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I’m looking to write a custom lock app to replace the default PIN lock on iOS.
As there are no apps like this available on the App Store currently, its clear that either Apple rejects these types of apps or its just not possible with the currently available APIs.
The app is just for personal use, but I’d just like to know if it’s possible before starting. Anyone know which is the case?
Thanks
You can’t replace the standard lock screen or PIN entry keyboard EXCEPT on jailbroken devices. First, there’s no way to do it with the official SDK. Secondly even if there was Apple would not allow you to modify any of the system applications. If you’re serious about doing it though for “personal use” and are OK with voiding your warranty (and/or possibly bricking your device) you could look into jailbreaking and the tools available. A hint in the right direction would be to learn as much as you can about SpringBoard and mobile substrate. Hope that helps.