如何在ios中存储和获取应用内购买的响应？

我已在我的项目中实施了应用内购买。 实施效果很好，但我有一个问题是存储响应。

我解锁了按钮，当我通过应用内购买时，按钮将被解锁，响应变为真实。

但是当我回到上课时，我又回到了这堂课，然后又重新锁定了这个按钮，因为我无法存储响应。

我这样做：

.h file bool isPurchased; -(void) successfulPurchase:(EBPurchase*)ebp restored:(bool)isRestore identifier:(NSString*)productId receipt:(NSData*)transactionReceipt { NSLog(@"ViewController successfulPurchase"); // Purchase or Restore request was successful, so... // 1 - Unlock the purchased content for your new customer! // 2 - Notify the user that the transaction was successful. if (!isPurchased) { // If paid status has not yet changed, then do so now. Checking // isPurchased boolean ensures user is only shown Thank You message // once even if multiple transaction receipts are successfully // processed (such as past subscription renewals). isPurchased = YES; if([[[NSUserDefaults standardUserDefaults] objectForKey:@"isPurchased"] isEqualToString:@"true"]){ isPurchased = YES; // do something } else{ isPurchased = NO; //isFailed = NO; // do something } //------------------------------------- // 1 - Unlock the purchased content and update the app's stored settings. //------------------------------------- // 2 - Notify the user that the transaction was successful. NSString *alertMessage; if (isRestore) { // This was a Restore request. alertMessage = @"Your purchase was restored and the Game Levels Pack is now unlocked for your enjoyment!"; } else { // This was a Purchase request. alertMessage = @"Your purchase was successful and the Game Levels Pack is now unlocked for your enjoyment!"; // if (my_unlock_button == TRUE) { buyButton.hidden=YES; // These are the buttons I unlocked buybutton1.hidden=YES; // These are the buttons I unlocked //} } UIAlertView *updatedAlert = [[UIAlertView alloc] initWithTitle:@"Thank You!" message:alertMessage delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [updatedAlert show]; [updatedAlert release]; } } 

如何存储和获取响应，以便我可以检查响应？

非常欢迎来自专家的任何想法或建议。

Answer 1

你需要实现它。

购买成功后，在NSUserDefaults设置一个bool ，如：

 [[NSUserDefaults standardUserDefaults] setBool:YES ForKey:@"isPurchased"]; 

在类的viewDidLoad中，写如：

 if([[NSUserDefaults standardUserDefaults] boolForKey:@"isPurchased"]) { //Enable/show the button } else { //disable/hide button } 

这是一个很好的教程 ，请参考它

Answer 2

我开发了非消费品的storekit 。 你可以尝试一下。 ;）

快乐的编码！