Using a object across multiple view controllers

Question

I have been attempting to have a object that I can use across multiple view controllers by following this thread.

One instance across multiple views in Cocoa Touch

But it has not been working for me. So I started with the basics to see what was going on. I created a local instance of the object.

PlayerData *playerOne   = [[PlayerData alloc] init];
playerOne.completedRound += 1;

I can inspect this in the debugger and I see 0 for all values when I create it and then it gets updated by the appropriate line of code so I feel like my object class is written correctly.

When I try to define the object in my header file to like this:

In my UIViewController.h I added the following

#import "PlayerData.h"

PlayerData *playerOne;

@property (nonatomic, retain) PlayerData *playerOne;

In my UIViewContoller.m I have added the following

#import "PlayerData.h"

@synthesize playerOne;

playerOne.completedRound += 1;

I cannot get it to work. The code compiles fine but viewing the instance in the debugger non of the variable ever get set.

Stephen Darlington · Accepted Answer · 2009-05-22 13:53:41Z

1

Couple of possibly silly questions:

Does [PlayerData init] initialise your property to zero?
Does your UIViewController alloc/init the PlayerData object before you try to increment it?

answered May 22, 2009 at 13:53

Stephen Darlington

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1 Comment

Aaron Over a year ago

That was it. I thought since the values were not even 0 that might be a problem but I was think the @synthesize should have done that.

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