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
Whenever I want to make a timer, I just do: [NSTimer scheduledTimerWithTimeInterval:5.0 target:self selector:@selector(someMethod)
I got a really interesting question. Inside one of my classes I declared a very simple instance method -(NSDictionary)dictionary;
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...
I have a method that returns a CGImageRef object. It contains this call: CGImageRef posterFrame = [avAssetImage copyCGImageAtTime:time actualTime:nil error:&error];
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
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:
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
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
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
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