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2014/10/15 ¤U¤È 10:05:05

iphone Programming Glossary: cgpdfpage

MonoTouch CoreGraphics PDF memory issues with CGPDFDocument and CGPDFPage

http://stackoverflow.com/questions/2289174/monotouch-coregraphics-pdf-memory-issues-with-cgpdfdocument-and-cgpdfpage

CoreGraphics PDF memory issues with CGPDFDocument and CGPDFPage I've been working with MonoTouch for 3 weeks now and everything was going great until I had to display PDFs in my app... the PDF. The problem is that the app runs out of memory. I tried to use the Dispose methods on the CGPDFDocument and CGPDFPage objects but then I get this error Stacktrace at wrapper managed to native MonoTouch.CoreGraphics.CGPDFPage.CGPDFPageRelease.. and CGPDFPage objects but then I get this error Stacktrace at wrapper managed to native MonoTouch.CoreGraphics.CGPDFPage.CGPDFPageRelease intptr 0xffffffff at MonoTouch.CoreGraphics.CGPDFPage.Dispose bool 0x00044 at MonoTouch.CoreGraphics.CGPDFPage.Finalize..

Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints?

http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints

with placeholder objects alternitively another design approach is this one Note that images will render faster than a CGPDFPageRef Use NSOperations or GCD Blocks to prepare pages ahead of time. call CGContextSetInterpolationQuality ctx kCGInterpolationHigh.. tiles will be released automatically when memory warnings are issued. Whenever the user start zooming I acquire the CGPDFPage and render it using the appropriate CTM. The code in void drawLayer CALayer layer inContext CGContextRef context is like.. 2 imageSize.width imageSize.height CGContextDrawImage context imageRect baseImage CGImage else @synchronized issue CGPDFPageRef pdfPage CGPDFDocumentGetPage issue.pdfDoc pageIndex 1 pdfToPageTransform CGPDFPageGetDrawingTransform pdfPage kCGPDFMediaBox..

Get PDF hyperlinks on iOS with Quartz

http://stackoverflow.com/questions/4080373/get-pdf-hyperlinks-on-ios-with-quartz

so hopefully it'll help someone. It assumes the PDF document actually contains annotations. for int i 0 i pageCount i CGPDFPageRef page CGPDFDocumentGetPage doc i 1 CGPDFDictionaryRef pageDictionary CGPDFPageGetDictionary page CGPDFArrayRef outputArray.. for int i 0 i pageCount i CGPDFPageRef page CGPDFDocumentGetPage doc i 1 CGPDFDictionaryRef pageDictionary CGPDFPageGetDictionary page CGPDFArrayRef outputArray if CGPDFDictionaryGetArray pageDictionary Annots outputArray return int arrayCount.. 3 CGPDFInteger pageRotate 0 CGPDFDictionaryGetInteger pageDictionary Rotate pageRotate CGRect pageRect CGRectIntegral CGPDFPageGetBoxRect page kCGPDFMediaBox if pageRotate 90 pageRotate 270 CGFloat temp pageRect.size.width pageRect.size.width pageRect.size.height..

Rendering a CGPDFPage into a UIImage

http://stackoverflow.com/questions/4639781/rendering-a-cgpdfpage-into-a-uiimage

a CGPDFPage into a UIImage I'm trying to render a CGPDFPage selected from a CGPDFDocument into a UIImage to display on a view. I have.. a CGPDFPage into a UIImage I'm trying to render a CGPDFPage selected from a CGPDFDocument into a UIImage to display on a view. I have the following code in MonoTouch which gets me.. CGContext context UIGraphics.GetCurrentContext context.SaveState CGPDFDocument pdfDoc CGPDFDocument.FromFile test.pdf CGPDFPage pdfPage pdfDoc.GetPage 1 context.DrawPDFPage pdfPage UIImage testImage UIGraphics.GetImageFromCurrentImageContext pdfDoc.Dispose..