在iOS中恢复购买 [英] Restoring purchases in iOS

问题描述

我正在恢复购买，所以我几乎没有怀疑

I am working on restoring purchases, So I have few doubts

1）如何显示恢复按钮

1) How to show restore button

我已在左上角显示它，点击它我调用此函数

I have shown it on top left corner, and on click of it I call this function

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

    }

但是如果用户没有购买anyItem或者如果用户购买了一个项目但没有删除并重新安装应用程序，是否仍然需要显示restoreButton，如果是，点击它应该是它的行为。

But What if the user has not purchased anyItem or what if the user has purchased an item but not deleted and reinstalled the app, Whether I still need to show the restoreButton, and if yes, on click of it what should be its behaviour.

2）现在，如果我购买了一个项目并删除了应用程序并重新安装了应用程序，并点击了恢复按钮，则会调用此功能

2) Now, If I have made a purchase of an item and delete the app and reinstall the app, and click on restore button, it calls this function

- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions
{
    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;
        }
    }
}

但现在，假设我不这样做但anyitem只需单击恢复按钮，它会询问我的苹果ID，输入苹果ID后，没有任何反应，它没有调用上述功能，我想知道为什么会发生这种情况。

But now, suppose I dont but anyitem and simply click restore button, it asks me for my apple Id, after entering apple Id, nothing happens, It doesnt call the above function, I want to know why this is happening.

另外，我想向用户显示一条消息，表示没有要恢复的项目，所以我该怎么做。

Also, I want to display a message to user that there are no items to restore, so how can I do that.

我搜索了这个和他们是一个委托函数，如果没有要复制的交易，将被调用

I searched for this and their is one delegate function which will be called,if there are no transactions to retore

- (void)paymentQueueRestoreCompletedTransactionsFinished:(SKPaymentQueue *)queue
{

}

我所做的是在这里我检查了是否有没有要恢复的项目，我将显示没有要恢复的项目，我是否正确的方法。

What I have done is that here I have checked if there are no items to restore, I will display as no items to restore, whether I am right in this approach.

问候
Ranjit

Regards Ranjit

推荐答案

直接来自商店套件头文件

//异步。将当前用户
的已完成事务添加回队列以重新完成。用户将被要求
身份验证。观察者将收到0或更多
-paymentQueue：updatedTransactions：，然后是-paymentQueueRestoreCompletedTransactionsFinished：成功或-paymentQueue：restoreCompletedTransactionsFailedWithError：失败时。在部分成功的情况下，某些交易可能仍然是
交付。

// Asynchronous. Will add completed transactions for the current user back to the queue to be re-completed. User will be asked to authenticate. Observers will receive 0 or more -paymentQueue:updatedTransactions:, followed by either -paymentQueueRestoreCompletedTransactionsFinished: on success or -paymentQueue:restoreCompletedTransactionsFailedWithError: on failure. In the case of partial success, some transactions may still be delivered.

- (void)restoreCompletedTransactions  __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_3_0);

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