewById(R.id.btn12);
        btn13 = findViewById(R.id.btn13);
        btn14 = findViewById(R.id.btn14);
        btn15 = findViewById(R.id.btn15);
        btn16 = findViewById(R.id.btn16);
        alertDialog = new AlertDialog.Builder(this);
        initAccessToken();
        btn.setOnClickListener(this);
        btn1.setOnClickListener(this);
        btn2.setOnClickListener(this);
        btn3.setOnClickListener(this);
        btn4.setOnClickListener(this);
        btn5.setOnClickListener(this);
        btn6.setOnClickListener(this);
        btn7.setOnClickListener(this);
        btn8.setOnClickListener(this);
        btn9.setOnClickListener(this);
        btn10.setOnClickListener(this);
        btn11.setOnClickListener(this);
        btn12.setOnClickListener(this);
        btn13.setOnClickListener(this);
        btn14.setOnClickListener(this);
        btn15.setOnClickListener(this);
        btn16.setOnClickListener(this);
    }

    /**
     * 檢測token是否未成功獲取
     *
     * @return
     */
    private boolean checkTokenStatus() {
        if (!hasGotToken) {
            Toast.makeText(getApplicationContext(), "token還未成功獲取", Toast.LENGTH_LONG).show();
        }
        return hasGotToken;
    }

    /**
     * 以license文件方式初始化
     */
    private void initAccessToken() {
        OCR.getInstance(this).initAccessToken(new OnResultListener<AccessToken>() {
            @Override
            public void onResult(AccessToken accessToken) {
                String token = accessToken.getAccessToken();
                hasGotToken = true;
            }

            @Override
            public void onError(OCRError error) {
                error.printStackTrace();
                alertText("licence方式獲取token失敗", error.getMessage());
            }
        }, getApplicationContext());
    }

    /**
     * 提示彈出框
     *
     * @param title
     * @param message
     */
    private void alertText(final String title, final String message) {
        this.runOnUiThread(new Runnable() {
            @Override
            public void run() {
                alertDialog.setTitle(title)
                        .setMessage(message)
                        .setPositiveButton("確定", null)
                        .show();
            }
        });
    }


    /**
     * 回調(diào)結(jié)果
     *
     * @param requestCode
     * @param resultCode
     * @param data
     */
    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        // 識別成功回調(diào)，通用文字識別（含位置信息）
        if (requestCode == REQUEST_CODE_GENERAL && resultCode == Activity.RESULT_OK) {
            RecognizeService.recGeneral(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，通用文字識別（含位置信息）", result);
                        }
                    });
        }

        // 識別成功回調(diào)，通用文字識別（含位置信息高精度版）
        if (requestCode == REQUEST_CODE_ACCURATE && resultCode == Activity.RESULT_OK) {
            RecognizeService.recAccurate(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，通用文字識別（含位置信息高精度版）", result);
                        }
                    });
        }

        // 識別成功回調(diào)，通用文字識別
        if (requestCode == REQUEST_CODE_GENERAL_BASIC && resultCode == Activity.RESULT_OK) {
            RecognizeService.recGeneralBasic(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，通用文字識別", result);
                        }
                    });
        }

        // 識別成功回調(diào)，通用文字識別（高精度版）
        if (requestCode == REQUEST_CODE_ACCURATE_BASIC && resultCode == Activity.RESULT_OK) {
            RecognizeService.recAccurateBasic(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，通用文字識別（高精度版）", result);
                        }
                    });
        }

        // 識別成功回調(diào)，通用文字識別（含生僻字版）
        if (requestCode == REQUEST_CODE_GENERAL_ENHANCED && resultCode == Activity.RESULT_OK) {
            RecognizeService.recGeneralEnhanced(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，通用文字識別（含生僻字版）", result);
                        }
                    });
        }

        // 識別成功回調(diào)，網(wǎng)絡(luò)圖片文字識別
        if (requestCode == REQUEST_CODE_GENERAL_WEBIMAGE && resultCode == Activity.RESULT_OK) {
            RecognizeService.recWebimage(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，網(wǎng)絡(luò)圖片文字識別", result);
                        }
                    });
        }

        // 識別成功回調(diào)，銀行卡識別
        if (requestCode == REQUEST_CODE_BANKCARD && resultCode == Activity.RESULT_OK) {
            RecognizeService.recBankCard(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，銀行卡識別", result);
                        }
                    });
        }

