应用程式内购买iPhone的SDK

Question

我有应用程式内购买的应用程序，我完成应用程式内的代码方面，还有在我的ViewController购买按钮，当用户敲击这个按钮，它经历了支付过程中，如果收到付款是广告获得成功，我只是需要启用刚刚买旁边的按钮button.i得到付款sucess，如果支付是广告获得成功，我需要启用按钮报警，我早前禁用。 按钮点击

if ([SKPaymentQueue canMakePayments]) { 
        // Yes, In-App Purchase is enabled on this device! 
        // Proceed to fetch available In-App Purchase items. 

        // Replace "Your IAP Product ID" with your actual In-App Purchase Product ID, 
        // fetched from either a remote server or stored locally within your app. 
        SKProductsRequest *prodRequest= [[SKProductsRequest alloc] initWithProductIdentifiers: [NSSet setWithObject: @"com.mycompny.myproduct"]]; 
        prodRequest.delegate = self; 
        [prodRequest start]; 
        // Replace "Your IAP Product ID" with your actual In-App Purchase Product ID. 
        SKPayment *paymentRequest = [SKPayment paymentWithProductIdentifier: @"com.mycompny.myproduct"]; 

        // Assign an Observer class to the SKPaymentTransactionObserver, 
        // so that it can monitor the transaction status. 
        [[SKPaymentQueue defaultQueue] addTransactionObserver:inappObserver]; 

        // Request a purchase of the selected item. 
        [[SKPaymentQueue defaultQueue] addPayment:paymentRequest]; 

       } else { 
        // Notify user that In-App Purchase is disabled via button text. 
        [inappButton setTitle:@"In-App Purchase is Disabled" forState:UIControlStateNormal]; 
        inappButton.enabled = NO; 

我需要在上面的代码，以便在inapppurchaseobserver.m

- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions { 
    for(SKPaymentTransaction *transaction in transactions) { 
     switch (transaction.transactionState) { 

      case SKPaymentTransactionStatePurchasing: 
       // Item is still in the process of being purchased 
       break; 

      case SKPaymentTransactionStatePurchased: 
       // Item was successfully purchased! 

       // --- UNLOCK FEATURE OR DOWNLOAD CONTENT HERE --- 
       // The purchased item ID is accessible via 
       // transaction.payment.productIdentifier 

       // After customer has successfully received purchased content, 
       // remove the finished transaction from the payment queue. 
       [[SKPaymentQueue defaultQueue] finishTransaction: transaction]; 
       break; 

      case SKPaymentTransactionStateRestored: 
       // Verified that user has already paid for this item. 
       // Ideal for restoring item across all devices of this customer. 

       // --- UNLOCK FEATURE OR DOWNLOAD CONTENT HERE --- 
       // The purchased item ID is accessible via 
       // transaction.payment.productIdentifier 

       // After customer has restored purchased content on this device, 
       // remove the finished transaction from the payment queue. 
       [[SKPaymentQueue defaultQueue] finishTransaction: transaction]; 
       break; 

      case SKPaymentTransactionStateFailed: 
       // Purchase was either cancelled by user or an error occurred. 

       if (transaction.error.code != SKErrorPaymentCancelled) { 
        // A transaction error occurred, so notify user. 
       } 
       // Finished transactions should be removed from the payment queue. 
       [[SKPaymentQueue defaultQueue] finishTransaction: transaction]; 
       break; 
     } 
    } 
} 

名为_btnunlockfeature

按钮

case SKPaymentTransactionStatePurchased: 
        // Item was successfully purchased! 

        // --- UNLOCK FEATURE OR DOWNLOAD CONTENT HERE --- 
        // The purchased item ID is accessible via 
        // transaction.payment.productIdentifier 

        // After customer has successfully received purchased content, 
        // remove the finished transaction from the payment queue. 
        [[SKPaymentQueue defaultQueue] finishTransaction: transaction]; 

我想我在这里要编写启用的代码，此代码在NSobject中不在sam中e viewcontroller.please帮助我做到这一点。

Answer 1

// 
- (void)completeTransaction:(SKPaymentTransaction *)transaction 
{ 
    [self recordTransaction:transaction]; 
    [self provideContent:transaction.payment.productIdentifier]; 
    [self finishTransaction:transaction wasSuccessful:YES]; 

} 


- (void)finishTransaction:(SKPaymentTransaction *)transaction wasSuccessful:(BOOL)wasSuccessful 
{ 
    // remove the transaction from the payment queue. 
    [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; 

    NSDictionary *userInfo = [NSDictionary dictionaryWithObjectsAndKeys:transaction, @"transaction" , nil]; 
    if (wasSuccessful) 
    { 

     // send out a notification that we’ve finished the transaction 
     [[NSNotificationCenter defaultCenter] postNotificationName:kInAppPurchaseManagerTransactionSucceededNotification object:self userInfo:userInfo]; 

      UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Content successfully purchased" message:nil delegate:nil cancelButtonTitle:@"Okay" otherButtonTitles:nil, nil]; 
      [alert show]; 
      [alert release]; 
      count = 1; 

    } 
    else 
    { 
     // send out a notification for the failed transaction 
     [[NSNotificationCenter defaultCenter] postNotificationName:kInAppPurchaseManagerTransactionFailedNotification object:self userInfo:userInfo]; 
    } 


} 



- (void)provideContent:(NSString *)productId 
{ 
    if ([productId isEqualToString:kInAppPurchaseProUpgradeProductId]) 
    { 
     // enable the pro features 
     // Save the Value stating user Did purchase Sound Pack 
     NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; 
     [defaults setBool:YES forKey:@"SoundPack"]; 
     [defaults synchronize]; 
    } 
} 

我不喜欢它this..Storing在NSUserDefaults的 ..和检索这的ViewController