Maintain variables across multiple Views

Apprentice

Posts: 6
Joined: 2008.11

Post: #1

Dec 14, 2008 — 09:34 PM

Hello,
I need to use some variables in multiple views. I have different .m files for different Views.

I kept the variables in AppDelegate that will be used in different Views. Whenever I need any of them I create a pointer to AppDelegate using sharedApplication method, and access that variable through the AppDelegate pointer (using dot (.) operator). Is it fair? Or there is a better approach? If there is a better approach, please describe it. Is my approach creating any cyclic reference (Since, AppDelegate has a pointer to a View object which is creating pointer to AppDelegate to access to another View instance)? Let me give an example,

AppDelegate.h

Code:

#import "View1.h"

#import "View2.h"

@interface AppDelegate : NSObject <UIApplicationDelegate>{

 View1* v1;

 View2* v2;

}

View2.cpp

Code:

#import "AppDelegate.h"

-(void) someMethod{

 AppDelegate *appDel = (AppDelegate *) [[UIApplication sharedApplication] delegate];

 [appDel.v1 someMethodOfView1];

}

pierre

Apprentice

Posts: 8
Joined: 2008.09

Post: #2

Dec 17, 2008 — 06:42 AM

Maybe this post can help you out:

http://iphonedevelopertips.com/objective...ables.html

Cheers,

Pierre

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