        // 識別成功回調(diào)，行駛證識別
        if (requestCode == REQUEST_CODE_VEHICLE_LICENSE && resultCode == Activity.RESULT_OK) {
            RecognizeService.recVehicleLicense(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，行駛證識別", result);
                        }
                    });
        }

        // 識別成功回調(diào)，駕駛證識別
        if (requestCode == REQUEST_CODE_DRIVING_LICENSE && resultCode == Activity.RESULT_OK) {
            RecognizeService.recDrivingLicense(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，駕駛證識別", result);
                        }
                    });
        }

        // 識別成功回調(diào)，車牌識別
        if (requestCode == REQUEST_CODE_LICENSE_PLATE && resultCode == Activity.RESULT_OK) {
            RecognizeService.recLicensePlate(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，車牌識別", result);
                        }
                    });
        }

        // 識別成功回調(diào)，營業(yè)執(zhí)照識別
        if (requestCode == REQUEST_CODE_BUSINESS_LICENSE && resultCode == Activity.RESULT_OK) {
            RecognizeService.recBusinessLicense(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，營業(yè)執(zhí)照識別", result);
                        }
                    });
        }

        // 識別成功回調(diào)，通用票據(jù)識別
        if (requestCode == REQUEST_CODE_RECEIPT && resultCode == Activity.RESULT_OK) {
            RecognizeService.recReceipt(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，通用票據(jù)識別", result);
                        }
                    });
        }

        // 識別成功回調(diào)，護(hù)照
        if (requestCode == REQUEST_CODE_PASSPORT && resultCode == Activity.RESULT_OK) {
            RecognizeService.recPassport(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，護(hù)照", result);
                        }
                    });
        }

        // 識別成功回調(diào)，二維碼
        if (requestCode == REQUEST_CODE_QRCODE && resultCode == Activity.RESULT_OK) {
            RecognizeService.recQrcode(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，二維碼", result);
                        }
                    });
        }

        // 識別成功回調(diào)，彩票
        if (requestCode == REQUEST_CODE_LOTTERY && resultCode == Activity.RESULT_OK) {
            RecognizeService.recLottery(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，彩票", result);
                        }
                    });
        }

        // 識別成功回調(diào)，增值稅發(fā)票
        if (requestCode == REQUEST_CODE_VATINVOICE && resultCode == Activity.RESULT_OK) {
            RecognizeService.recVatInvoice(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，增值稅發(fā)票", result);
                        }
                    });
        }

        // 識別成功回調(diào)，數(shù)字
        if (requestCode == REQUEST_CODE_NUMBERS && resultCode == Activity.RESULT_OK) {
            RecognizeService.recNumbers(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，數(shù)字", result);
                        }
                    });
        }

        // 識別成功回調(diào)，手寫
        if (requestCode == REQUEST_CODE_HANDWRITING && resultCode == Activity.RESULT_OK) {
            RecognizeService.recHandwriting(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，手寫", result);
                        }
                    });
        }

        // 識別成功回調(diào)，名片
        if (requestCode == REQUEST_CODE_BUSINESSCARD && resultCode == Activity.RESULT_OK) {
            RecognizeService.recBusinessCard(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，名片", result);
                        }
                    });
        }

        // 識別成功回調(diào)，自定義模板
        if (requestCode == REQUEST_CODE_CUSTOM && resultCode == Activity.RESULT_OK) {
            RecognizeService.recCustom(this, FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath(),
                    new RecognizeService.ServiceListener() {
                        @Override
                        public void onResult(String result) {
                            tvResult.setText("結(jié)果：" + result);
                            alertText("識別成功回調(diào)，自定義模板", result);
                        }
                    });
        }
    }

    /**
     * 釋放資源
     */
    @Override
    protected void onDestroy() {
        super.onDestroy();
        // 釋放內(nèi)存資源
        OCR.getInstance(this).release();
    }

