Android Qr code generation

Question

android qr code生成数字

com.google.zxing.Writer writer = new UPCAWriter();
String finaldata = Uri.encode(data, characterEncoding);
BitMatrix bm = writer.encode(finaldata, mBarcodeFormat, bitmapWidth,bitmapHeight);
ImageBitmap = Bitmap.createBitmap(bitmapWidth, bitmapHeight,Config.ARGB_8888);
for (int i = 0; i < bitmapWidth; i++) {
for (int j = 0; j < bitmapHeight; j++) {
    ImageBitmap.setPixel(i, j, bm.get(i, j) ? Color.BLACK: Color.WHITE);
}

}

Answer 1

尝试此

public void generateQRCode_general(String data, ImageView img)throws WriterException {
    com.google.zxing.Writer writer = new QRCodeWriter();
    String finaldata = Uri.encode(data, characterEncoding);
    BitMatrix bm = writer.encode(finaldata, BarcodeFormat.QR_CODE,bitmapWidth, bitmapHeight);
    ImageBitmap = Bitmap.createBitmap(bitmapWidth, bitmapHeight,Config.ARGB_8888);
    for (int i = 0; i < bitmapWidth; i++) {
        for (int j = 0; j < bitmapHeight; j++) {
            ImageBitmap.setPixel(i, j, bm.get(i, j) ? Color.BLACK: Color.WHITE);
        }
    }
    if (ImageBitmap != null) {
        img.setImageBitmap(ImageBitmap);
    } else {
        Toast.makeText(activity,"Uable to setImageBitmap n ImageBitmap is NULL",Toast.LENGTH_LONG).show();
    }
}

用于数字的使用此

com.google.zxing.Writer writer = new UPCAWriter();
String finaldata = Uri.encode(data, characterEncoding);
    BitMatrix bm = writer.encode(finaldata, mBarcodeFormat, bitmapWidth,bitmapHeight);
    ImageBitmap = Bitmap.createBitmap(bitmapWidth, bitmapHeight,Config.ARGB_8888);
    for (int i = 0; i < bitmapWidth; i++) {
        for (int j = 0; j < bitmapHeight; j++) {
            ImageBitmap.setPixel(i, j, bm.get(i, j) ? Color.BLACK: Color.WHITE);
        }
    }

UPCA的限制为12个数字