For security reasons, my application needs to prohibit external devices. If it is determined that the current phone is connected to any external devices, including non MFI authenticated devices, the app will exit. Please tell me how to do it? Thanks for your help.
What sort of “external device”?
In some specific situations you might be able to make some progress here. For example, if you’re using Core Location, you can determine the source of a location using CLLocationSourceInformation. However, there’s no way to check for the presence of any accessory.
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