    @Override
    public void onClick(View view) {
        Intent intent = null;
        //檢測token是否成功獲取
        if (!checkTokenStatus()) {
            return;
        }
        switch (view.getId()) {
            case R.id.btn:
                //身份證識別
                intent = new Intent(MainActivity.this, IDCardActivity.class);
                startActivity(intent);
                break;
            case R.id.btn1:
                //通用文字識別
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_GENERAL);
                startActivityForResult(intent, REQUEST_CODE_GENERAL_BASIC);
                break;
            case R.id.btn2:
                //二維碼識別
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_GENERAL);
                startActivityForResult(intent, REQUEST_CODE_QRCODE);
                break;
            case R.id.btn3:
                //網(wǎng)絡(luò)圖片文字識別
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_GENERAL);
                startActivityForResult(intent, REQUEST_CODE_GENERAL_WEBIMAGE);
                break;
            case R.id.btn4:
                //銀行卡識別
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_BANK_CARD);
                startActivityForResult(intent, REQUEST_CODE_BANKCARD);
                break;
            case R.id.btn5:
                //行駛證識別
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_GENERAL);
                startActivityForResult(intent, REQUEST_CODE_VEHICLE_LICENSE);
                break;
            case R.id.btn6:
                //駕駛證識別
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_GENERAL);
                startActivityForResult(intent, REQUEST_CODE_DRIVING_LICENSE);
                break;
            case R.id.btn7:
                //車牌識別
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_GENERAL);
                startActivityForResult(intent, REQUEST_CODE_LICENSE_PLATE);
                break;
            case R.id.btn8:
                //營業(yè)執(zhí)照識別
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_GENERAL);
                startActivityForResult(intent, REQUEST_CODE_BUSINESS_LICENSE);
                break;
            case R.id.btn9:
                //通用票據(jù)識別
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_GENERAL);
                startActivityForResult(intent, REQUEST_CODE_RECEIPT);
                break;
            case R.id.btn10:
                //護(hù)照識別
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_PASSPORT);
                startActivityForResult(intent, REQUEST_CODE_PASSPORT);
                break;
            case R.id.btn11:
                //數(shù)字識別
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_GENERAL);
                startActivityForResult(intent, REQUEST_CODE_NUMBERS);
                break;
            case R.id.btn12:
                //名片識別
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_GENERAL);
                startActivityForResult(intent, REQUEST_CODE_BUSINESSCARD);
                break;
            case R.id.btn13:
                //增值稅發(fā)票識別
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_GENERAL);
                startActivityForResult(intent, REQUEST_CODE_VATINVOICE);
                break;
            case R.id.btn14:
                //彩票識別
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_GENERAL);
                startActivityForResult(intent, REQUEST_CODE_LOTTERY);
                break;
            case R.id.btn15:
                //手寫識別
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_GENERAL);
                startActivityForResult(intent, REQUEST_CODE_HANDWRITING);
                break;
            case R.id.btn16:
                //自定義模板
                intent = new Intent(MainActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE,
                        CameraActivity.CONTENT_TYPE_GENERAL);
                startActivityForResult(intent, REQUEST_CODE_CUSTOM);
                break;

        }
    }
}

$\color{red}{MainActivity的布局文件}$

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center_vertical"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="身份證識別" />

        <Button
            android:id="@+id/btn1"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="通用文字識別" />

    </LinearLayout>

    <Button
        android:id="@+id/btn2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:padding="15dp"
        android:text="二維碼識別(失敗據(jù)說要創(chuàng)建工單開通權(quán)限有點(diǎn)麻煩)" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center_vertical"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn3"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="網(wǎng)絡(luò)圖片文字識別" />

        <Button
            android:id="@+id/btn4"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="銀行卡識別" />

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center_vertical"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn5"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="行駛證識別" />

        <Button
            android:id="@+id/btn6"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="駕駛證識別" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center_vertical"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn7"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="車牌識別(有時會失敗)" />

        <Button
            android:id="@+id/btn8"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="營業(yè)執(zhí)照識別" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center_vertical"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn9"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="通用票據(jù)識別" />

        <Button
            android:id="@+id/btn10"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="護(hù)照識別(容易檢測失敗)" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center_vertical"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn11"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="數(shù)字識別" />

        <Button
            android:id="@+id/btn12"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="名片識別(多次沒有成功)" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center_vertical"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn13"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="增值稅發(fā)票識別" />

        <Button
            android:id="@+id/btn14"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="彩票識別(多次沒有成功)" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center_vertical"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn15"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="手寫識別" />

        <Button
            android:id="@+id/btn16"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_weight="1"
            android:padding="15dp"
            android:text="自定義模板(不明白)" />
    </LinearLayout>

