In-app purchase - SKPaymentTransactionStatePurchased called all the time

Discussion in 'iOS Programming' started by Danneman101, Apr 11, 2011.

  1. macrumors 6502

    Joined:
    Aug 14, 2008
    #1
    I'm trying to implement an in-app purchase that unlocks a non-consumable file by setting a setting-variable to "yes".

    I've set up a test user, and tried purchasing, and it seems to work.

    Code:
    - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
    {
    	if   (![[[NSUserDefaults standardUserDefaults] stringForKey:@"settings_FULL_VERSION"] isEqualToString:@"yes"])  
    	{		
            if ([SKPaymentQueue canMakePayments]) {
                SKProductsRequest *productsRequest = [[SKProductsRequest alloc] initWithProductIdentifiers:[NSSet setWithObject:@"com.mysite.myapp.fullversion"]];
                productsRequest.delegate = self;
                [productsRequest start];
     
                [self purchase];
                
            } else {
                NSLog(@"Parental-controls are enabled");
            }
    }
    
    - (void)purchase 
    {    
    	SKPayment *payment = [SKPayment paymentWithProductIdentifier:@"com.mysite.myapp.fullversion"];
    	[[SKPaymentQueue defaultQueue] addTransactionObserver:self];
    	[[SKPaymentQueue defaultQueue] addPayment:payment];
    }
    - (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response {
    	SKProduct *validProduct = nil;
    	int count = [response.products count];
    	if (count > 0) {
    		validProduct = [response.products objectAtIndex:0];
    	} else if (!validProduct) {
    		NSLog(@"No products available");
    	}
    }
    - (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions {
    	for (SKPaymentTransaction *transaction in transactions) {
    		switch (transaction.transactionState)   {
    			case SKPaymentTransactionStatePurchasing:
    				break;
    		
    			case SKPaymentTransactionStatePurchased:
    				// Set:		settings_FULL_VERSION = YES
    				[[NSUserDefaults standardUserDefaults] setObject:@"yes" forKey:@"settings_FULL_VERSION"];
    				// DEBUG: 
    				NSLog(@"SETTING SET TO YES");
    				[[SKPaymentQueue defaultQueue] finishTransaction:transaction];
    				break;
    				
    			case SKPaymentTransactionStateRestored:
    				[[SKPaymentQueue defaultQueue] finishTransaction:transaction];				
    				break;
    				
    			case SKPaymentTransactionStateFailed:
    				if (transaction.error.code != SKErrorPaymentCancelled) {
    					NSLog(@"An error encounterd");
    				}				
    				[[SKPaymentQueue defaultQueue] finishTransaction:transaction];
    				break;
    		}
    	}
    }
    
    The problem is that even though I choose to cancel the transaction, the "settings_FULL_VERSION" is set to "yes".

    In other words, the SKPaymentTransactionStatePurchased-case is always called, despite having uninstalled and reinstalled the app on my test-device, and even when having created a new product ID for the in-app purchase item.

    Can anybody spot where I've gone wrong with this code?
     

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