Start to create inventory for iPhone

I want to create an inventory for my iphone game.
I have looked at the sample code of inventory posted in this forum.
My issues is how do I start to create the inventory with my on scene.
I have my character in the scene and he picks up random objects, when the object is pick it need to be insert in the inventory. When the item button is touch the inventory box appears.
What I need to do first? Where I must start? I have looked at a lot of codes and I am very confused now. Can someone guide me with the steps. Thank you so much.

A good place to start would probably be the ‘picking up of objects’ part. A typical solution would be to use a trigger collider and OnTriggerEnter(). You could start, for example, by making the object disappear and printing out a simple message on screen whenever the player picks up an item.

Hi Thank you for reply.
I have done the picking up of item. Now i need to know how to insert the picked up item into the inventory.
I am also referring to the inventory package provided by unity.

Oh, sorry - I’m not familiar with that package, but I imagine someone else will be able to help.

I need help on how to insert the picked up item into my Inventory. What are the steps I need to take to make sure the item picked up to be known as the item to be inserted into the inventory…
I will be very grateful if someone could guide me on this as I am been working on this for couple of weeks.
Thank you.

I manage to recognize the item name i picked up and able to print it in the console. What I need to have in order to store the item inside the inventory.
I really need help to understand this. I have been looking at the inventorypackage provided by unity.