PKPaymentAuthorizationViewController present as nil view controller

丶灬走出姿态 提交于 2019-12-04 17:57:56

Did you implement these methods to check before trying to present the viewcontroller?

// Determine whether this device can process payment requests.
// YES if the device is generally capable of making in-app payments.
// NO if the device cannot make in-app payments or if the user is restricted from authorizing payments.
+ (BOOL)canMakePayments;

// Determine whether this device can process payment requests using specific payment network brands.
// Your application should confirm that the user can make payments before attempting to authorize a payment.
// Your application may also want to alter its appearance or behavior when the user is not allowed
// to make payments.
// YES if the user can authorize payments on this device using one of the payment networks supported
// by the merchant.
// NO if the user cannot authorize payments on these networks or if the user is restricted from
// authorizing payments.
+ (BOOL)canMakePaymentsUsingNetworks:(NSArray *)supportedNetworks;
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