    <TextView
        android:id="@+id/result"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="15dp"
        android:text="Hello World!"
        android:textSize="16sp" />

</LinearLayout>

$\color{red}{身份證識別IDCardActivity}$

package com.qy.myocrdemo.activity;

import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;

import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.text.TextUtils;
import android.view.View;

import com.baidu.ocr.sdk.OCR;
import com.baidu.ocr.sdk.OnResultListener;
import com.baidu.ocr.sdk.exception.OCRError;
import com.baidu.ocr.sdk.model.IDCardParams;
import com.baidu.ocr.sdk.model.IDCardResult;
import com.baidu.ocr.ui.camera.CameraActivity;
import com.baidu.ocr.ui.camera.CameraNativeHelper;
import com.qy.myocrdemo.R;
import com.qy.myocrdemo.utils.FileUtil;

import java.io.File;

/**
 * 身份證識別
 */
public class IDCardActivity extends AppCompatActivity {

    private static final int REQUEST_CODE_PICK_IMAGE_FRONT = 201;
    private static final int REQUEST_CODE_PICK_IMAGE_BACK = 202;
    private static final int REQUEST_CODE_CAMERA = 102;
    private AlertDialog.Builder alertDialog;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_idcard);

        alertDialog = new AlertDialog.Builder(this);

        // 身份證正面拍照
        findViewById(R.id.id_card_front_button).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(IDCardActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE, CameraActivity.CONTENT_TYPE_ID_CARD_FRONT);
                startActivityForResult(intent, REQUEST_CODE_CAMERA);
            }
        });
        // 身份證正面掃描
        findViewById(R.id.id_card_front_button_native).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(IDCardActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_NATIVE_ENABLE,
                        true);
                // KEY_NATIVE_MANUAL設(shè)置了之后CameraActivity中不再自動初始化和釋放模型
                // 請手動使用CameraNativeHelper初始化和釋放模型
                // 推薦這樣做，可以避免一些activity切換導(dǎo)致的不必要的異常
                intent.putExtra(CameraActivity.KEY_NATIVE_MANUAL,
                        true);
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE, CameraActivity.CONTENT_TYPE_ID_CARD_FRONT);
                startActivityForResult(intent, REQUEST_CODE_CAMERA);
            }
        });

        // 身份證反面拍照
        findViewById(R.id.id_card_back_button).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(IDCardActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE, CameraActivity.CONTENT_TYPE_ID_CARD_BACK);
                startActivityForResult(intent, REQUEST_CODE_CAMERA);
            }
        });
        // 身份證反面掃描
        findViewById(R.id.id_card_back_button_native).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(IDCardActivity.this, CameraActivity.class);
                intent.putExtra(CameraActivity.KEY_OUTPUT_FILE_PATH,
                        FileUtil.getSaveFile(getApplication()).getAbsolutePath());
                intent.putExtra(CameraActivity.KEY_NATIVE_ENABLE,
                        true);
                // KEY_NATIVE_MANUAL設(shè)置了之后CameraActivity中不再自動初始化和釋放模型
                // 請手動使用CameraNativeHelper初始化和釋放模型
                // 推薦這樣做，可以避免一些activity切換導(dǎo)致的不必要的異常
                intent.putExtra(CameraActivity.KEY_NATIVE_MANUAL,
                        true);
                intent.putExtra(CameraActivity.KEY_CONTENT_TYPE, CameraActivity.CONTENT_TYPE_ID_CARD_BACK);
                startActivityForResult(intent, REQUEST_CODE_CAMERA);
            }
        });
    }

    /**
     * 彈出提示框
     *
     * @param title
     * @param message
     */
    private void alertText(final String title, final String message) {
        this.runOnUiThread(new Runnable() {
            @Override
            public void run() {
                alertDialog.setTitle(title)
                        .setMessage(message)
                        .setPositiveButton("確定", null)
                        .show();
            }
        });
    }


    private void recIDCard(String idCardSide, String filePath) {
        IDCardParams param = new IDCardParams();
        param.setImageFile(new File(filePath));
        // 設(shè)置身份證正反面
        param.setIdCardSide(idCardSide);
        // 設(shè)置方向檢測
        param.setDetectDirection(true);
        // 設(shè)置圖像參數(shù)壓縮質(zhì)量0-100, 越大圖像質(zhì)量越好但是請求時間越長。 不設(shè)置則默認(rèn)值為20
        param.setImageQuality(20);

