iphone - Best way to store class variables? -

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I am making a very simple game, but I can not determine what my custom class will use. I just know two ways of doing this, but think about the rules of other people where you kept some things. I would like to know how I should use the variable, I am using it efficiently, and I expected that I can find answers here.

Actually, this is my header file. 

  # Import & lt; Foundation / Foundation. H & gt; #import "URWInventoryView.h" @ Interface RWInventory: NSObject {URWInventoryView * inventoryWindow; Bull slot is encapsulated [5] [5]; Int numbersoffices; Int number offslotfil; Int number of columns; Int numberoffro; } // ///// //// Initial //// // - (ID) initWithSlots: (int) slots; - (id) initWithColumns: (int) column and row: (integer) rows; - (ID) initWithInventoryData: (RWInventory *) list; // //// ////Seters//// // - (zero) set slot: (int) slots; - (zero) set column: (int) column; - (zero) setrise: (integer) rows; - (zero) setSlotIsOccupiedColumn: (int) column and row: (int) line; - (zero) moveItemAtColumn: (int) column and row: (int) row to column: (int) newColumn and row: (int) newRow; // ////////Getter//// // - (Int) slot; - (int) column; - (integer) rows; - (BOOL) slotIsOccupiedColumn: (int) column and row: (int) line; @And   
 This first method uses what I was talking about earlier. The second method involves using a single  NSDictionary  between the  #import  and the  @interface  declaration, and they assign the data of each object to a key . The above method seems very easy and efficient for me.  
 Please keep in mind that I am using anywhere between five and twenty items of this type. My last note:  URWInventoryView  is one of my custom classes, and it's based on a UIView.   
 
 
 This is not entirely clear, but I will take a shot at it. I am sorry if I am not here in the right ballark. What I am able to parse with the question, your question basically sprouts in two options:  
     
  1.   Global Dictionary : The Global Dictionary contains all the items kept for each Store an inventory view (example 5 - 20) or ...  
  2.   See an example of viewing the data : For each instance of an inventory view, an inventory is a data object.   
     As long as there is no reason that you need global access, then I would recommend using visualization data per view. I always start with data that requires data, which is needed locally and then returns to create global data if necessary. If the data needs to be shared between scenes, then I will make a model and consider the singleton pattern to access the model (Inventory Mode * Invo = [Inventory Model Sharing Instance]). Search for Singleton Objective-C  
     But once again, unless there is a requirement, I will localize the data on the data that is running on the data. Global and shared data can always complicate the lifetime of the data and possibly synchronization.

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