Read qr code from image java

// Imports
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;

import com.google.zxing.BinaryBitmap;
import com.google.zxing.ChecksumException;
import com.google.zxing.FormatException;
import com.google.zxing.LuminanceSource;
import com.google.zxing.NotFoundException;
import com.google.zxing.RGBLuminanceSource;
import com.google.zxing.Reader;
import com.google.zxing.Result;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.qrcode.QRCodeReader;

// Interesting method
public static String decodeQRImage(String path) {
    Bitmap bMap = BitmapFactory.decodeFile(path);
    String decoded = null;

    int[] intArray = new int[bMap.getWidth() * bMap.getHeight()];
    bMap.getPixels(intArray, 0, bMap.getWidth(), 0, 0, bMap.getWidth(),
            bMap.getHeight());
    LuminanceSource source = new RGBLuminanceSource(bMap.getWidth(),
            bMap.getHeight(), intArray);
    BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

    Reader reader = new QRCodeReader();
    try {
        Result result = reader.decode(bitmap);
        decoded = result.getText();
    } catch (NotFoundException e) {
        e.printStackTrace();
    } catch (ChecksumException e) {
        e.printStackTrace();
    } catch (FormatException e) {
        e.printStackTrace();
    }
    return decoded;
}

Source: stackoverflow.com

Similar codes

0 vote193 views1 answer
How to get individual words from a string in java
Java
-1 vote240 views1 answer
What is java steam
Java
11 votes204 views6 answers
How to print in java
Java
0 vote196 views1 answer
How to set up basic java workspace
Java
0 vote202 views1 answer
Android java change text value
Java
-1 vote182 views1 answer
Get my jre path
Java
0 vote196 views1 answer
Counting nodes in binary search tree
Java
6 votes195 views2 answers
Android create snackbar
Java
0 vote194 views1 answer
Add pd4j to application
Java
0 vote220 views1 answer
How to send message with image to slack channel using java
Java