¡@
2014/10/15 ¤U¤È 10:12:48
iphone Programming Glossary: pngdataHow to implement Deep copy for the Class in UIKit? http://stackoverflow.com/questions/10188387/how-to-implement-deep-copy-for-the-class-in-uikit UIImage NSCoder.m #import UIImage NSCoder.h @implementation UIImage NSCoding id initWithCoder NSCoder decoder NSData pngData decoder decodeObjectForKey @ PNGRepresentation self autorelease self UIImage alloc initWithData pngData return self void.. decoder NSData pngData decoder decodeObjectForKey @ PNGRepresentation self autorelease self UIImage alloc initWithData pngData return self void encodeWithCoder NSCoder encoder encoder encodeObject UIImagePNGRepresentation self forKey @ PNGRepresentation..
iPhone - Why does the documentation say UIImageView is NSCoding compliant? http://stackoverflow.com/questions/1072700/iphone-why-does-the-documentation-say-uiimageview-is-nscoding-compliant void encodeWithCoder NSCoder encoder @end @implementation UIImage NSCoding id initWithCoder NSCoder decoder NSData pngData decoder decodeObjectForKey @ PNGRepresentation self autorelease self UIImage alloc initWithData pngData return self void.. decoder NSData pngData decoder decodeObjectForKey @ PNGRepresentation self autorelease self UIImage alloc initWithData pngData return self void encodeWithCoder NSCoder encoder encoder encodeObject UIImagePNGRepresentation self forKey @ PNGRepresentation..
What's the correct code to save a CGLayer as a PNG file? http://stackoverflow.com/questions/4064470/whats-the-correct-code-to-save-a-cglayer-as-a-png-file CGContextDrawLayerAtPoint ctx CGPointZero layer UIImage image UIGraphicsGetImageFromCurrentImageContext NSData pngData UIImagePNGRepresentation image pngData writeToFile ... atomically YES UIGraphicsEndImageContext not tested share improve..
iOS SDK - Programmatically generate a PDF file http://stackoverflow.com/questions/4362734/ios-sdk-programmatically-generate-a-pdf-file my implementation of addImageView HPDF_ functions are from libHaru void addImageView UIImageView imageView NSData pngData UIImagePNGRepresentation imageView.image if pngData nil HPDF_Image image HPDF_LoadPngImageFromMem _pdf pngData bytes pngData.. are from libHaru void addImageView UIImageView imageView NSData pngData UIImagePNGRepresentation imageView.image if pngData nil HPDF_Image image HPDF_LoadPngImageFromMem _pdf pngData bytes pngData length if image NULL CGRect destRect self rectToPDF.. NSData pngData UIImagePNGRepresentation imageView.image if pngData nil HPDF_Image image HPDF_LoadPngImageFromMem _pdf pngData bytes pngData length if image NULL CGRect destRect self rectToPDF imageView.frame float x destRect.origin.x float y destRect.origin.y..
Save An Image To Application Documents Folder From UIView On IOS http://stackoverflow.com/questions/6821517/save-an-image-to-application-documents-folder-from-uiview-on-ios Data since that can impact performance if the data set grows too large. Better to write the images to files. NSData pngData UIImagePNGRepresentation image This pulls out PNG data of the image you've captured. From here you can write it to a file.. 0 Get the docs directory NSString filePath documentsPath stringByAppendingPathComponent @ image.png Add the file name pngData writeToFile filePath atomically YES Write the file Reading it later works the same way. Build the path like we just did.. atomically YES Write the file Reading it later works the same way. Build the path like we just did above then NSData pngData NSData dataWithContentsOfFile filePath UIImage image UIImage imageWithData pngData What you'll probably want to do is make..
|