相关疑难解决方法(0)

我想在UIView上执行透视变换(例如在coverflow中看到)

有谁知道这是否可能？

我已经调查过使用CALayer并且已经完成了所有实用的程序员Core Animation播客,但我仍然不清楚如何在iPhone上创建这种转换.

任何帮助,指针或示例代码片段将非常感谢!

根据文档,它应该支持模糊,请注意"在iOS 5.0及更高版本中可用":

CIFilter类参考

但根据该设备,它不会:

[CIFilter filterNamesInCategory:kCICategoryBlur];

没有回报.

根据以下内容,我的iPhone和模拟器上只有这些过滤器可用(它们都运行5.0):

[CIFilter filterNamesInCategory:kCICategoryBuiltIn]

CIAdditionCompositing,
CIAffineTransform,
CICheckerboardGenerator,
CIColorBlendMode,
CIColorBurnBlendMode,
CIColorControls,
CIColorCube,
CIColorDodgeBlendMode,
CIColorInvert,
CIColorMatrix,
CIColorMonochrome,
CIConstantColorGenerator,
CICrop,
CIDarkenBlendMode,
CIDifferenceBlendMode,
CIExclusionBlendMode,
CIExposureAdjust,
CIFalseColor,
CIGammaAdjust,
CIGaussianGradient,
CIHardLightBlendMode,
CIHighlightShadowAdjust,
CIHueAdjust,
CIHueBlendMode,
CILightenBlendMode,
CILinearGradient,
CILuminosityBlendMode,
CIMaximumCompositing,
CIMinimumCompositing,
CIMultiplyBlendMode,
CIMultiplyCompositing,
CIOverlayBlendMode,
CIRadialGradient,
CISaturationBlendMode,
CIScreenBlendMode,
CISepiaTone,
CISoftLightBlendMode,
CISourceAtopCompositing,
CISourceInCompositing,
CISourceOutCompositing,
CISourceOverCompositing,
CIStraightenFilter,
CIStripesGenerator,
CITemperatureAndTint,
CIToneCurve,
CIVibrance,
CIVignette,
CIWhitePointAdjust