how can I tell the app is opened by the iphone 16 camera control button

Generated on 9/26/2024

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To determine if an app is opened by the iPhone 16 camera control button, you can utilize the new locked camera capture framework introduced in iOS 18. This framework allows you to create a custom control that can be part of a widget extension built with WidgetKit. When this control is activated, it can launch your capture experience directly from the lock screen.

To specifically launch your capture experience, you need to implement a new type of system intent called the camera capture intent. This intent helps the system decide whether to launch your capture extension or your application based on the device's state (locked or home screen). When your app or extension is launched with this intent, it indicates that the app was opened via the camera control button.

For more details on implementing this, you can refer to the session Build a great Lock Screen camera capture experience (14:40).