foundation
Get default port for scheme?
Is there a way to find out what port number a NSURLRequest will use to satisfy a particular NSURL? Obviousl开发者_StackOverflowy, I could hard code port 80 for http request and port 443 for https req[详细]
2023-04-11 05:02 分类：问答Memory management of NSTimer -- does it need to be assigned to a variable?
Whenever I want to make a timer, I just do: [NSTimer scheduledTimerWithTimeInterval:5.0 target:self selector:@selector(someMethod)[详细]
2023-04-10 07:06 分类：问答About -(NSDictionary)dictionaryWithObjectsAndKeys: and
I got a really interesting question. Inside one of my classes I declared a very simple instance method -(NSDictionary)dictionary;[详细]
2023-04-07 06:35 分类：问答Interpose OS X API in a plugin
I have an app that loads a CFPlugin, not a problem, using the Apple boiler plate code. The plugin has a bug - and its someone else\'s binary...[详细]
2023-04-01 09:50 分类：问答How to Autorelease a CGImageRef?
I have a method that returns a CGImageRef object. It contains this call: CGImageRef posterFrame = [avAssetImage copyCGImageAtTime:time actualTime:nil error:&error];[详细]
2023-03-27 21:49 分类：问答What is the logic behind having a mutable and immutable versions of classes like NSArray, NSDictionary etc in Objective C?
Why do common collection classes in Objective C like NSString, NSArray, NSDictionary etc have a mutable as well as 开发者_如何学Can immutable version. What is the logic behind defining them separately[详细]
2023-03-17 14:11 分类：问答What classes can be used as a key in NSDictionary?
Can we use only NSString objects as key in an NSDictionary? How do we know which objec开发者_如何学Pythonts can be used and which cannot?From the documentation:[详细]
2023-03-17 08:51 分类：问答How to link/synchronize animation to a video recording in real time
App Descrtiption: Speedometer.Has needle dial and animated needle as overlay on the video.I output the animation of the needle onto the video via post-processing.I use AVAssetExportSession, and constr[详细]
2023-03-16 17:27 分类：问答i want to read .bin file in my objective -c project and want to parse data accordingly
i want read data from the binary f开发者_运维百科ile named \"xyz.bin\"and want to parse data according to algorithm can any buddy suggest how toget dat from binary file and perform read and write oper[详细]
2023-03-16 07:36 分类：问答How to get inout to an NSString?
How to get input from an NSString as scanf开发者_如何学Go (\"%@\", &str); doesn\'t work?scanf will read into a C string and not into a NSString (as far as I know). So, to do what you\'re trying to[详细]
2023-03-14 11:01 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......