Alternative to zxing QR reader library for Java/Android? [closed]

Question

Is there any other library other than Zxing that can be used to create a QR code reader EVEN IF IT'S NOT FREE.

of-course a free one will be great. but I'm also willing to pay to get a library that's easy in customization and to save time.

thank you.

Answer 1

I've found the answer for my question here http://sourceforge.net/news/?group_id=189236

it's much faster than zxing and much easier to implement.

Thank you.

For iOS:

for iOS (zbar.sourceforge.net/iphone) and the documentation (zbar.sourceforge.net/iphone/sdkdoc/install.html)

Answer 2

there are no need to install zxing for implementing qr reader, Just create a class IntentIntegrator.java and IntentResult.java file and call from your activity.

Here is the source code for this....

Checkout full source code here

import java.util.Arrays; import java.util.Collection; import java.util.Collections; import java.util.List;  import android.app.Activity; import android.app.AlertDialog; import android.content.ActivityNotFoundException; import android.content.DialogInterface; import android.content.Intent; import android.content.pm.PackageManager; import android.content.pm.ResolveInfo; import android.net.Uri; import android.util.Log;   public final class IntentIntegrator {    public static final int REQUEST_CODE = 0x0000c0de; // Only use bottom 16 bits   private static final String TAG = IntentIntegrator.class.getSimpleName();    public static final String DEFAULT_TITLE = "Install Barcode Scanner?";   public static final String DEFAULT_MESSAGE =       "This application requires Barcode Scanner. Would you like to install it?";   public static final String DEFAULT_YES = "Yes";   public static final String DEFAULT_NO = "No";    private static final String BS_PACKAGE = "com.google.zxing.client.android";    // supported barcode formats   public static final Collection<String> PRODUCT_CODE_TYPES = list("UPC_A", "UPC_E", "EAN_8", "EAN_13", "RSS_14");   public static final Collection<String> ONE_D_CODE_TYPES =       list("UPC_A", "UPC_E", "EAN_8", "EAN_13", "CODE_39", "CODE_93", "CODE_128",            "ITF", "RSS_14", "RSS_EXPANDED");   public static final Collection<String> QR_CODE_TYPES = Collections.singleton("QR_CODE");   public static final Collection<String> DATA_MATRIX_TYPES = Collections.singleton("DATA_MATRIX");    public static final Collection<String> ALL_CODE_TYPES = null;    public static final Collection<String> TARGET_BARCODE_SCANNER_ONLY = Collections.singleton(BS_PACKAGE);   public static final Collection<String> TARGET_ALL_KNOWN = list(           BS_PACKAGE, // Barcode Scanner           "com.srowen.bs.android", // Barcode Scanner+           "com.srowen.bs.android.simple" // Barcode Scanner+ Simple           // TODO add more -- what else supports this intent?       );    private final Activity activity;   private String title;   private String message;   private String buttonYes;   private String buttonNo;   private Collection<String> targetApplications;    public IntentIntegrator(Activity activity) {     this.activity = activity;     title = DEFAULT_TITLE;     message = DEFAULT_MESSAGE;     buttonYes = DEFAULT_YES;     buttonNo = DEFAULT_NO;     targetApplications = TARGET_ALL_KNOWN;   }    public String getTitle() {     return title;   }    public void setTitle(String title) {     this.title = title;   }    public void setTitleByID(int titleID) {     title = activity.getString(titleID);   }    public String getMessage() {     return message;   }    public void setMessage(String message) {     this.message = message;   }    public void setMessageByID(int messageID) {     message = activity.getString(messageID);   }    public String getButtonYes() {     return buttonYes;   }    public void setButtonYes(String buttonYes) {     this.buttonYes = buttonYes;   }    public void setButtonYesByID(int buttonYesID) {     buttonYes = activity.getString(buttonYesID);   }    public String getButtonNo() {     return buttonNo;   }    public void setButtonNo(String buttonNo) {     this.buttonNo = buttonNo;   }    public void setButtonNoByID(int buttonNoID) {     buttonNo = activity.getString(buttonNoID);   }    public Collection<String> getTargetApplications() {     return targetApplications;   }    public void setTargetApplications(Collection<String> targetApplications) {     this.targetApplications = targetApplications;   }    public void setSingleTargetApplication(String targetApplication) {     this.targetApplications = Collections.singleton(targetApplication);   }    /**    * Initiates a scan for all known barcode types.    */   public AlertDialog initiateScan() {     return initiateScan(ALL_CODE_TYPES);   }    /**    * Initiates a scan only for a certain set of barcode types, given as strings corresponding    * to their names in ZXing's {@code BarcodeFormat} class like "UPC_A". You can supply constants    * like {@link #PRODUCT_CODE_TYPES} for example.    */   public AlertDialog initiateScan(Collection<String> desiredBarcodeFormats) {     Intent intentScan = new Intent(BS_PACKAGE + ".SCAN");     intentScan.addCategory(Intent.CATEGORY_DEFAULT);      // check which types of codes to scan for     if (desiredBarcodeFormats != null) {       // set the desired barcode types       StringBuilder joinedByComma = new StringBuilder();       for (String format : desiredBarcodeFormats) {         if (joinedByComma.length() > 0) {           joinedByComma.append(',');         }         joinedByComma.append(format);       }       intentScan.putExtra("SCAN_FORMATS", joinedByComma.toString());     }      String targetAppPackage = findTargetAppPackage(intentScan);     if (targetAppPackage == null) {       return showDownloadDialog();     }     intentScan.setPackage(targetAppPackage);     intentScan.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);     intentScan.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);     activity.startActivityForResult(intentScan, REQUEST_CODE);     return null;   }    private String findTargetAppPackage(Intent intent) {     PackageManager pm = activity.getPackageManager();     List<ResolveInfo> availableApps = pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);     if (availableApps != null) {       for (ResolveInfo availableApp : availableApps) {         String packageName = availableApp.activityInfo.packageName;         if (targetApplications.contains(packageName)) {           return packageName;         }       }     }     return null;   }    private AlertDialog showDownloadDialog() {     AlertDialog.Builder downloadDialog = new AlertDialog.Builder(activity);     downloadDialog.setTitle(title);     downloadDialog.setMessage(message);     downloadDialog.setPositiveButton(buttonYes, new DialogInterface.OnClickListener() {       @Override       public void onClick(DialogInterface dialogInterface, int i) {         Uri uri = Uri.parse("market://details?id=" + BS_PACKAGE);         Intent intent = new Intent(Intent.ACTION_VIEW, uri);         try {           activity.startActivity(intent);         } catch (ActivityNotFoundException anfe) {           // Hmm, market is not installed           Log.w(TAG, "Android Market is not installed; cannot install Barcode Scanner");         }       }     });     downloadDialog.setNegativeButton(buttonNo, new DialogInterface.OnClickListener() {       @Override       public void onClick(DialogInterface dialogInterface, int i) {}     });     return downloadDialog.show();   }     /**    * <p>Call this from your {@link Activity}'s    * {@link Activity#onActivityResult(int, int, Intent)} method.</p>    *    * @return null if the event handled here was not related to this class, or    *  else an {@link IntentResult} containing the result of the scan. If the user cancelled scanning,    *  the fields will be null.    */   public static IntentResult parseActivityResult(int requestCode, int resultCode, Intent intent) {     if (requestCode == REQUEST_CODE) {       if (resultCode == Activity.RESULT_OK) {         String contents = intent.getStringExtra("SCAN_RESULT");         String formatName = intent.getStringExtra("SCAN_RESULT_FORMAT");         byte[] rawBytes = intent.getByteArrayExtra("SCAN_RESULT_BYTES");         int intentOrientation = intent.getIntExtra("SCAN_RESULT_ORIENTATION", Integer.MIN_VALUE);         Integer orientation = intentOrientation == Integer.MIN_VALUE ? null : intentOrientation;         String errorCorrectionLevel = intent.getStringExtra("SCAN_RESULT_ERROR_CORRECTION_LEVEL");         return new IntentResult(contents,                                 formatName,                                 rawBytes,                                 orientation,                                 errorCorrectionLevel);       }       return new IntentResult();     }     return null;   }     /**    * Shares the given text by encoding it as a barcode, such that another user can    * scan the text off the screen of the device.    *    * @param text the text string to encode as a barcode    */   public void shareText(CharSequence text) {     Intent intent = new Intent();     intent.addCategory(Intent.CATEGORY_DEFAULT);     intent.setAction(BS_PACKAGE + ".ENCODE");     intent.putExtra("ENCODE_TYPE", "TEXT_TYPE");     intent.putExtra("ENCODE_DATA", text);     String targetAppPackage = findTargetAppPackage(intent);     if (targetAppPackage == null) {       showDownloadDialog();     } else {       intent.setPackage(targetAppPackage);       intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);       intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);       activity.startActivity(intent);     }   }    private static Collection<String> list(String... values) {     return Collections.unmodifiableCollection(Arrays.asList(values));   }  } 

