Я рисую PDF со следующим кодом:
CGContextRef pdfContext;
CFStringRef path;
CFURLRef url;
CFMutableDictionaryRef myDictionary = NULL;
// Create a CFString from the filename we provide to this method when we call it
path = CFStringCreateWithCString (NULL, filename,
kCFStringEncodingUTF8);
// Create a CFURL using the CFString we just defined
url = CFURLCreateWithFileSystemPath (NULL, path,
kCFURLPOSIXPathStyle, 0);
CFRelease (path);
// This dictionary contains extra options mostly for 'signing' the PDF
myDictionary = CFDictionaryCreateMutable(NULL, 0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFDictionarySetValue(myDictionary, kCGPDFContextTitle, CFSTR("My PDF File"));
CFDictionarySetValue(myDictionary, kCGPDFContextCreator, CFSTR("My Name"));
// Create our PDF Context with the CFURL, the CGRect we provide, and the above defined dictionary
pdfContext = CGPDFContextCreateWithURL (url, &pageRect, myDictionary);
// Cleanup our mess
CFRelease(myDictionary);
CFRelease(url);
//CGContextSetLineCap(pdfContext, kCGLineCapButt);
// Done creating our PDF Context, now it's time to draw to it
CGContextBeginPage (pdfContext, &pageRect);
Но когда вызов идет, чтобы начать метод страницы, он просто рисует одну страницу. Как я могу объявить правильный контекст, чтобы он мог рисовать несколько страниц?
Вот что у меня есть:
-(void)createPDFFileWithRect: (CGRect) pageRect andFileName:(const char*)filename
{
// This code block sets up our PDF Context so that we can draw to it
CGPDFContextCreateWithURL(url,
((0, 0), (1000, 1000)), nil);
CGContextRef pdfContext;
CFStringRef path;
CFURLRef url;
CFMutableDictionaryRef myDictionary = NULL;
// Create a CFString from the filename we provide to this method when we call it
path = CFStringCreateWithCString (NULL, filename,
kCFStringEncodingUTF8);
// Create a CFURL using the CFString we just defined
url = CFURLCreateWithFileSystemPath (NULL, path,
kCFURLPOSIXPathStyle, 0);
CFRelease (path);
// This dictionary contains extra options mostly for 'signing' the PDF
myDictionary = CFDictionaryCreateMutable(NULL, 0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFDictionarySetValue(myDictionary, kCGPDFContextTitle, CFSTR("My PDF File"));
CFDictionarySetValue(myDictionary, kCGPDFContextCreator, CFSTR("My Name"));
// Create our PDF Context with the CFURL, the CGRect we provide, and the above defined dictionary
pdfContext = CGPDFContextCreateWithURL (url, &pageRect, myDictionary);
// Cleanup our mess
CFRelease(myDictionary);
CFRelease(url);
//CGContextSetLineCap(pdfContext, kCGLineCapButt);
// Done creating our PDF Context, now it's time to draw to it
// Starts our first page
//for(int i =0;i<2;i++)
//{
CGContextBeginPage (pdfContext, &pageRect);
//CGContextRef pdfContext1;
//CGContextBeginPage (pdfContext, &pageRect);
//}
// Draws a black rectangle around the page inset by 50 on all sides
CGContextStrokeRect(pdfContext, CGRectMake(50, 50, 500,700));
CGContextShowTextAtPoint (pdfContext, 60, 699, text, strlen(text));
// End text
// We are done drawing to this page, let's end it
// We could add as many pages as we wanted using CGContextBeginPage/CGContextEndPage
CGContextEndPage (pdfContext);
// cpde to draw a new page
// CGContextBeginPage (pdfContext, &pageRect);
// We are done with our context now, so we release it
CGContextRelease (pdfContext);
}