Local Authentication Embedded UI
Present a standard local authentication view icon in a custom authentication view.
Overview
When you authenticate users with the Local Authentication framework, the framework handles all user interaction by default. If you want to create a custom authentication user interface, build it around an LAAuthenticationView instance. The authentication view displays an icon that users associate with biometric authentication, like the Touch ID icon, and then modifies that icon over time to reflect changes in the authentication state. You can add other text, images, or interactive elements to your custom view as needed.
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For all local authentication operations, the system manages the underlying biometric data, but with a local authentication view, you can customize the authentication interface to match the design of your app. At the same time, familiar iconography helps users understand what you are asking from them.