ios动画编程文档.pdf

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1、CoreAnimationProgrammingGuideContentsAboutCoreAnimation9AtaGlance9CoreAnimationManagesYourApp’sContent10LayerModificationsTriggerAnimations10LayersCanBeOrganizedintoHierarchies10ActionsLetYouChangeaLayer’sDefaultBehavior10HowtoUseThisDocument11Prerequisites11SeeAlso11CoreAnimationBasics12LayersProvi

2、detheBasisforDrawingandAnimations12TheLayer‐BasedDrawingModel12Layer‐BasedAnimations13LayerObjectsDefineTheirOwnGeometry14LayersUseTwoTypesofCoordinateSystems15AnchorPointsAffectGeometricManipulations17LayersCanBeManipulatedinThreeDimensions19LayerTreesReflectDifferentAspectsoftheAnimationState21The

3、RelationshipBetweenLayersandViews24SettingUpLayerObjects26EnablingCoreAnimationSupportinYourApp26ChangingtheLayerObjectAssociatedwithaView27ChangingtheLayerClassUsedbyUIView27ChangingtheLayerClassUsedByNSView28LayerHostingLetsYouChangetheLayerObjectinOSX28DifferentLayerClassesProvideSpecializedBehav

4、iors29ProvidingaLayer’sContents30UsinganImagefortheLayer’sContent30UsingaDelegatetoProvidetheLayer’sContent30ProvidingLayerContentThroughSubclassing32TweakingtheContentYouProvide33WorkingwithHigh‐ResolutionImages352013‐01‐28

5、©2013AppleInc.AllRightsReserved.2ContentsAdjustingaLayer’sVisualStyleandApp

6、earance35LayersHaveTheirOwnBackgroundandBorder36LayersSupportaCornerRadius37LayersSupportBuilt‐InShadows38FiltersAddVisualEffectstoOSXViews39TheLayerRedrawPolicyforOSXViewsAffectsPerformance40AddingCustomPropertiestoaLayer42PrintingtheContentsofaLayer‐BackedView42AnimatingLayerContent43AnimatingSimp

7、leChangestoaLayer’sProperties43UsingaKeyframeAnimationtoChangeLayerProperties45SpecifyingKeyframeValues46SpecifyingtheTimingofaKeyframeAnimation46StoppinganExplicitAnimationWhileItIsRunning47AnimatingMultipleChangesTogether48DetectingtheEndofanAnimation49HowtoAnimateLayer‐BackedViews50RulesforModify

8、ingLayersiniOS50RulesforModifyingLayersinOSX51RemembertoUpdateViewConstraintsasPartofYourAnimation52BuildingaLayerHierarchy53ArrangingLayersintoaLayerHierarchy53Adding,Inserting,andRemovingSublayers53