How can I use the Pay Button with iOS Deployment Target 5.1.1?
The Pay Button runs on iOS7 and up. However, you can still
compile your app with a deployment target of iOS 5.1.1 and disable
the payment functionality on devices below iOS 7. Remove the
following lines from
MPProvider.h
:
#pragma mark -
#pragma mark Callback queue
/**
* Dispatch queue used for block callbacks. If not set (NULL), dispatch_get_main_queue() will be used.
* @since 2.0.0
*/
@property (strong, nonatomic) dispatch_queue_t callbackQueue;