Java 在我的应用程序中集成ZXing

我需要建立一个应用程序，将识别二维码，而不强迫用户安装其他应用程序。将来，我还需要在识别代码之前处理扫描的图像（我扫描的代码将具有反转的颜色）

尝试按照以下链接中的提示和教程进行操作：

创建一些基本代码并运行应用程序后，我单击我的扫描按钮，得到一个错误，

找不到处理Intent的活动{act=com.google.zxing.client.android.Scan（has extras）}

我所做的：
创建新项目
将core-3.2.1.jar复制到libs/
添加意图调用和结果处理

我添加的意图/结果代码：

private Button scan;

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

    scan= (Button)findViewById(R.id.btnScan);

    scan.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Intent intent = new Intent("com.google.zxing.client.android.SCAN");
            intent.putExtra("SCAN_MODE", "QR_CODE_MODE");
            startActivityForResult(intent, 0);
        }
    });
}

public void onActivityResult(int requestCode, int resultCode, Intent intent) {
    if (requestCode == 0) {
        if (resultCode == RESULT_OK) {

            String contents = intent.getStringExtra("SCAN_RESULT");
            String format = intent.getStringExtra("SCAN_RESULT_FORMAT");

            // Handle successful scan
            MultiFormatWriter writer = new MultiFormatWriter();


        } else if (resultCode == RESULT_CANCELED) {
            // Handle cancel
            Log.i("App","Scan unsuccessful");
        }
    }
}

---

如何启动意图？我做错了什么？

您应该像这样启动扫描：

@Override
    public void onClick(View v) {
      IntentIntegrator integrator = new IntentIntegrator(MainActivity.this);
      integrator.setDesiredBarcodeFormats(IntentIntegrator.ALL_CODE_TYPES);
      //in case you want to customize a bit.
      integrator.setPrompt("Scan a QR/Bar code");
      integrator.setCameraId(0);
      integrator.setBeepEnabled(false);
      integrator.initiateScan();
    }

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch (requestCode) {
        case IntentIntegrator.REQUEST_CODE: {
            if (resultCode != RESULT_CANCELED) {
                IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
                String data = scanResult.getContents();
                // use this data
            } else {
                // error
            }
            break;
        }
    }
}

收到如下结果：

@Override
    public void onClick(View v) {
      IntentIntegrator integrator = new IntentIntegrator(MainActivity.this);
      integrator.setDesiredBarcodeFormats(IntentIntegrator.ALL_CODE_TYPES);
      //in case you want to customize a bit.
      integrator.setPrompt("Scan a QR/Bar code");
      integrator.setCameraId(0);
      integrator.setBeepEnabled(false);
      integrator.initiateScan();
    }

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch (requestCode) {
        case IntentIntegrator.REQUEST_CODE: {
            if (resultCode != RESULT_CANCELED) {
                IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
                String data = scanResult.getContents();
                // use this data
            } else {
                // error
            }
            break;
        }
    }
}

编辑1：

将此添加到应用程序的

build.gradle

，作为

依赖项

：

compile 'com.journeyapps:zxing-android-embedded:3.0.2@aar'
compile 'com.google.zxing:core:3.2.0'

---

您应该像这样启动扫描：

@Override
    public void onClick(View v) {
      IntentIntegrator integrator = new IntentIntegrator(MainActivity.this);
      integrator.setDesiredBarcodeFormats(IntentIntegrator.ALL_CODE_TYPES);
      //in case you want to customize a bit.
      integrator.setPrompt("Scan a QR/Bar code");
      integrator.setCameraId(0);
      integrator.setBeepEnabled(false);
      integrator.initiateScan();
    }

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch (requestCode) {
        case IntentIntegrator.REQUEST_CODE: {
            if (resultCode != RESULT_CANCELED) {
                IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
                String data = scanResult.getContents();
                // use this data
            } else {
                // error
            }
            break;
        }
    }
}

收到如下结果：

@Override
    public void onClick(View v) {
      IntentIntegrator integrator = new IntentIntegrator(MainActivity.this);
      integrator.setDesiredBarcodeFormats(IntentIntegrator.ALL_CODE_TYPES);
      //in case you want to customize a bit.
      integrator.setPrompt("Scan a QR/Bar code");
      integrator.setCameraId(0);
      integrator.setBeepEnabled(false);
      integrator.initiateScan();
    }

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch (requestCode) {
        case IntentIntegrator.REQUEST_CODE: {
            if (resultCode != RESULT_CANCELED) {
                IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
                String data = scanResult.getContents();
                // use this data
            } else {
                // error
            }
            break;
        }
    }
}

编辑1：

将此添加到应用程序的

build.gradle

，作为

依赖项

：

compile 'com.journeyapps:zxing-android-embedded:3.0.2@aar'
compile 'com.google.zxing:core:3.2.0'

---

请尝试以下链接，它对我有用：

---

试试下面的链接，它对我有用：

---

我应该在哪里上课？是否在zxing库中？是的，

import com.google.zxing.integration.android.IntentIntegrator我编译了这些库：
编译'com.journeyapps:zxing安卓嵌入式：3.0。2@aar“编译”com.google.zxing:core:3.2.0“
@ValCool，工作室称无法解析symbol
集成
（在
导入com.google.zxing.integration.android.IntentIntegrator
）我应该从哪里取
管理员
课程？是否在zxing库中？是的，
import com.google.zxing.integration.android.IntentIntegrator我编译了这些库：
编译'com.journeyapps:zxing安卓嵌入式：3.0。2@aar“编译”com.google.zxing:core:3.2.0“
@ValCool，工作室称无法解析symbol
集成
（在
导入com.google.zxing.integration.android.IntentIntegrator
）