Is there a component to read PDF file for DPF?

[Chris]

is there a component that i can use to read PDF file for iOS?

please advise

thanks
chris

[Diego]

Check the PDF demos...

[Gordon]

Funny you should ask.. I just finished my PDF portion.. Heres what I did..
Since there really isnt a report writer for IOS.. I send the Invoice number to my Server, it generates my PDF.. then I download it and display.. Then I can print on an airprint server.. Works perfect. Takes about 3 seconds..

I did have trouble taking snapshops of views, and making PDF's.. I couldnt get my report to look right, so I let the server do the work in this case..
Not sure what Id do if I didnt have internet..

[Chris]

Hi Gordon
I am also thinking about this way too. However, i don't like to have a windows as the client to generate the PDF. I am thinking of using linux but which part of linux can i use to work with Delphi or Lazarus?
Currently i am using fast report to generate reports on windows xp but i thinking of shifting it to linux.
What would be your advise

thanks
chris

[Diego]

For my App I also considered to use an external server for PDF printing, because sometimes I needed more than one page and the current DPF implementation of PDF print didn´t allow this. For me was a MUST not requiring an internet connection, so I created a new PDF Export function:

In the UIVIew I want to print, I put a UITableView with fixed RowHeight. In my particular case, I wanted 4 rows/PDF page (I put charts in there).

So what I do, is to capture this view, then I scroll the TableView to the next 4 rows and so...

function TfResultados.CreatePDFfromViewCustom2( aView: UIView; FileName: string; Tabla: TDPFUiTableView): Boolean;
var
  pdfData   : NSMutableData;
  pdfContext: CGContextRef;
  i,paginas:  Integer;
  AuxBounds:  NSRect;
begin
  AuxBounds:=aView.bounds;
  result := false;

  uiFondoResultados.Align:=TAlignLayout.alNone;
  //Fixed iPad sizes
  uiFondoResultados.Width:=768;
  uiFondoResultados.Height:=955+64;
  FondoTitulo.Width:=uiFondoResultados.Width;

  //if not an iPad, I change the size of the uiview before printing
  if (NOT fMenu.vEsiPAD) then AjustarVistaParaImpresion(true);

  FondoTitulo.Visible:=true;

  if frac(Tabla.Sections.Count/4)>0 then
    begin
      paginas:=trunc(Tabla.Sections.Count/4)+1;
    end else paginas:=round(Tabla.Sections.Count/4);
  // Creates a mutable data object for updating with binary data, like a byte array
  pdfData := TNSMutableData.Create;
  // Points the pdf converter to the mutable data object and to the UIView to be converted

  UIGraphicsBeginPDFContextToData( ( pdfData as ILocalObject ).GetObjectID, uiFondoResultados.GetUIView.bounds, nil );

  for i := 0 to paginas-1 do
    begin
      Tabla.ScrollToRow(i*4,0,spTop,false);
      UIGraphicsBeginPDFPage( );
      pdfContext := UIGraphicsGetCurrentContext( );
      // draws rect to the view and thus this is captured by UIGraphicsBeginPDFContextToData
      if i=0 then
        begin
          uiFondoResultados.GetUIView.layer.renderInContext(pdfContext);
          FondoTitulo.Visible:=false;
        end
        else aView.layer.renderInContext( pdfContext );
    end;

  // remove PDF rendering context
  UIGraphicsEndPDFContext( );
  RemoveFile( FileName );
  if pdfData.length > 0 then
    result := pdfData.writeToFile( NSStr( FileName ), false );
  pdfData.release;

  uiFondoResultados.Align:=TAlignLayout.alClient;
  if (NOT fMenu.vEsiPAD) then AjustarVistaParaImpresion(False);

//I restore the original Bounds of the UIVIew  
aView.setBounds(AuxBounds);

  Tabla.ScrollToRow(0,0,spTop,false);

end;