        OCR.getInstance(this).recognizeIDCard(param, new OnResultListener<IDCardResult>() {
            @Override
            public void onResult(IDCardResult result) {
                if (result != null) {
                    alertText("", result.toString());
                }
            }

            @Override
            public void onError(OCRError error) {
                alertText("", error.getMessage());
            }
        });
    }

    private String getRealPathFromURI(Uri contentURI) {
        String result;
        Cursor cursor = getContentResolver().query(contentURI, null, null, null, null);
        if (cursor == null) { // Source is Dropbox or other similar local file path
            result = contentURI.getPath();
        } else {
            cursor.moveToFirst();
            int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
            result = cursor.getString(idx);
            cursor.close();
        }
        return result;
    }


    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == REQUEST_CODE_PICK_IMAGE_FRONT && resultCode == Activity.RESULT_OK) {
            Uri uri = data.getData();
            String filePath = getRealPathFromURI(uri);
            recIDCard(IDCardParams.ID_CARD_SIDE_FRONT, filePath);
        }

        if (requestCode == REQUEST_CODE_PICK_IMAGE_BACK && resultCode == Activity.RESULT_OK) {
            Uri uri = data.getData();
            String filePath = getRealPathFromURI(uri);
            recIDCard(IDCardParams.ID_CARD_SIDE_BACK, filePath);
        }

        if (requestCode == REQUEST_CODE_CAMERA && resultCode == Activity.RESULT_OK) {
            if (data != null) {
                String contentType = data.getStringExtra(CameraActivity.KEY_CONTENT_TYPE);
                String filePath = FileUtil.getSaveFile(getApplicationContext()).getAbsolutePath();
                if (!TextUtils.isEmpty(contentType)) {
                    if (CameraActivity.CONTENT_TYPE_ID_CARD_FRONT.equals(contentType)) {
                        recIDCard(IDCardParams.ID_CARD_SIDE_FRONT, filePath);
                    } else if (CameraActivity.CONTENT_TYPE_ID_CARD_BACK.equals(contentType)) {
                        recIDCard(IDCardParams.ID_CARD_SIDE_BACK, filePath);
                    }
                }
            }
        }
    }

    @Override
    protected void onDestroy() {
        // 釋放本地質(zhì)量控制模型
        CameraNativeHelper.release();
        super.onDestroy();
    }
}

$\color{red}{IDCardActivity布局文件}$

<?xml version="1.0" encoding="utf-8"?><!--
  ~ Copyright (C) 2017 Baidu, Inc. All Rights Reserved.
  -->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_idcard"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingLeft="@dimen/cardview_default_radius"
    android:paddingTop="@dimen/cardview_default_radius"
    android:paddingRight="@dimen/cardview_default_radius"
    android:paddingBottom="@dimen/cardview_default_radius"
    tools:context=".activity.IDCardActivity">

    <Button
        android:id="@+id/gallery_button_front"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="相冊選擇 正面"
        android:visibility="gone"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/gallery_button_back"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="相冊選擇 反面"
        android:visibility="gone"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/id_card_front_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="身份證正面"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/id_card_front_button_native"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="身份證正面(本地質(zhì)量控制)"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/id_card_back_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="身份證反面"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/id_card_back_button_native"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="身份證反面(本地質(zhì)量控制)"
        tools:ignore="HardcodedText" />

    <TextView
        android:id="@+id/info_text_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</LinearLayout>

$\color{red}{彈出提示布局文件}$

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 2017 Baidu, Inc. All Rights Reserved.
  -->
<ScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:scrollbars="vertical"
    android:fadingEdge="vertical"
    style="@style/result_pop_scroll"
    android:id="@+id/result_pop"
    >
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    style="@style/result_pop_scrollinner"
    >
  <TextView
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"
      android:id="@+id/result_text"
      />
</LinearLayout>
</ScrollView>

到這里集成就完成了，有點(diǎn)爛，大家有需要的湊合看吧

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Android-集成百度OCR身份證,銀行卡等多種識別功能

Android-集成百度OCR身份證,銀行卡等多種識別功能

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Android-集成百度OCR身份證,銀行卡等多種識別功能

相關(guān)閱讀更多精彩內(nèi)容

友情鏈接更多精彩內(nèi)容

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