In my application - there are four buttons named as follows: 开发者_StackOverflow中文版 Top - left
I\'ve got a layer with some complex drawing code in its -drawInContext: method. I\'m trying to minimize the amount of drawing I need to do, so I\'m using -setNeedsDisplayInRect: to update just the cha
开发者_Python百科I am trying to transform a Sprite into a trapezoid, I don\'t really care about the interpolation even though I know without it my image will lose detail. All I really want to do is Tr
I\'m brand new in iPhone animation feature. I wrote a simple testing program to spin a red rectangle; however, the animation doesn\'t act at all. What\'s wrong with my code? Thanks a lot...
I am trying to move some custom drawing code from a view into a CAShapeLayer, which then get added as a sublayer to the original view\'s CALayer. This also works well, but when rotating the device, th
Actually I want to draw the background of a selected NSStatusItem on the CALayer of my custom statusItemView. But since
I\'m trying to rotate an image about the bottom right corner. To do this I know I need to set the layer\'s anchorPoint, but I can\'t access it. I\'ve included the QuartzCore framework in my project. T
I have an GUI cocoa application that is automatically started when the computer is woken from sleep. The application runs in multiple users accounts at the same time and is sometime launched in a user
I\'m having some problems getting CoreAnimation to perform multiple animations in succession on the iPhone simulator. I have many layers in my application that I animate – these layers are all sublay
Louis - Thanks for your input. Here is what I did, and my current issues, which i don\'t understand. The menus (2) are UIImageViews that respond to touch. Each is it\'s own class. The \'sprites\' as
加载中,请稍侯......