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用戶取消在應用程序購買。如何結束交易

2010-12-21 62 views
2

我有一個與iAP的小問題。我的代碼大部分工作。只是當用戶取消購買時，設備不會認爲它已經結束並保留。因此，如果你試圖再次購買，你會購買2件產品......這是不好的，因爲他們只需要一件。我必須缺少一些代碼。我將附上一個控制檯日誌，以便您可以看到發生了什麼。用戶取消在應用程序購買。如何結束交易

2010-12-21 15:47:29.364[204:307] Parental-controls are disabled (I launch the iAP) 
2010-12-21 15:47:33.816[204:307] Win (There are products) 
2010-12-21 15:47:37.043[204:307] Buying... (I pressed buy) 
2010-12-21 15:47:40.661[204:307] FailedTransaction (Essentially I canceled) 
2010-12-21 15:47:40.674[204:307] DefaultAction (which is to dismiss the modal view) 
2010-12-21 15:47:42.738[204:307] Parental-controls are disabled (reopen the iAP view) 
2010-12-21 15:47:44.440[204:307] Win 
2010-12-21 15:47:46.939[204:307] Buying... 
2010-12-21 15:47:46.945[204:307] Buying... 
2010-12-21 15:47:48.414[204:307] FailedTransaction 
2010-12-21 15:47:48.427[204:307] DefaultAction 
2010-12-21 15:47:48.437[204:307] FailedTransaction 
2010-12-21 15:47:48.449[204:307] DefaultAction 
2010-12-21 15:47:50.622[204:307] Parental-controls are disabled 
2010-12-21 15:47:51.314[204:307] Win 
2010-12-21 15:47:51.883[204:307] Buying...(see how it compounds?) 
2010-12-21 15:47:51.889[204:307] Buying... 
2010-12-21 15:47:51.896[204:307] Buying... 
2010-12-21 15:48:10.764[204:307] Posted5 
2010-12-21 15:48:10.782[204:307] Yipeee! 
2010-12-21 15:48:10.810[204:307] Posted5 (It gave the users 15 credits!) 
2010-12-21 15:48:10.869[204:307] Yipeee! 
2010-12-21 15:48:10.897 204:307] Posted5 
2010-12-21 15:48:10.912[204:307] Yipeee!

這裏是我運行代碼：

#import "PurchaserViewController.h" 

@implementation PurchaserViewController 


// Implement viewDidLoad to do additional setup after loading the view, typically from a nib. 
- (void)viewDidLoad { 
    [super viewDidLoad]; 
    [webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"yayadaadul.com/checkcredits.php"]]]; 

    if ([SKPaymentQueue canMakePayments]) { 
     NSLog(@"Parental-controls are disabled"); 

     SKProductsRequest *productsRequest = [[SKProductsRequest alloc] initWithProductIdentifiers:[NSSet setWithObject:@"com.company.name.song"]]; 
     productsRequest.delegate = self; 
     [productsRequest start]; 
    } else { 
     NSLog(@"Parental-controls are enabled"); 
    } 
} 

- (IBAction)purchase { 


    SKPayment *payment = [SKPayment paymentWithProductIdentifier:@"com.changedwe.worksinxcode.song"]; 
    [[SKPaymentQueue defaultQueue] addTransactionObserver:self]; 
    [[SKPaymentQueue defaultQueue] addPayment:payment]; 
} 

- (IBAction)stop { 
    [player stop]; 
} 

- (IBAction)play { 
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
    NSString *documentsDirectory = [paths objectAtIndex:0]; 
    NSString *file = [NSString stringWithFormat:@"%@/Song.mp3", documentsDirectory]; 

    player = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:file] error:nil]; 
    [player play]; 
} 

- (void)downloadFromURL:(NSURL *)url { 
    NSData *data = [NSData dataWithContentsOfURL:url]; 
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
    NSString *documentsDirectory = [paths objectAtIndex:0]; 
    NSString *file = [NSString stringWithFormat:@"%@/Song.mp3", documentsDirectory]; 

    [data writeToFile:file atomically:YES]; 
} 

- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response { 
    SKProduct *validProduct = nil; 
    int count = [response.products count]; 
    if (count > 0) { 
     validProduct = [response.products objectAtIndex:0]; 
     NSLog(@"Win"); 

    } else if (!validProduct) { 
     NSLog(@"No products available"); 


    } 
} 
-(IBAction)home { 
    [self dismissModalViewControllerAnimated:YES]; 

} 


- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions { 
    for (SKPaymentTransaction *transaction in transactions) { 
     switch (transaction.transactionState) { 
      case SKPaymentTransactionStatePurchasing: 
       NSLog(@"Buying..."); 
       break; 
       break; 

      case SKPaymentTransactionStatePurchased: 
       [self downloadFromURL:[NSURL URLWithString:@""]]; 

       NSString *post =[NSString stringWithFormat:@"username=lol&cval=5"]; 

       NSString *hostStr = @"http://mysite.com/subdom/ccredit.php?"; 
       hostStr = [hostStr stringByAppendingString:post]; 
       NSLog(@"Posted5"); 


       NSLog(@"Yipeee!"); 
       [webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://Action to Post.php?"]]]; 



       [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; 

       break; 

      case SKPaymentTransactionStateRestored: 
       [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; 
       NSLog(@"Restored"); 

       break; 

      case SKPaymentTransactionStateFailed: 
       NSLog(@"FailedTransaction"); 
      // [self finishTransaction:transaction wasSuccessful:NO]; 

       if (transaction.error.code != SKErrorPaymentCancelled) { 
        NSLog(@"An error encounterd"); 
       } 

       //You need to clear their purchases here 


       [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; 
       NSLog(@"DefaultAction"); 


       [self dismissModalViewControllerAnimated:YES]; 

       break; 
     } 
    } 
}

來源

2010-12-21 Sum

回答

2

它看起來像你繼續執行purchase操作時都將自己作爲交易的觀察員。按一次，一切正常。再次按下它，您的觀察員委託方法會被調用兩次，這兩次都是針對第二個事務。

來源

2011-07-11 20:29:02 Hollance

+0

實際上，我發現的大多數教程都表明在那裏添加交易觀察員，可能是因爲他們正在考慮一次購買的簡單解決方案。但是，您可以在哪裏添加一次交易觀察員？因爲我讀過，如果你在不正確的時間添加它，你也可能會遇到問題。在我的代碼中，我添加了一個bool變量來檢查事務觀察者是否已添加到不再添加它，但我不認爲這是最好的解決方案，您對此有何看法？ – CarmenA 2015-12-10 11:37:57

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