NSObject is the root class of most Objective-C class hierarchies; it has no superclass.
I'm trying to teach myself objective-c using the big nerd ranch book, it is a really great book but certain …
objective-c c nsobjectWhat is the significance of WaitUntilDOne in performSelectorOnMainThread? IN what way the YES or NO set to WaitUntilDone can have …
objective-c ios nsobject