pdf - Printing from an iOS device (AirPrint) -


i think must coming @ wrong angle. first foray pdf quartz. have ability print text entered app, may need drop in release.

i have read can hands on both apple , web, can't seem stuff working. can document printer prints blank. process using is:

  1. get text nsstring.
  2. convert string pdf in nsdata object.
  3. print it.

i have 2 methods in text project. test there no bells , whistles , there memory leaks, i'm trying work.

thanks in advance help.

the first creates pdf document nsdata. 

- (nsdata *)createpdfasdatawithattributedstring:(nsattributedstring *)text {     // save text in case…     _pdftext = [text copy];      // allocate pdf context.     cgcontextref pdfcontext;      // create pdf attribute dictionary.     cfmutabledictionaryref pdfattributedictionary = null;     pdfattributedictionary = cfdictionarycreatemutable(null, 0, &kcftypedictionarykeycallbacks, &kcftypedictionaryvaluecallbacks);     cfdictionarysetvalue(pdfattributedictionary, kcgpdfcontexttitle, cfstr("my note"));     cfdictionarysetvalue(pdfattributedictionary, kcgpdfcontextcreator, cfstr("me"));      // create data referece mutable data type.     nsdata *pdfdata = [[nsmutabledata alloc] init];      // user data consumer using data reference.     cgdataconsumerref pdfdataconsumer = cgdataconsumercreatewithcfdata((cfmutabledataref)pdfdata);      // pdfcontext can created.     pdfcontext = cgpdfcontextcreate(pdfdataconsumer, null, pdfattributedictionary);      // start first page.     cgcontextbeginpage(pdfcontext, null);      // set font     cgcontextselectfont(pdfcontext, "helvetica", 16.0f, kcgencodingmacroman);     cgcontextsettextdrawingmode(pdfcontext, kcgtextfill);     cgcontextsetrgbfillcolor(pdfcontext, 0, 0, 0, 1);      // print text     nsstring *regtext = [text string];     const char *pdftext = [regtext cstringusingencoding:nsutf8stringencoding];     cgcontextshowtext(pdfcontext, pdftext, strlen(pdftext));      // end page.     cgcontextendpage(pdfcontext);      // save current state     cgcontextsavegstate(pdfcontext);          // release pdf context     cgcontextrelease(pdfcontext);      return [pdfdata autorelease]; }

the second print.

- (ibaction)printpdftouchupinside:(id)sender {     pdfcreator *pdfcreator = [[pdfcreator alloc] init];     nsdata *pdfdata = [pdfcreator createpdfasdatawithattributedstring:_printabletext];     uiprintinteractioncontroller *printcontroller = [uiprintinteractioncontroller sharedprintcontroller];     uiprintinfo *printinfo = [uiprintinfo printinfo];     [printinfo setprinterid:@"canon mp620 series"];     [printinfo setorientation:uiprintinfoorientationportrait];     [printinfo setoutputtype:uiprintinfooutputgeneral];     [printinfo setjobname:@"test print"];      [printcontroller setprintinfo:printinfo];     [printcontroller setprintingitem:pdfdata];      void (^completionhandler)(uiprintinteractioncontroller *, bool, nserror *) = ^(uiprintinteractioncontroller *printcontroller, bool completed, nserror *error) {         if (!completed && error) {             nslog(@"failed!  due error in domain %@ error code %u", error.domain, error.code);         }     };      [printcontroller presentfromrect:[sender bounds] inview:sender animated:yes completionhandler:completionhandler]; }


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