Question

我正在尝试通过非耗材购买启用In内置功能。我可以检索我的产品并进行购买，但是在持续购买时遇到了问题。当我购买产品时，我必须启用视图控制器中的按钮（最初禁用），并且我还保留一个标签，将其名称更改为“已购买”。购买后我的标签文本更改并启用按钮，但是当我停止并运行Xcode时标签状态只保留不是我的按钮，它会回到禁用状态。

**查看控制器**

-(void)Purchased {
    Label.text = @"item has been purchased";
  _newview.enabled=YES;
   NSUserDefaults *saveapp = [NSUserDefaults standardUserDefaults];
   [saveapp setBool:TRUE forKey:k_Save];
    [saveapp synchronize];
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    NSUserDefaults *saveapp = [NSUserDefaults standardUserDefaults];
    bool saved = [saveapp boolForKey:k_Save];
    if (!saved) {
        /// not save code here

    NSLog(@"wooo");
    } else {
        ///saved code here
        Label.text = @"item has been purchased";
    }
    // Do any additional setup after loading the view, typically from a nib.
}

**购买了视图控制器**

-(void)UnlockPurchase {

    _buyButton.enabled = NO;
    [_buyButton setTitle:@"Purchased" forState:UIControlStateDisabled];
    [_homeViewController Purchased];
}

我在更新的事务委托函数中调用了这个“UnlockPurchase”。现在最糟糕的情况是购买后，这个“_buyButton”状态很快就会恢复启用。

此步骤是正确还是错误？如何让购买坚持下去？请帮忙！

Answer 1

尝试在viewDidLoad方法中添加相同的代码（以启用按钮）...

…

bool saved = [saveapp boolForKey:k_Save];
….
} else {
        ///saved code here
        Label.text = @"item has been purchased”;

       //Disable BuyButton
       //Enable your DesiredButton

    }

<强> UPD

将SKPaymentTransactionStateRestored添加到您的方法中：

- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions {
    for (SKPaymentTransaction *transaction in transactions) {

...  
case SKPaymentTransactionStateRestored:[self UnlockPurchase];                
                [[SKPaymentQueue defaultQueue] finishTransaction:transaction];
                break;
....

应用程序内购买问题：购买不持久

1 个答案: