如何在RubyMotion中旋转图像?
答案 0 :(得分:3)
最后使用Teacup找到它。
Teacup::Stylesheet.new :main do
style :rpng,
image: UIImage.imageNamed("image.png"),
frame: ([[50, 50], [70, 30]]),
layer: {
transform: rotate(identity, pi/3, 0.3, 0.3, 0.3)
}
end
答案 1 :(得分:3)
如果您正在寻找原始的Obj-C到RubyMotion转换,我们已完成here。
class RootController < UIViewController
def viewDidLoad
super
xcode_image = UIImage.imageNamed("ilabs.png")
@xcode_image_view1 = UIImageView.alloc.initWithImage(xcode_image)
@xcode_image_view1.setFrame(CGRectMake(0,0,100,100))
view.backgroundColor = UIColor.whiteColor
view.addSubview(@xcode_image_view1)
end
def viewDidAppear paramAnimated
super
@xcode_image_view1.center = view.center
UIView.beginAnimations("xcodeImageView1Animation", context:nil)
UIView.setAnimationDuration(5)
UIView.setAnimationDelegate(self)
UIView.setAnimationDidStopSelector('clockwiseRotationDidStop:finished:context:')
@xcode_image_view1.transform = CGAffineTransformMakeRotation(3.141592654 / 2)
UIView.commitAnimations
end
def clockwiseRotationDidStop(paramAnimationID, finished:paramFinished, context:paramContext)
p "Animation Finished now rotate back"
UIView.beginAnimations("xcodeImageView1AnimationBack", context:nil)
UIView.setAnimationDuration(5)
@xcode_image_view1.transform = CGAffineTransformIdentity
UIView.commitAnimations
end
end