How to ZXING Barcode Scanner not full screen only half screen

Question

I want create application Scan Barcode using ZXING Barcode Scanner

Like Blackberry Messenger

This is my code \"MainActivity.java\"

Answer 1

ZXING library allows you to launch an intent(activity) to scan barcodes. If you wants to make changes in that you have to make changes in CaptureActivity of ZXING lib.

Also, now since Google has included scanning feature in its playservices you can use Vision api for scanning in a fragment without integration of any third party library. https://github.com/googlesamples/android-vision/tree/master/visionSamples

Answer 2

Step 1:

Add This Libray in Gradle in Dependancy

implementation 'com.google.zxing:core:3.2.1'
implementation 'com.journeyapps:zxing-android-embedded:3.2.0@aar'

Step 2:

BarcodeActivity.java

    public class BarcodeActivity extends AppCompatActivity {


       private EditText editTextProductId;
       private Button buttonGenerate, buttonScan;
       private ImageView imageViewResult;

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

       private void initView() {
           editTextProductId = findViewById(R.id.editTextProductId);
           imageViewResult = findViewById(R.id.imageViewResult);
           buttonGenerate = findViewById(R.id.buttonGenerate);

           buttonGenerate.setOnClickListener(new View.OnClickListener() {
               @Override
               public void onClick(View view) {
                   buttonGenerate_onClick(view);
               }
           });
           buttonScan = findViewById(R.id.buttonScan);
           buttonScan.setOnClickListener(new View.OnClickListener() {
               @Override
               public void onClick(View view) {
                   buttonScan_onClick(view);
               }
           });
       }

       private void buttonGenerate_onClick(View view) {
           try {
               String productId = editTextProductId.getText().toString();
               Hashtable<EncodeHintType, ErrorCorrectionLevel> hintMap = new Hashtable<EncodeHintType, ErrorCorrectionLevel>();
               hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
               Writer codeWriter;
               codeWriter = new Code128Writer();
               BitMatrix byteMatrix = codeWriter.encode(productId, BarcodeFormat.CODE_128,400, 200, hintMap);
               int width = byteMatrix.getWidth();
               int height = byteMatrix.getHeight();
               Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
               for (int i = 0; i < width; i++) {
                   for (int j = 0; j < height; j++) {
                       bitmap.setPixel(i, j, byteMatrix.get(i, j) ? Color.BLACK : Color.WHITE);
                   }
               }
               imageViewResult.setImageBitmap(bitmap);
           } catch (Exception e) {
               Toast.makeText(getApplicationContext(), e.getMessage(), 
               Toast.LENGTH_LONG).show();
           }
       }

       private void buttonScan_onClick(View view) {
           IntentIntegrator intentIntegrator = new IntentIntegrator(this);
   intentIntegrator.setDesiredBarcodeFormats(IntentIntegrator.ALL_CODE_TYPES);
           intentIntegrator.setCameraId(0);
           intentIntegrator.initiateScan();
       }

       @Override
       protected void onActivityResult(int requestCode, int resultCode, Intent data) {
           IntentResult intentResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
           if (intentResult != null) {
               String productId = intentResult.getContents();
               Toast.makeText(getApplicationContext(), productId, Toast.LENGTH_LONG).show();
           }
       }

    }

Step 3:

activity_barcode.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ffffff"
    android:orientation="vertical"
    tools:ignore="HardcodedText">

<EditText
    android:id="@+id/editTextProductId"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:ems="10"
    android:hint="Product Id"
    android:inputType="textPersonName" />

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

    <Button
        android:id="@+id/buttonGenerate"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="Generate Barcode" />

    <Button
        android:id="@+id/buttonScan"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="Scan Barcode" />
</LinearLayout>

<ImageView
    android:id="@+id/imageViewResult"
    android:layout_width="match_parent"
    android:layout_height="335dp" />


</LinearLayout>

Answer 3

Please Add this code in MainActivity

Add This Libray in Gradle in Dependancy

    compile 'com.journeyapps:zxing-android-embedded:3.3.0@aar'
compile 'me.dm7.barcodescanner:zxing:1.9'

Add jar zbar.jar

public class MainActivity extends AppCompatActivity implements ZXingScannerView.ResultHandler {

ZXingScannerView mScannerView;

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        QCscanner = (Button) findViewById(R.id.QCscanner);



mScannerView = new ZXingScannerView(this);
    QCscanner.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            try {
                /*Intent intent = new Intent("com.google.zxing.client.android.SCAN");
                intent.putExtra("SCAN_MODE", "QR_CODE_MODE");
                startActivityForResult(intent, 0);*/
                mScannerView = new ZXingScannerView(MainActivity.this);   // Programmatically initialize the scanner view<br />
                setContentView(mScannerView);
                mScannerView.setResultHandler(MainActivity.this); // Register ourselves as a handler for scan results.<br />
                mScannerView.startCamera();
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        }
    });

}

 @Override
public void handleResult(Result result) {
    Log.e("", result.getText()); // Prints scan results<br />
    Log.e("", result.getBarcodeFormat().toString());

    Toast.makeText(MainActivity.this, "" + result.getText() + "\n" + result.getBarcodeFormat().toString(), Toast.LENGTH_SHORT).show();

}

}

Answer 4

I have achieved the same effect/UI you are looking for by using ZXing Android Embedded. Very straightforward to implement - and it also includes a torch functionality.

Answer 5

Please use https://github.com/journeyapps/zxing-android-embedded

Just include Scanner view and remove scan paddings by adding: app:zxing_framing_rect_width="200dp" app:zxing_framing_rect_height="200dp" attributes.

<com.journeyapps.barcodescanner.DecoratedBarcodeView
    android:id="@+id/zxing_barcode_scanner"
    android:layout_width="200dp"
    android:layout_height="200dp"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="36dp"
    app:zxing_framing_rect_width="200dp"
    app:zxing_framing_rect_height="200dp"
    app:zxing_preview_scaling_strategy="fitXY"
    app:zxing_use_texture_view="false"
    />