用于iOS非消费类应用程序内购买的恢复按钮

Question

不幸的是,由于没有恢复按钮,Apple拒绝了我的应用程序.我希望为用户提供无缝体验,但存在一些问题.

- (void)purchaseProUpgrade
{ 
   [[SKPaymentQueue defaultQueue] addTransactionObserver:self];

   // User is prompted for iTunes username and password here (1)
   [[SKPaymentQueue defaultQueue] restoreCompletedTransactions];
}

// Then this delegate Function Will be fired
- (void) paymentQueueRestoreCompletedTransactionsFinished:(SKPaymentQueue *)queue
{
    if( queue.transactions.count == 0 ) {

        [self setUpgradeProductId];

       // User is prompted for iTunes username and password here (2)
        SKPayment *payment = [SKPayment paymentWithProductIdentifier:kInAppPurchaseProUpgradeProductId];
       [[SKPaymentQueue defaultQueue] addPayment:payment];                                                                 

    }else {

      [[NSNotificationCenter defaultCenter] postNotificationName:kInAppPurchaseManagerTransactionSucceededNotification object:self userInfo:NULL];
    }
  }

以上是一个很好的解决方案吗？逻辑是:

1. 用户按下按钮即可删除应用内购买.
2. 检查用户是否已经购买(用户必须输入用户名和密码)
3. 如果用户已进行购买,请恢复
4. 如果用户尚未进行购买,则提示付款(用户必须再次输入密码).

这种方法的问题是:1.额外的服务器调用2.用户必须输入两次详细信息.

有没有人真正实现了可以演示的"恢复"按钮？

Answer 1

无需实现自己的逻辑只需实现这一点

- (IBAction)restorePreviousTransaction:(id)sender {
    [[SKPaymentQueue defaultQueue] addTransactionObserver:self];
    [[SKPaymentQueue defaultQueue] restoreCompletedTransactions];
}

这将调用此方法

 - (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions
{
   case SKPaymentTransactionStateRestored:
                if ([self respondsToSelector:@selector(restoreTransaction:)]) {
                    [self restoreTransaction:transaction];
                    return;                
}

这将调用这些委托方法以实现事务成功或失败

- (void)restoreTransaction:(SKPaymentTransaction *)transaction
-(void)paymentQueue:(SKPaymentQueue *)queue restoreCompletedTransactionsFailedWithError:(NSError *)error
-(void)paymentQueueRestoreCompletedTransactionsFinished:(SKPaymentQueue *)queue

Answer 2

将此代码添加到已添加还原按钮的页面:

- (void)paymentQueue:(SKPaymentQueue *)queue restoreCompletedTransactionsFailedWithError:(NSError *)error {  
     NSLog(@"%@",error);
}

// Call This Function
- (void) checkPurchasedItems
{
    [[SKPaymentQueue defaultQueue] addTransactionObserver:self];
    [[SKPaymentQueue defaultQueue] restoreCompletedTransactions];
}

//Then this delegate Function Will be fired
- (void) paymentQueueRestoreCompletedTransactionsFinished:(SKPaymentQueue *)queue
{
    purchasedItemIDs = [[NSMutableArray alloc] init];
    NSLog(@"received restored transactions: %i", queue.transactions.count);

    for (SKPaymentTransaction *transaction in queue.transactions)
    {
        NSString *productID = transaction.payment.productIdentifier;

        [purchasedItemIDs addObject:productID];

        NSLog(@"%@",purchasedItemIDs);
    }
}