Unity自带IAP插件使用

Unity Services里的Unity IAP对于IOS和GooglePlay的支付用这个插件就足够了。

Unity官方文档

1.集成插件

Window-Services（Ctrl+0）在Services面板Link你的工程，启用In-App Purchase，Import/Update一下，插件就在Assets/Plugins/UnityPurchasing下。

2.设置

以GooglePlay的设置为例

Window - Unity Iap - Android - Target Google Play ：选择GooglePlay，

Window - Unity Iap - Receipt Validation Obfuscator ：输入GooglePlay的PublicKey，

点击Obfuscate secrets后，在Assets/Plugins/UnityPurchasing/generated下会生产GooglePlayTangle自动生成的文件，不用管他。

但是要注意到他的宏定义

#if UNITY_ANDROID || UNITY_IPHONE || UNITY_STANDALONE_OSX || UNITY_TVOS

3.DEMO

插件的demo在Assets/Plugins/UnityPurchasing/scenes/IAP Demo 这个场景里

也可以直接看cs文件，Assets/Plugins/UnityPurchasing/script/IAPDemo.cs
 

主要用到的是UnityEngine.Purchasing.IStoreListener 这个接口

4.初始化

        //使用这个解析IAP成功后的receipt
	private UnityEngine.Purchasing.Security.CrossPlatformValidator validator;
	

	private void InitUnityPurchase() {
		var module = StandardPurchasingModule.Instance();
		var builder = ConfigurationBuilder.Instance (module);

		//添加计费点
		// UnityEngine.Purchasing.ProductType
		builder.AddProduct("item1", ProductType.Consumable, new IDs
			{
				{"苹果计费点", AppleAppStore.Name },
				{"谷歌计费点", GooglePlay.Name}
			}
		);
#if !UNITY_EDITOR
		validator = new CrossPlatformValidator(GooglePlayTangle.Data(), AppleTangle.Data(), Application.bundleIdentifier);
#endif
		UnityPurchasing.Initialize (this, builder);
	}解析IAP成功后的receipt
	private UnityEngine.Purchasing.Security.CrossPlatformValidator validator;
	

	private void InitUnityPurchase() {
		var module = StandardPurchasingModule.Instance();
		var builder = ConfigurationBuilder.Instance (module);

		//添加计费点
		// UnityEngine.Purchasing.ProductType
		builder.AddProduct("item1", ProductType.Consumable, new IDs
			{
				{"苹果计费点", AppleAppStore.Name },
				{"谷歌计费点", GooglePlay.Name}
			}
		);
#if !UNITY_EDITOR
		validator = new CrossPlatformValidator(GooglePlayTangle.Data(), AppleTangle.Data(), Application.bundleIdentifier);
#endif
		UnityPurchasing.Initialize (this, builder);
	}

实现IStoreListener 接口初始化回调

成功：

	private IStoreController m_Controller;
	

	//UNITY IAP初始化成功
	public void OnInitialized (IStoreController controller, IExtensionProvider extensions) {
		m_Controller = controller;

		// On Apple platforms we need to handle deferred purchases caused by Apple's Ask to Buy feature.
		// On non-Apple platforms this will have no effect; OnDeferred will never be called.
		var m_AppleExtensions = extensions.GetExtension ();
		m_AppleExtensions.RegisterPurchaseDeferredListener(OnDeferred);

		var product = m_Controller.products.WithID("item1");
		//价格 (带货币单位的字符串)
		var priceString = product.metadata.localizedPriceString;
		//价格 （换算汇率后的价格）
		var price = product.metadata.localizedPrice;
	}

 

失败：

	//初始化失败（没有网络的情况下并不会调起，而是一直等到有网络连接再尝试初始化）
	public void OnInitializeFailed (InitializationFailureReason error) {
		
		Debug.Log("Billing failed to initialize!");
		switch (error) {
			case InitializationFailureReason.AppNotKnown:
				Debug.LogError("Is your App correctly uploaded on the relevant publisher console?");
				break;
			case InitializationFailureReason.PurchasingUnavailable:
				// Ask the user if billing is disabled in device settings.
				Debug.Log("Billing disabled!");
				break;
			case InitializationFailureReason.NoProductsAvailable:
				// Developer configuration error; check product metadata.
				Debug.Log("No products available for purchase!");
				break;
		}
	}

 

5.发起支付

	public void DoIapPurchase (Action callback) {
		if (m_Controller != null) {
			var product = m_Controller.products.WithID ("item1");
			if (product != null && product.availableToPurchase) {
				//调起支付
				m_Controller.InitiatePurchase(product);
			}
			else {
				callback (false, "no available product");
			}
		}
		else {
			callback ( false, "m_Controller is null");
		}
	}

实现IStoreListener支付回调

成功：

	public PurchaseProcessingResult ProcessPurchase (PurchaseEventArgs e) {
		try {
			var result = validator.Validate (e.purchasedProduct.receipt);
			Debug.Log ("Receipt is valid. Contents:");
			foreach (IPurchaseReceipt productReceipt in result) {
				Debug.Log(productReceipt.productID);
				Debug.Log(productReceipt.purchaseDate);
				Debug.Log(productReceipt.transactionID);

				AppleInAppPurchaseReceipt apple = productReceipt as AppleInAppPurchaseReceipt;
				if (null != apple) {
					Debug.Log(apple.originalTransactionIdentifier);
					Debug.Log(apple.subscriptionExpirationDate);
					Debug.Log(apple.cancellationDate);
					Debug.Log(apple.quantity);
					

					//如果有服务器，服务器用这个receipt去苹果验证。
					var receiptJson = JSONObject.Parse(e.purchasedProduct.receipt);
					var receipt = receiptJson.GetString("Payload");
				}
				
				GooglePlayReceipt google = productReceipt as GooglePlayReceipt;
				if (null != google) {
					Debug.Log(google.purchaseState);
					Debug.Log(google.purchaseToken);
				}
			}
		return PurchaseProcessingResult.Complete;
		} catch (IAPSecurityException) {
			Debug.Log("Invalid receipt, not unlocking content");
			return PurchaseProcessingResult.Complete;
		}
		return PurchaseProcessingResult.Complete;
	}

失败：

	public void OnPurchaseFailed(Product i, PurchaseFailureReason p) {
		Logger.Warning("purchase failed of reason : " + p.ToString());
	}

IOS  deferred：

	/// 

	/// iOS Specific.
	/// This is called as part of Apple's 'Ask to buy' functionality,
	/// when a purchase is requested by a minor and referred to a parent
	/// for approval.
	/// 
	/// When the purchase is approved or rejected, the normal purchase events
	/// will fire.
	/// 
	/// Item.
	private void OnDeferred(Product item)
	{
		Logger.Warning("Purchase deferred: " + item.definition.id);
	}