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2014/10/15 ¤U¤È 10:05:00
iphone Programming Glossary: cgcolorrefDrawing rotated text with NSString drawInRect http://stackoverflow.com/questions/10289898/drawing-rotated-text-with-nsstring-drawinrect CGContextSaveGState context CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceRGB Create the gradient CGColorRef startColor UIColor colorWithRed 1.0 green 1.0 blue 1.0 alpha 1.0 .CGColor CGColorRef endColor UIColor colorWithRed 200.0.. Create the gradient CGColorRef startColor UIColor colorWithRed 1.0 green 1.0 blue 1.0 alpha 1.0 .CGColor CGColorRef endColor UIColor colorWithRed 200.0 255.0 green 200.0 255.0 blue 200.0 255.0 alpha 1.0 .CGColor NSArray colors NSArray arrayWithObjects..
http://stackoverflow.com/questions/13579209/two-colors-for-uilabel-text We can change them if we use mutable form of CFAttributeString. Lets choose the colors we want to have in our string CGColorRef _orange UIColor orangeColor .CGColor CGColorRef _green UIColor greenColor .CGColor CGColorRef _red UIColor redColor .CGColor.. Lets choose the colors we want to have in our string CGColorRef _orange UIColor orangeColor .CGColor CGColorRef _green UIColor greenColor .CGColor CGColorRef _red UIColor redColor .CGColor CGColorRef _blue UIColor blueColor .CGColor.. to have in our string CGColorRef _orange UIColor orangeColor .CGColor CGColorRef _green UIColor greenColor .CGColor CGColorRef _red UIColor redColor .CGColor CGColorRef _blue UIColor blueColor .CGColor Lets have our string with first 20 letters as..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel font UIFont systemFontOfSize 13 CTFontRef ctFont CTFontCreateWithName CFStringRef font.fontName font.pointSize NULL CGColorRef cgColor UIColor whiteColor .CGColor NSDictionary attributes NSDictionary dictionaryWithObjectsAndKeys id ctBoldFont id..
Drawing waveform with AVAssetReader http://stackoverflow.com/questions/5032775/drawing-waveform-with-avassetreader blackColor .CGColor CGContextSetAlpha context 1.0 CGRect rect rect.size imageSize rect.origin.x 0 rect.origin.y 0 CGColorRef leftcolor UIColor whiteColor CGColor CGColorRef rightcolor UIColor redColor CGColor CGContextFillRect context rect CGContextSetLineWidth.. 1.0 CGRect rect rect.size imageSize rect.origin.x 0 rect.origin.y 0 CGColorRef leftcolor UIColor whiteColor CGColor CGColorRef rightcolor UIColor redColor CGColor CGContextFillRect context rect CGContextSetLineWidth context 1.0 float halfGraphHeight.. blackColor .CGColor CGContextSetAlpha context 1.0 CGRect rect rect.size imageSize rect.origin.x 0 rect.origin.y 0 CGColorRef leftcolor UIColor whiteColor CGColor CGColorRef rightcolor UIColor redColor CGColor CGContextFillRect context rect CGContextSetLineWidth..
How do you explicitly animate a CALayer's backgroundColor? http://stackoverflow.com/questions/518192/how-do-you-explicitly-animate-a-calayers-backgroundcolor to animate the backgroundColor property of a Core Animation CALayer but I can't figure out how to properly wrap a CGColorRef value to pass to the animation. For example CGColorSpaceRef rgbColorspace CGColorSpaceCreateDeviceRGB CGFloat values 4 1.0.. the animation. For example CGColorSpaceRef rgbColorspace CGColorSpaceCreateDeviceRGB CGFloat values 4 1.0 0.0 0.0 1.0 CGColorRef red CGColorCreate rgbColorspace values CGColorSpaceRelease rgbColorspace CABasicAnimation selectionAnimation CABasicAnimation.. platform independent way iphone cocoa osx core animation share improve this question You don't need to wrap CGColorRefs when setting the toValue or fromValue properties of a CABasicAnimation. Simply use the CGColorRef. To avoid the compiler..
Implement custom animation to present modal view from specified view on iPad http://stackoverflow.com/questions/6605959/implement-custom-animation-to-present-modal-view-from-specified-view-on-ipad modalViewController animated NO Remove the shadow. It causes weird artifacts while animating the view. CGColorRef originalShadowColor modalViewController.view.superview.layer.shadowColor modalViewController.view.superview.layer.shadowColor..
http://stackoverflow.com/questions/962827/uiimage-shadow-trouble try adding something like this right before the call to CGContextDrawImage ... CGFloat components 4 0.0 0.0 0.0 1.0 CGColorRef shadowColor CGColorCreate colorSpace components CGContextSetShadowWithColor imageContext CGSizeMake 3 3 2 shadowColor CGColorRelease..
http://stackoverflow.com/questions/9762969/cgcolorref-causing-crash causing crash I've had a crash in my code and I've tracked it all the way back to a line crashing when being passed 2 CGColorRefs... causing crash I've had a crash in my code and I've tracked it all the way back to a line crashing when being passed 2 CGColorRefs. Here are the objects CGColorRef startColor UIColor colorWithWhite 0.92 alpha 1.0 CGColor CGColorRef endColor UIColor colorWithWhite.. my code and I've tracked it all the way back to a line crashing when being passed 2 CGColorRefs. Here are the objects CGColorRef startColor UIColor colorWithWhite 0.92 alpha 1.0 CGColor CGColorRef endColor UIColor colorWithWhite 0.94 alpha 1.0 CGColor..
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