public IActionResult Get()
{
var req = this.Request;
switch (req.Host.Host)
{
case "localhost":
case "127.0.0.1":
return(Content("地址为127.0.0.1或localhost时，二维码不可用。"));
}
var obj = new
{
Name = name,
Url = $"{req.Scheme}://{req.Host}",
Password = password
};
ZXing.Writer formatWriter = new ZXing.MultiFormatWriter();
ZXing.IBarcodeWriterSvg barcodeWriter = new ZXing.BarcodeWriterSvg();
ZXing.BarcodeFormat barcodeFormat = ZXing.BarcodeFormat.QR_CODE;
Dictionary <ZXing.EncodeHintType, object> hints = new Dictionary <ZXing.EncodeHintType, object>()
{
[ZXing.EncodeHintType.CHARACTER_SET] = "UTF-8"
};
ZXing.Common.BitMatrix bitMatrix = formatWriter.encode(JsonConvert.SerializeObject(obj), barcodeFormat, 400, 400, hints);
var svgImage = barcodeWriter.Write(bitMatrix);
var svgContent = svgImage.Content;
return(this.Content(svgContent, "image/svg+xml", Encoding.UTF8));
}
private void RenderCard()
{
var bounds = ApplicationView.GetForCurrentView().VisibleBounds;
if (App.IsMobile)
{
bcImage.Width = bounds.Width;
bcImage.Height = bounds.Width * .5625;
bcGrid.Height = bcImage.Height + 20;
bcGrid.Width = bounds.Width;
bcGrid.Margin = new Thickness(0, 70, 0, 0);
bcNumber.Width = bounds.Width;
}
else
{
bcImage.Width = bounds.Width * .40;
bcImage.Height = (bounds.Width * .40) * .5625;
bcGrid.Height = bcImage.Height + 20;
bcGrid.Width = (bounds.Width * .40);
bcGrid.Margin = new Thickness(0, 70, 0, 0);
bcNumber.Width = bounds.Width * .40;
}
bcNumber.Text = theCard.Number;
bcNumber.TextAlignment = TextAlignment.Center;
ZXing.MultiFormatWriter mfw = new ZXing.MultiFormatWriter();
try
{
ZXing.Common.BitMatrix bm = mfw.encode(theCard.Number, theCard.Format, (int)bcImage.Width, (int)bcImage.Height);
ZXing.Mobile.WriteableBitmapRenderer w = new WriteableBitmapRenderer();
ZXing.Common.EncodingOptions eo = new ZXing.Common.EncodingOptions();
eo.Height = (int)bcImage.Height;
eo.Width = (int)bcImage.Width;
WriteableBitmap wbm = w.Render(bm, theCard.Format, theCard.Number, eo);
bcImage.Source = wbm;
}
catch(Exception e)
{
CardEncodeErr.Text = e.Message;
CardEncodeErr.Visibility = Visibility.Visible;
}
}
private void RenderCard()
{
var bounds = ApplicationView.GetForCurrentView().VisibleBounds;
if (App.IsMobile)
{
bcImage.Width = bounds.Width;
if (theCard.Format == ZXing.BarcodeFormat.PDF_417)
{
bcImage.Height = bounds.Width * .35;
bcNumber.Margin = new Thickness(0, 0, 0, 3);
}
else
{
bcImage.Height = bounds.Width * .4;
bcNumber.Margin = new Thickness(0, 0, 0, 0);
}
bcGrid.VerticalAlignment = VerticalAlignment.Top;
bcGrid.Height = bcImage.Height + 20;
bcGrid.Width = bounds.Width;
bcGrid.Margin = new Thickness(0, 70, 0, 0);
bcNumber.Width = bounds.Width;
}
else
{
if (theCard.Format == ZXing.BarcodeFormat.PDF_417)
{
bcImage.Height = (bounds.Width * .40) * .3;
}
else
{
bcImage.Height = (bounds.Width * .40) * .5625;
}
bcImage.Width = bounds.Width * .40;
bcImage.HorizontalAlignment = HorizontalAlignment.Center;
bcImage.VerticalAlignment = VerticalAlignment.Center;
bcGrid.Height = bcImage.Height + 20;
bcGrid.Width = (bounds.Width * .40);
bcGrid.Margin = new Thickness(0, 70, 0, 0);
bcNumber.Width = bounds.Width * .40;
if (bounds.Width > 800)
bcNumber.FontSize = 20;
else if (bounds.Width > 600 && Width <= 800)
bcNumber.FontSize = 16;
else if (bounds.Width <= 600)
bcNumber.FontSize = 11;
}
bcNumber.Text = theCard.Number;
bcNumber.TextAlignment = TextAlignment.Center;
ZXing.MultiFormatWriter mfw = new ZXing.MultiFormatWriter();
try
{
var scaleFactor = DisplayInformation.GetForCurrentView().RawPixelsPerViewPixel;
ZXing.Common.BitMatrix bm;
if (App.IsMobile)
bm = mfw.encode(theCard.Number, theCard.Format, (int)(bcImage.Width * (scaleFactor - 1)), (int)(bcImage.Height * (scaleFactor - 1)));
else
bm = mfw.encode(theCard.Number, theCard.Format, (int)bcImage.Width, (int)bcImage.Height);
ZXing.Mobile.WriteableBitmapRenderer w = new WriteableBitmapRenderer();
ZXing.Common.EncodingOptions eo = new ZXing.Common.EncodingOptions();
eo.Height = (int)bcImage.Height;
eo.Width = (int)bcImage.Width;
WriteableBitmap wbm = w.Render(bm, theCard.Format, theCard.Number, eo);
bcImage.Source = wbm;
}
catch(Exception e)
{
CardEncodeErr.Text = e.Message;
CardEncodeErr.Visibility = Visibility.Visible;
}
}
