iOS Global Variables

[RPGamerL99]

Please tell me there is a way to make a variable open for any class in the program to use because i can not figure out how to get the drawView class to recognize variables i declared in App Delegate. it is because i am initiating some variables in applicationDidFinishLaunching. (OpenGL ES template under new project).

 

[robbieduncan]

If you are doing this you are probably doing it wrong. Read up on proper OO design and the MVC pattern.

 

[firewood]

The OP asked about global variables, not about OO design and MVC patterns.

You can use standard C conventions for declaring, instantiating and using global variables outside your Cocoa object declarations. Read any complete generic C tutorial. Be aware of the pitfalls of using global variables in large or reusable code projects.

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[ayasin]

You can get at your delegate by using [[UIApplication sharedInstance] delegate] and casting it to your delegate, in the case you're describing you don't need global variables.

 

[RPGamerL99]

I'm not sure how to use [[UIApplication sharedInstance] delegate] properly. Is there online documentation available?

 

[RPGamerL99]

I decided to access those variables with methods, but for other classes to access those methods, they have to be in protocols right? Can someone show me how to implement a protocol or point me in the right direction?