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2014/10/15 ¤U¤È 10:13:24
iphone Programming Glossary: resultimagehttp://stackoverflow.com/questions/1286096/getting-image-from-url-server sendSynchronousRequest request returningResponse response error error request release self handleError error UIImage resultImage UIImage imageWithData NSData result NSLog @ urlString @ urlString return resultImage This function does not return the expected.. self handleError error UIImage resultImage UIImage imageWithData NSData result NSLog @ urlString @ urlString return resultImage This function does not return the expected image although I can see in debugger that NSData for the Image object has some..
http://stackoverflow.com/questions/3333652/load-image-from-photo-library
CoreGraphics for retina display http://stackoverflow.com/questions/4707465/coregraphics-for-retina-display CGRectMake 0 0 originalWidth originalHeight image CGImage CGImageRef cgImage CGBitmapContextCreateImage ctx UIImage resultImage UIImage alloc initWithCGImage cgImage CGContextRelease ctx CGImageRelease cgImage return resultImage How do I change this.. ctx UIImage resultImage UIImage alloc initWithCGImage cgImage CGContextRelease ctx CGImageRelease cgImage return resultImage How do I change this to make it retina compatible. Thanks in advance for your help Best DV iphone core graphics retina.. devices to ensure you do all your manipulation at double resolution. Then you need to change the initialization of resultImage to use initWithCGImage scale orientation and input the same scale factor. This is what makes Retina devices render the output..
iPhone - CGImageCreateWithImageInRect rotating some camera roll pictures http://stackoverflow.com/questions/5076617/iphone-cgimagecreatewithimageinrect-rotating-some-camera-roll-pictures CGRectMake 0 0 rect.size.width rect.size.height imageRef CGImageRef ref CGBitmapContextCreateImage bitmap UIImage resultImage UIImage imageWithCGImage ref CGImageRelease imageRef CGContextRelease bitmap CGImageRelease ref return resultImage share..
How to properly crop an image taken on iPhone 4G (with EXIF rotation data)? http://stackoverflow.com/questions/7203847/how-to-properly-crop-an-image-taken-on-iphone-4g-with-exif-rotation-data with images that have EXIF rotation information is to use this dude's code but instead of using this line UIImage resultImage UIImage alloc initWithCGImage resultImageRef autorelease You should call this UIImage resultImage UIImage alloc initWithCGImage.. is to use this dude's code but instead of using this line UIImage resultImage UIImage alloc initWithCGImage resultImageRef autorelease You should call this UIImage resultImage UIImage alloc initWithCGImage resultImageRef scale 1.0 orientation.. this line UIImage resultImage UIImage alloc initWithCGImage resultImageRef autorelease You should call this UIImage resultImage UIImage alloc initWithCGImage resultImageRef scale 1.0 orientation originalImage.imageOrientation autorelease The second..
iOS - How to achieve emboss effect for the text on UILabel? http://stackoverflow.com/questions/8467141/ios-how-to-achieve-emboss-effect-for-the-text-on-uilabel CGSizeMake 0 1 1 UIColor colorWithWhite 0 alpha .15 .CGColor image drawAtPoint CGPointZero UIImage resultImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return resultImage Finally you can combine those functions.. drawAtPoint CGPointZero UIImage resultImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return resultImage Finally you can combine those functions to create an embossed image of your string. I put my final image into a UIImageView..
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