问题描述
我的应用程序有一个包含4个视图控制器的标签栏。第三个视图控制器包含商店应用内购买。在这个控制器中,我使用一个管理应用程序内购买的对象(产品请求,购买,交易等......),这些对象允许我获取并显示价格描述ecc。
My application has a tabbar that contains 4 view controllers. The third view controller contains a "store in-app purchases". In this controller I use an object that manages in-app purchases (product request, purchase, transaction etc...) that allow me to get and show price description ecc.
问题是:如果我在请求启动时更改标签,应用程序有时会崩溃,但并非总是如此。
The problem is: If I change tabs while the request started the app crashes sometimes, but not always.
我要在viewDidDisappear中取消请求吗?
[productsRequest cancel]此代码崩溃。
I've to cancel the request in viewDidDisappear?[productsRequest cancel] this code crashes.
推荐答案
我遇到同样的问题。
修复它取消请求,一切正常。
I have the same issue.To fix it cancel request and all be fine.
var request: SKProductsRequest! //global to cancel when disappear
//request products when you want (viewDidLoad for example)
request = SKProductsRequest(productIdentifiers: productID as! Set<String>)
request.delegate = self
request.start()
当disapear viewcontroller:
And when disapear viewcontroller:
override func viewDidDisappear(animated: Bool) {
super.viewDidDisappear(animated)
request.delegate = nil;
request.cancel()
SKPaymentQueue.defaultQueue().removeTransactionObserver(self)
}
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