序号	录入时间	录入人	备注
1	2015-03-04	Alfred Jiang	-
2	2015-12-22	Alfred Jiang	-

动画 - Core Animation 之 Key Path

动画 \ Core Animation \ CAAnimation \ CALayer

CAAnimation 、 CALayer 实现动画需求时 setValue:forKeyPath: 和 valueForKeyPath: 支持的 Key Path 速查

表 1 支持的 Key Path 类型

表 2 CATransform3D key paths

Field Key Path	Description
rotation.x	The rotation, in radians, in the x axis.
rotation.y	The rotation, in radians, in the y axis.
rotation.z	The rotation, in radians, in the z axis.
rotation	The rotation, in radians, in the z axis. This is identical to setting the rotation.z field.
scale.x	Scale factor for the x axis.
scale.y	Scale factor for the y axis.
scale.z	Scale factor for the z axis.
scale	Average of all three scale factors.
translation.x	Translate in the x axis.
translation.y	Translate in the y axis.
translation.z	Translate in the z axis.
translation	Translate in the x and y axis. Value is an NSSize or CGSize.

    [myLayer setValue:[NSNumber numberWithFloat:10.0] forKeyPath:@"transform.translation.x"];

表 3 CGPoint Key Paths

Structure Field	Description
x	The x component of the point.
y	The y component of the point.

表 4 CGSize Key Paths

Structure Field	Description
width	The width component of the size.
height	The height component of the size.

表 5 CGRect Key Paths

Structure Field	Description
origin	The origin of the rectangle as a CGPoint.
origin.x	The x component of the rectangle origin.
origin.y	The y component of the rectangle origin.
size	The size of the rectangle as a CGSize.
size.width	The width component of the rectangle size.
size.height	The height component of the rectangle size.

动画 - Core Animation 之 Key Path

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