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2014/10/15 ¤U¤È 10:05:03
iphone Programming Glossary: cggradientHow do I add a gradient to the text of a UILabel, but not the background? http://stackoverflow.com/questions/1266179/how-do-i-add-a-gradient-to-the-text-of-a-uilabel-but-not-the-background a UILabel but not the background hey I want to be able to have a gradient fill on the text in a UILabel I know about CGGradient but i dont know how i would use it on a UILabel's text i found this on google but i cant manage to get it to work http silverity.livejournal.com.. 0.0f round 20.0f 4.0f CGContextShowText context self.text UTF8String strlen self.text UTF8String CGContextClip context CGGradientRef gradient CGColorSpaceRef rgbColorspace size_t num_locations 2 CGFloat locations 2 0.0 1.0 CGFloat components 8 1.0 1.0.. components 8 1.0 1.0 1.0 1.0 Start color 1.0 1.0 1.0 0.1 End color rgbColorspace CGColorSpaceCreateDeviceRGB gradient CGGradientCreateWithColorComponents rgbColorspace components locations num_locations CGRect currentBounds self.bounds CGPoint topCenter..
http://stackoverflow.com/questions/16033481/i-am-using-drawlineargradient-function-to-draw-gradient-line-but-the-2-colors CGColor colors UIColor.Red.CGColor UIColor.Green.CGColor float locations 0.0f 0.5f 0.5f 1.0f CGGradient gradient new CGGradient colorSpace colors locations ColorMessage.FontSize width context.SetLineWidth width context.SaveState.. CGColor colors UIColor.Red.CGColor UIColor.Green.CGColor float locations 0.0f 0.5f 0.5f 1.0f CGGradient gradient new CGGradient colorSpace colors locations ColorMessage.FontSize width context.SetLineWidth width context.SaveState context.Clip context.DrawLinearGradient.. that the Mono implementation has the same requirements as the original C implementation. From the documentation of CGGradientCreateWithColors colorSpace colors locations that should correspond to new CGGradient colorSpace colors locations in Mono..
Manually drawing a gradient in iPhone apps? http://stackoverflow.com/questions/227005/manually-drawing-a-gradient-in-iphone-apps
http://stackoverflow.com/questions/2563303/cggradient-in-an-cgpath in an CGPath Is it possible to draw a gradient in a path on the iPhone I'm looking for a replacement of the mac os x method.. colors sizeof colors sizeof CGColorRef kCFTypeArrayCallBacks CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceRGB CGGradientRef gradient CGGradientCreateWithColors colorSpace colorsArr NULL CFRelease colorSpace CFRelease colorsArr Draw a linear.. sizeof CGColorRef kCFTypeArrayCallBacks CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceRGB CGGradientRef gradient CGGradientCreateWithColors colorSpace colorsArr NULL CFRelease colorSpace CFRelease colorsArr Draw a linear gradient from top to bottom..
Adding a CGGradient as sublayer to UILabel hides the text of label http://stackoverflow.com/questions/4850149/adding-a-cggradient-as-sublayer-to-uilabel-hides-the-text-of-label a CGGradient as sublayer to UILabel hides the text of label I want to add the gradient as a background to label. I used the following..
Make Background of UIView a Gradient Without Sub Classing http://stackoverflow.com/questions/844710/make-background-of-uiview-a-gradient-without-sub-classing this question You can use UIColor colorWithPatternImage to produce a patterned background. Example bring your own CGGradient Allocate color space CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceRGB Allocate bitmap context CGContextRef bitmapContext.. allocate myGradient CGFloat locationList 0.0f 1.0f CGFloat colorList 0.0f 0.0f 0.0f 1.0f 0.0f 0.0f 0.0f 0.0f CGGradientRef myGradient CGGradientCreateWithColorComponents colorSpace colorList locationList 2 Draw Gradient Here CGContextDrawLinearGradient.. CGFloat locationList 0.0f 1.0f CGFloat colorList 0.0f 0.0f 0.0f 1.0f 0.0f 0.0f 0.0f 0.0f CGGradientRef myGradient CGGradientCreateWithColorComponents colorSpace colorList locationList 2 Draw Gradient Here CGContextDrawLinearGradient bitmapContext..
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