passing array from one viewcontroller to another

i have a custom tabBar class in which i switch three view controller开发者_如何学JAVAs ,i am removing the presentview controller and presenting the other .

custom tabbar class

-list

-inbox

-messages

now i have to pass an array from list to inbox i usually create an instance of the recieving class like

Inbox *inbox=[[Inbox alloc]init];
inbox.array=self.array;  

but in this case its not working.the array in inbox class returns null when i nslog it

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Do you inherit or use the UITabBarController in your custom tabBar?

If you want to pass a variable between list<->inbox<->messages I would suggest that you implement a method in the tabBar that can be called from the subviews. The method would send the array to the appropriate subview.

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Check your property in Inbox class and check to see if self.array is not null.

Edit try: inbox.array = [NSArray arrayWithArray:self.array]

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ok this worked when i passed the value to applicationdelegate and from the other class accessed from here.