I am using Buildbox for my game. I implemented custom rewarded ads. The problem is that game music continues when rewarded video is open. I want to mute and unmute after video is watched. I know J...

Basically what I am trying to figure out to do is, say I have one View Controller, called V1, that has a regular view inside it and a button. Now, when you tap that button, I want that button to cr...

I need access address of property but have problem. example code is @interface Rectangle : NSObject { SDL_Rect wall; SDL_Rect ground; } @property SDL_Rect wall; @property SDL_Rect ground; @end ...

I use Xcode 4.5PR and iOS 6beta 2. I didn't change any codes, my application throw an exception mentioned in the Title. I used Debug Window which function caused this exception, but it showing 0...

In Ruby, there's Modules and you can extend a class by "mixing-in" the module. module MyModule def printone print "one" end end class MyClass include MyModule end theOne = MyClass.new theOn...

The compiler seems to have no problem with the two following declarations: NSObject * __weak weakThing; __weak NSObject *anotherWeakThing; Is there a difference between the two? Is the behavior ...

At the moment I'm learning objective c 2.0, and soon I plan on learning assembly language, so I can write an operating system. I know it won't be easy, and I know it will take months, perhaps...

I'm still learning iOS development and have been working with various tutorials and books. Some pre-ARC, some with ARC. In some cases, we're taught to release all of the properties and subviews of...

I haven't been able to figure it out, and there are no websites which explain it clearly enough... what exactly are the purposes of @property and @synthesize? Thanks in advance!

I found an interesting post describing how, in Objective-C 2.0, instance variables can be declared in the implementation file. Consider this example: @interface MyClass {} @end @implementation M...

#import <Foundation/Foundation.h> int main (int argc, const char * argv[]) { NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; // insert code here... NSLog(@"Hello, World!"); ...

I am new to Objective-C (coming from Java) and I think I am getting a pretty good understanding of memory management. But when my app loads, I get a extremely small memory leak, that only occurs wh...

In my quest to update a Core Data model within my iOS project, I'm querying a server for JSON objects that correspond - to some extent - with the managed entities of my model. The end result I'm st...

I've got another problem in the same code... I'm getting this error: initialization method -initWithCharactersNoCopy:length:freeWhenDone: cannot be sent to an abstract object of class NSString_R...