Property of two classes [duplicate] - objective-c

Question

This question already has an answer here:
How to make a property of a property
(1 answer)
Closed 9 years ago.
I want to have a result that looks like this player.type.property, An example of this is with UILabel, self.label.text. The .text being the property of the two classes.
A suggestion I have had is to do something like this:
player.type = [[MyCustomObject alloc] init];
player.type.property = #"value";
Although I'm not quite sure exactly how to go about doing this correctly, every method I have tried doesn't work.
Here is what I have tried:
Marketplace.h
#import "Item.h"
#interface Marketplace : NSObject
#property (nonatomic, assign) Item *market;
Item.h
#interface Item : NSObject
#property (nonatomic, assign) int price;
Starter.m
#import "Marketplace.h"
#import "Item.h"
#implementation MainGameDisplay
{
Marketplace *market;
Item *itemName;
}
-(void) executedMethod {
market.itemName = [[market alloc] init];
//2 errors: "Property 'itemName not found on object of type 'MarketPlace'" and "No visible #interface for 'MarketPlace' declares the selector alloc"
market.itemName.price = 5; //"Property 'itemName' not found on object of type 'Marketplace*'"
}

Answer 1

Each pointer to class object must be alloc init, so you need to over-write the -(id)init inside its class.
Item.h
#interface Item : NSObject
#property (nonatomic) NSInteger price;
Marketplace.h
#import "Item.h"
#interface Marketplace : NSObject
#property (nonatomic, strong) Item *item;//Item is a class, must use strong or retain
Marketplace.m
-(id)init{
if (self = [super init]) {
self.item = [[Item alloc] init];//Item must alloc together when MarcketPlace init
}
return self;
}
*Then you just init the Marketplace
#implementation MainGameDisplay
{
Marketplace *market;
Item *itemName;
}
-(void) executedMethod {
market = [Marketplace alloc] init];
//Now you can access
market.item.price = 5;
}

Answer 2

1 . make a Interface named PlayerType Put some property there and synthesize them.
2. now make a Interface named Player and import the PlayerType Interface there.
3. make a property of PlayerType Interface like #property(nonatomic, strong) PlayerType *type.
now made variable of Player it will allow you to access property of a property.