And IntentResult.java for cantaining the info of the selected bar code or qr code.

/** * */

public final class IntentResult {        private final String contents;       private final String formatName;       private final byte[] rawBytes;       private final Integer orientation;       private final String errorCorrectionLevel;        IntentResult() {         this(null, null, null, null, null);       }        IntentResult(String contents,                    String formatName,                    byte[] rawBytes,                    Integer orientation,                    String errorCorrectionLevel) {         this.contents = contents;         this.formatName = formatName;         this.rawBytes = rawBytes;         this.orientation = orientation;         this.errorCorrectionLevel = errorCorrectionLevel;       }        /**        * @return raw content of barcode        */       public String getContents() {         return contents;       }        /**        * @return name of format, like "QR_CODE", "UPC_A". See {@code BarcodeFormat} for more format names.        */       public String getFormatName() {         return formatName;       }        /**        * @return raw bytes of the barcode content, if applicable, or null otherwise        */       public byte[] getRawBytes() {         return rawBytes;       }        /**        * @return rotation of the image, in degrees, which resulted in a successful scan. May be null.        */       public Integer getOrientation() {         return orientation;       }        /**        * @return name of the error correction level used in the barcode, if applicable        */       public String getErrorCorrectionLevel() {         return errorCorrectionLevel;       }        @Override       public String toString() {         StringBuilder dialogText = new StringBuilder(100);         dialogText.append("Format: ").append(formatName).append('\n');         dialogText.append("Contents: ").append(contents).append('\n');         int rawBytesLength = rawBytes == null ? 0 : rawBytes.length;         dialogText.append("Raw bytes: (").append(rawBytesLength).append(" bytes)\n");         dialogText.append("Orientation: ").append(orientation).append('\n');         dialogText.append("EC level: ").append(errorCorrectionLevel).append('\n');         return dialogText.toString();       }      } 

now how to call these classes from your Activity

  btnScanBarCode.setOnClickListener(new View.OnClickListener() {                      @Override                     public void onClick(View v) {                         // TODO Auto-generated method stub                     IntentIntegrator integrator = new IntentIntegrator(BarCodeReaderActivity.this);                 integrator.initiateScan();                          }                 }); 

And in onActivityResult

 @Override     protected void onActivityResult(int requestCode, int resultCode, Intent data) {         // TODO Auto-generated method stub          IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);           if (scanResult != null) {              // handle scan result              contantsString =  scanResult.getContents()==null?"0":scanResult.getContents();              if (contantsString.equalsIgnoreCase("0")) {                  Toast.makeText(this, "Problem to get the  contant Number", Toast.LENGTH_LONG).show();               }else {                  Toast.makeText(this, contantsString, Toast.LENGTH_LONG).show();              }            }           else{               Toast.makeText(this, "Problem to secan the barcode.", Toast.LENGTH_LONG).show();           }     }