How to access a property of a viewcontroller from another one? iPhone

Question

I define a property in the viewcontroller A

  @property (nonatomic) BOOL updateOnServer;

and also synthesize it, give it values and then I

Answer 1

You can always use a singleton class as follows:

Create a new class as follows:

ServerCheck.h

#import 

@interface ServerCheck : NSObject
{
    BOOL updateOnServer;
}
@property (nonatomic) BOOL updateOnServer;

+ (id)sharedSingletonController;
@end

ServerCheck.m

#import "ServerCheck.h"

@implementation ServerCheck
@synthesize updateOnServer
+(ServerCheck*)sharedSingletonController{

    static ServerCheck *sharedSingletonController;

    @synchronized(self) {
        if(!sharedSingletonController){
            sharedSingletonController = [[ServerCheck alloc]init];
        }
    }

    return sharedSingletonController;
}

-(id)init{
    self = [super init];
    if (self != nil) {

        }
    return self;
}

@end

You can access the BOOL value as follows:

ServerCheck *serverData = [ServerCheck sharedSingletonController];
serverData.updateOnServer = YES;