drawrect_开发者

how to call drawrect method from another class when it is made in appdelegate class

I have made a method in appdelegate class which is- @implementation UINavigationBar (category) - (void)drawRect:(CGRect)rect{[详细]

2023-04-12 20:03 分类：问答

iPhone UITableViewCell performance adding multiple Views vs one View with drawRect

I am creating some UITableViewCells with several custom items inside, my question is what route to go:[详细]

2023-04-11 10:18 分类：问答

UIView drawRect is jerky

UIView drawRect is jerky i.e., does not scroll smoothly across the screen. I have tried performing \'setNeedsDisplay\' at various intervals from 200-ms to 500-ms and nothing seems[详细]

2023-04-11 06:42 分类：问答

Any possible way to call drawRect from a UIViewcontroller class?

I have a UIViewController class called AppController.h, AppController.m. I have thousands of lines of code in there, and that is the only reason why I didn\'t test this before I asked it. Is there any[详细]

2023-04-10 15:41 分类：问答

How to implement a custom Focus Ring in drawRect for NSTextField or NSTextVew

I want to draw a custom focus ring for my NSTextView subclass (which doesn\'t have a focus ring by default). I managed to implement it by overriding the parent NSScrollView drawRect and adding this co[详细]

2023-04-10 13:12 分类：问答

Any possible way for CoreGraphics to not lag when drawrect is being called from touches moved?

I am calling setNeedsDisplay from touches moved (and have also tried not calling from touches moved, but instead from a 0.05 timer) and the drawrect method is always laggy. Is their anyway to change t[详细]

2023-04-10 06:35 分类：问答

Actionscript 3.0 drawRect works weird

I have a BitmapData object named myBitmapData. It was loaded of PNG of size 104x104. This PNG represents a red circle on the transparent background.[详细]

2023-04-04 07:47 分类：问答

How to draw using drawRect on top of playing video - Apple IOS, Obj-C

I want to be able to draw custom shapes and so forth o开发者_如何学Pythonn top of a playing movie file. At the moment I have a UIView subclass that I have overwritten the drawRect method in and I do m[详细]

2023-04-03 06:30 分类：问答

CALayer vs CGContext, which is a better design approach?

I have been doing some experimenting with iOS drawing. To do a practical exercise I wrote a BarChart component. The following is the class diagram (well, I wasnt allowed to upload images) so let me wr[详细]

2023-04-02 16:44 分类：问答

UIBezierPath Gives Sharp Edges

When I\'m using a UIBezierPath to draw where the user is touching if the user moves to fast sometimes I get really hard points like the tip of a triangle. Any clue what might be causing th开发者_如何学[详细]

2023-04-01 05:57 分类：问答