Add purchase canceled notification

InAppFw.podspec

@@ -5,7 +5,7 @@ Pod::Spec.new do |s|
   s.name = "InAppFw"
   s.summary = "In App Purchase Manager framework for iOS"
   s.requires_arc = true
-  s.version = "0.9.2"
+  s.version = "0.9.3"
   s.license = { :type => "MIT", :file => "LICENSE" }
   s.author = { "Sandor Gyulai" => "sandor.gyulai@icloud.com" }
   s.homepage = "https://github.com/sandorgyulai/InAppFramework"

InAppFw/InAppFw.swift

@@ -23,10 +23,11 @@
 import UIKit
 import StoreKit
 
+let kIAPPurchasedNotification = "IAPPurchasedNotification"
+let kIAPFailedNotification = "IAPFailedNotification"
+
 public class InAppFw: NSObject, SKProductsRequestDelegate, SKPaymentTransactionObserver{
 
-    public let ProductPurchasedNotificationName = "IAPPurchasedNotification"
-
     public static let sharedInstance = InAppFw()
 
     var productIdentifiers: Set<String>?
@@ -185,7 +186,6 @@ public class InAppFw: NSObject, SKProductsRequestDelegate, SKPaymentTransactionO
             print("No productIdentifiers")
             completionHandler(success: false, products: nil)
         }
-
     }
 
     /**
@@ -203,10 +203,8 @@ public class InAppFw: NSObject, SKProductsRequestDelegate, SKPaymentTransactionO
         Check if the product with identifier is already purchased
     */
     public func productPurchased(productIdentifier: String) -> (isPurchased: Bool, hasValidReceipt: Bool) {
-
         let purchased = purchasedProductIdentifiers.contains(productIdentifier)
         return (purchased, hasValidReceipt)
-
     }
 
     /**
@@ -235,23 +233,21 @@ public class InAppFw: NSObject, SKProductsRequestDelegate, SKPaymentTransactionO
     private func failedTransaction(transaction: SKPaymentTransaction) {
         print("Failed Transaction...")
 
-        if (transaction.error!.code != SKErrorPaymentCancelled)
-        {
+        if (transaction.error!.code != SKErrorPaymentCancelled) {
             print("Transaction error \(transaction.error!.code): \(transaction.error!.localizedDescription)")
         }
 
         SKPaymentQueue.defaultQueue().finishTransaction(transaction)
+        NSNotificationCenter.defaultCenter().postNotificationName(kIAPFailedNotification, object: nil, userInfo: nil)
     }
 
     private func provideContentForProductIdentifier(productIdentifier: String!) {
-
         purchasedProductIdentifiers.insert(productIdentifier)
 
         NSUserDefaults.standardUserDefaults().setBool(true, forKey: productIdentifier)
         NSUserDefaults.standardUserDefaults().synchronize()
 
-        NSNotificationCenter.defaultCenter().postNotificationName(ProductPurchasedNotificationName, object: productIdentifier, userInfo: nil)
-
+        NSNotificationCenter.defaultCenter().postNotificationName(kIAPPurchasedNotification, object: productIdentifier, userInfo: nil)
     }
 
     // MARK: - Delegate Implementations
@@ -261,8 +257,7 @@ public class InAppFw: NSObject, SKProductsRequestDelegate, SKPaymentTransactionO
         {
             if let trans = transaction as? SKPaymentTransaction
             {
-                switch trans.transactionState
-                {
+                switch trans.transactionState {
                 case .Purchased:
                     completeTransaction(trans)
                     break

README.md

@@ -17,46 +17,35 @@ pod 'InAppFw'
 
 ### Usage
 
-* Register for Notifications with the name below where you want to do something
-
-```
-ProductPurchasedNotificationName
+First you should add product IDs:
+```swift
+InAppFw.sharedInstance.addProductId(String)
+InAppFw.sharedInstance.addProductIds([String])
 ```
 
-* Add your product identifiers
-
+Then you can request them from the Apple servers:
+```swift
+InAppFw.sharedInstance.requestProducts(completionHandler: (success: Bool, products: [SKProduct]?)
 ```
-InAppFw.sharedInstance.addProductId(id: String)
-```
-
-or add multiple of them
 
+Make purchases:
+```swift
+InAppFw.sharedInstance.purchaseProduct(SKProduct)
 ```
-InAppFw.sharedInstance.addProductIds(ids: Set<String>)
-```
-
-* Request products from Apple
-
-```
-InAppFw.sharedInstance.requestProducts(completionHandler: (success:Bool, products:[SKProduct]?)
-```
-
-* Load the previously purchased products
 
+Restore purchases:
+```swift
+InAppFw.sharedInstance.restoreCompletedTransactions()
 ```
-InAppFw.sharedInstance.loadPurchasedProducts(checkWithApple: Bool, completion: ((valid: Bool) -> Void)?)
-```
-
-"checkWithApple" if true will validate the Purchase receipt with Apple Servers too. The completion will be only true if the receipt was valid
-
-* Purchase product
 
+Register for notifications:
+```swift
+- kIAPPurchasedNotification
+- kIAPFailedNotification
 ```
-InAppFw.sharedInstance.purchaseProduct(product: SKProduct)
-```
-
-* Or Restore products purchased on an other device
 
+Load the previously purchased products:
+```swift
+InAppFw.sharedInstance.loadPurchasedProducts(checkWithApple: Bool, completion: ((valid: Bool) -> Void)?)
 ```
-InAppFw.sharedInstance.restoreCompletedTransactions()
-```
+```checkWithApple```: if ```true```, will validate the Purchase receipt with Apple Servers too. The completion will be only true if the receipt is valid.