IExtensionProvider.GetExtension

Returns

T The Extension type.

Description

Get the store-specific extension of specified type.

Sample class using GetExtension to restore previously completed purchase transactions:

#pragma strict
public class MyStoreClass extends MonoBehaviour {
	var m_ExtensionProvider: IExtensionProvider;
	function Awake() {
		var builder: ConfigurationBuilder = ConfigurationBuilder.Instance(StandardPurchasingModule.Instance());
		builder.AddProduct("levelpackfoo", ProductType.NonConsumable);
		UnityPurchasing.Initialize(this, builder);
	}
	public function OnInitialized(controller: IStoreController, extensions: IExtensionProvider) {
		m_ExtensionProvider = extensions;
	}
	public function OnInitializeFailed(error: InitializationFailureReason) {
	}
	public function ProcessPurchase(e: PurchaseEventArgs) {
		return PurchaseProcessingResult.Complete;
	}
	public function OnPurchaseFailed(item: Product, r: PurchaseFailureReason) {
	}
	public function RestoreTransactions() {
		if (m_ExtensionProvider != null) {
			// button, per Apple's In-App Purchase Programming Guide. 
			var apple: IAppleExtensions = m_ExtensionProvider.GetExtension.<IAppleExtensions>();
			apple.RestoreTransactions(function(result) {
				// Restore purchases initiated. See ProcessPurchase for any restored transactions.
			}
			);
		}
	}
}

using UnityEngine;
using UnityEngine.Purchasing;

public class MyStoreClass : MonoBehaviour, IStoreListener {
    IExtensionProvider m_ExtensionProvider;
    void Awake() {
        ConfigurationBuilder builder = ConfigurationBuilder.Instance(StandardPurchasingModule.Instance());
        builder.AddProduct("levelpackfoo", ProductType.NonConsumable);
        UnityPurchasing.Initialize(this,builder);
    }
    public void OnInitialized(IStoreController controller, IExtensionProvider extensions) {
        m_ExtensionProvider = extensions;
    }
    public void OnInitializeFailed(InitializationFailureReason error) {}
    public PurchaseProcessingResult ProcessPurchase(PurchaseEventArgs e) { return PurchaseProcessingResult.Complete; }
    public void OnPurchaseFailed(Product item, PurchaseFailureReason r) {}
    public void RestoreTransactions() {
        if (m_ExtensionProvider != null) {
            // NOTICE: No need here for Application.platform tests. Move platform tests to UI. 
            // Extensions are designed in a way to work regardless of which platform they are
            // run on. For the UI, only when on Apple platforms display a "Restore Purchases" 
            // button, per Apple's In-App Purchase Programming Guide. 
            IAppleExtensions apple = m_ExtensionProvider.GetExtension<IAppleExtensions>();
            apple.RestoreTransactions((result) => {
                // Restore purchases initiated. See ProcessPurchase for any restored transactions.
            });
        }
    }
}