如何提供storekit內容？

Question

對於我的應用程序，我已經足夠了，它會要求確認併爲應用內購買帳戶，但我不知道如何在購買完成後啓用該項目。

SKPayment *payment = [SKPayment paymentWithProductIdentifier:@"com.silver.tapp.page2"]; 

[[SKPaymentQueue defaultQueue] addPayment：payment];

多數民衆贊成我至今

[[p2Controller tabBarItem] setEnabled:TRUE]; 

這是我想執行

Answer 1

首先你應該回去檢討In App Purchase的documentation，蘋果提供的代碼 - 他們勾勒出這詳細瞭解它，並且瞭解他們正在做什麼是有用的。

你缺少的是SKPaymentTransactionObserver - 你有責任實現這個觀察者，你添加爲SKPaymentTransactionQueue的觀察者。 Apple建議您將應用程序啓動時的觀察者添加到默認隊列中，以便它能夠觀察在您的應用程序運行時發生的所有事務。

本質上，您需要編寫自己的實現SKPaymentTransactionObserver協議的類。此類所要做的就是觀察當iTunes商店處理付款時從支付隊列中獲取回調，並讓您捕獲成功和失敗事件。

下面是付款觀察骨架：

PaymentObserver.h

#import <StoreKit/StoreKit.h> 

@interface PaymentObserver : NSObject <SKPaymentTransactionObserver> { 
} 

- (void) completeTransaction: (SKPaymentTransaction *)transaction; 
- (void) restoreTransaction: (SKPaymentTransaction *)transaction; 
- (void) failedTransaction: (SKPaymentTransaction *)transaction; 

@end 

PaymentObserver.m

#import "PaymentObserver.h" 
@implementation PaymentObserver 

- (void)paymentQueue:(SKPaymentQueue *)queue removedTransactions:(NSArray *)transactions 
{ 
    // handle payment cancellation 
} 

- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions 
{ 
    // handle the payment transaction actions for each state 
    for (SKPaymentTransaction *transaction in transactions) 
    { 
    switch (transaction.transactionState) 
    { 
     case SKPaymentTransactionStatePurchased: 
     [self completeTransaction:transaction];   
     break; 
     case SKPaymentTransactionStateFailed: 
     [self failedTransaction:transaction];   
     break; 
     case SKPaymentTransactionStateRestored: 
     [self restoreTransaction:transaction];   
     default: 
     break; 
    } 
    } 
} 



- (void) completeTransaction: (SKPaymentTransaction *)transaction; 
{ 
    // Record the transaction 
    //... 

    // Do whatever you need to do to provide the service/subscription purchased 
    //... 

    // Remove the transaction from the payment queue. 
    [[SKPaymentQueue defaultQueue] finishTransaction: transaction]; 

} 

- (void) restoreTransaction: (SKPaymentTransaction *)transaction 
{ 
    // Record the transaction 
    //... 

    // Do whatever you need to do to provide the service/subscription purchased 
    //... 

    [[SKPaymentQueue defaultQueue] finishTransaction: transaction]; 
} 

- (void) failedTransaction: (SKPaymentTransaction *)transaction 
{ 
    if (transaction.error.code != SKErrorPaymentCancelled) 
    { 
    // Optionally, display an error here.  
    } 
    [[SKPaymentQueue defaultQueue] finishTransaction: transaction]; 
} 

@end 

一旦實現了PaymentObserver您需要關閉添加實例它作爲交易觀察者的默認支付隊列。

// Done at app launch... 
PaymentObserver *paymentObserver = [[PaymentObserver alloc] init]; 
[[SKPaymentQueue defaultQueue] addTransactionObserver:paymentObserver];