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2014/10/15 ¤U¤È 10:09:25
iphone Programming Glossary: fromrectHow to programmatically change the hue of UIImage? http://stackoverflow.com/questions/11555071/how-to-programmatically-change-the-hue-of-uiimage 1318452 CIContext context CIContext contextWithOptions nil CGImageRef resultRef context createCGImage resultCore fromRect resultCore extent UIImage result UIImage imageWithCGImage resultRef CGImageRelease resultRef return result share improve..
http://stackoverflow.com/questions/14042260/extract-a-part-of-uiimageview @end then crop it to your rect via another category method @implementation UIImage Crop UIImage cropFromRect CGRect fromRect fromRect CGRectMake fromRect.origin.x self.scale fromRect.origin.y self.scale fromRect.size.width self.scale fromRect.size.height.. crop it to your rect via another category method @implementation UIImage Crop UIImage cropFromRect CGRect fromRect fromRect CGRectMake fromRect.origin.x self.scale fromRect.origin.y self.scale fromRect.size.width self.scale fromRect.size.height.. rect via another category method @implementation UIImage Crop UIImage cropFromRect CGRect fromRect fromRect CGRectMake fromRect.origin.x self.scale fromRect.origin.y self.scale fromRect.size.width self.scale fromRect.size.height self.scale CGImageRef..
iPhone button with non-rectangle shape? http://stackoverflow.com/questions/1561585/iphone-button-with-non-rectangle-shape be drawn depending on if the button is pressed or not void drawRect NSRect aRect stateImage drawInRect self bounds fromRect NSMakeRect 0.0 0.0 buttonImage size .width buttonImage size .height operation NSCompositeSourceOver fraction 1.0 At this..
http://stackoverflow.com/questions/158914/cropping-a-uiimage assuming hoping that drawing to an offscreen view wasn't one of these. Am I wrong Oh how I miss NSImage's drawInRect fromRect operation fraction method. iphone objective c cocoa touch image manipulation share improve this question I'm going..
Return a subimage from a UIImage http://stackoverflow.com/questions/4475881/return-a-subimage-from-a-uiimage be easily modified to work without it being a category. A shorter way of doing the same thing is the following CGRect fromRect CGRectMake 0 0 320 480 or whatever rectangle CGImageRef drawImage CGImageCreateWithImageInRect image.CGImage fromRect UIImage.. fromRect CGRectMake 0 0 320 480 or whatever rectangle CGImageRef drawImage CGImageCreateWithImageInRect image.CGImage fromRect UIImage newImage UIImage imageWithCGImage drawImage CGImageRelease drawImage Hope this helps share improve this answer..
Having trouble creating UIImage from CIImage in iOS5 http://stackoverflow.com/questions/7788438/having-trouble-creating-uiimage-from-ciimage-in-ios5 context CIContext contextWithOptions nil theImageView.image UIImage imageWithCGImage context createCGImage image fromRect image.extent To read more about CIContext take a look here http developer.apple.com library ios #DOCUMENTATION GraphicsImaging..
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