ios - SKPaymentQueue.defaultQueue().addPayment(payment) 在 VC Swift 之间移动时崩溃

Question

IAP 正在运行，但是当我在 View 之间移动并返回到 IAP VC 时，应用程序在 SKPaymentQueue.defaultQueue().addPayment(payment) ERROR: EXC_BAD_ACCESS< 中崩溃

Answer 1

我找到了解决方案，您需要清除 viewWillDisappear 中的 SKPaymentQueue

Update Swift 4.x

override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)
    SKPaymentQueue.default().remove(self)
}

Swift 2.3

override func viewWillDisappear(animated: Bool) {
    super.viewWillDisappear(animated: animated)
    SKPaymentQueue.defaultQueue().removeTransactionObserver(self)
}