How to Generate QR code from Text

In this article i will share you the code snippet to generate the QR code from any Text. Before this i want to brief you about QR code.

QR Code: 

QR code is the trademark for a type of matrix barcode first designed in 1994 for the automotive industry in Japan. A barcode is a machine-readable optical label that contains information about the item to which it is attached.


So lets Start with the Coding Part :

 Bitmap TextToImageEncode(String Value) throws WriterException {  
     BitMatrix bitMatrix;  
     try {  
       bitMatrix = new MultiFormatWriter().encode(  
           Value,  
           BarcodeFormat.DATA_MATRIX.QR_CODE,  
           QRcodeWidth, QRcodeWidth, null  
       );  
     } catch (IllegalArgumentException Illegalargumentexception) {  
       return null;  
     }  
     int bitMatrixWidth = bitMatrix.getWidth();  
     int bitMatrixHeight = bitMatrix.getHeight();  
     int[] pixels = new int[bitMatrixWidth * bitMatrixHeight];  
     for (int y = 0; y < bitMatrixHeight; y++) {  
       int offset = y * bitMatrixWidth;  
       for (int x = 0; x < bitMatrixWidth; x++) {  
         pixels[offset + x] = bitMatrix.get(x, y) ?  
             getResources().getColor(R.color.blackcolor):getResources().getColor(R.color.white);  
       }  
     }  
     Bitmap bitmap = Bitmap.createBitmap(bitMatrixWidth, bitMatrixHeight, Bitmap.Config.ARGB_4444);  
     bitmap.setPixels(pixels, 0, 500, 0, 0, bitMatrixWidth, bitMatrixHeight);  
     return bitmap;  
   }  

For use This Method Simply Call to generate QR code :

    Bitmap bitmap ;
    String qrcode;
    ImageView imageView;

 qrcode="orderID=11xxx11&Name=UserName";

 try {
            bitmap = TextToImageEncode(qrcode);
            imageView.setImageBitmap(bitmap);

        } catch (WriterException e) {
            e.printStackTrace();
        }


That's All you need to generate QR code.