public override void OnWrite(PageRange[] pages, Android.OS.ParcelFileDescriptor destination, Android.OS.CancellationSignal cancellationSignal, WriteResultCallback callback)
{
try
{
using (InputStream input = new FileInputStream(_filePath))
{
using (OutputStream output = new FileOutputStream(destination.FileDescriptor))
{
var buf = new byte[1024];
int bytesRead;
while ((bytesRead = input.Read(buf)) > 0)
{
output.Write(buf, 0, bytesRead);
}
}
}
callback.OnWriteFinished(new[] { PageRange.AllPages });
}
catch (FileNotFoundException fileNotFoundException)
{
System.Diagnostics.Debug.WriteLine(fileNotFoundException);
}
catch (Exception exception)
{
System.Diagnostics.Debug.WriteLine(exception);
}
}
public override void OnLayout(PrintAttributes oldAttributes, PrintAttributes newAttributes, Android.OS.CancellationSignal cancellationSignal, LayoutResultCallback callback, Android.OS.Bundle extras)
{
if (cancellationSignal.IsCanceled)
{
callback.OnLayoutCancelled();
return;
}
callback.OnLayoutFinished(new PrintDocumentInfo.Builder(_fileName)
.SetContentType(PrintContentType.Document)
.Build(), true);
}