用於iOS非消費類應用程序內購買的恢復按鈕

Question

不幸的是，由於沒有恢復按鈕，Apple拒絕了我的應用程序。 我希望為用戶提供無縫體驗，但存在一些問題。

- (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];
    }
  }

以上是一個很好的解決方案嗎？ 邏輯是：

1. 用戶按下按鈕即可刪除應用內購買。
2. 檢查用戶是否已經購買（用戶必須輸入用戶名和密碼）
3. 如果用戶已進行購買，請恢復
4. 如果用戶尚未進行購買，請提示付款（用戶必須再次輸入密碼）。

這種方法的問題是：1。額外的服務器調用2.用戶必須輸入兩次詳細信息。

有沒有人真正實現了可以演示的“恢復”按鈕？

Answer 1

無需實現自己的邏輯只需實現這一點

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

這將調用此方法

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

這將調用這些委托方法以實現事務成功或失敗

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

Answer 2

將此代碼添加到已添加還原按鈕的頁面：

- (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);
    }
}

Answer 3

Apple拒絕使用In App Purchase的應用程序，該應用程序沒有恢復購買按鈕。 在應用視圖中，添加還原按鈕。 然后在In App Purchase幫助程序類中，添加以下方法：

- (void)restoreCompletedTransactions {
    [[SKPaymentQueue defaultQueue] restoreCompletedTransactions]; 
}

現在從按鈕單擊操作調用此方法，它將恢復以前的購買。

Answer 4

*- (IBAction)restorePreviousTransaction:(id)sender {
    [[SKPaymentQueue defaultQueue] addTransactionObserver:self];
    [[SKPaymentQueue defaultQueue] restoreCompletedTransactions];
}
delegate method call:
 - (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions
{
   case SKPaymentTransactionStateRestored:
                if ([self respondsToSelector:@selector(restoreTransaction:)]) {
                    [self restoreTransaction:transaction];
                    return;                
}
- (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);
    }
}*