Within the realm of cross-platform mobile development using Flutter, specifically when targeting iOS, controlling the sequence in which available cameras are accessed or displayed presents a technical challenge. This refers to the order in which the operating system enumerates and makes accessible the front-facing and rear-facing cameras to the Flutter application using a camera plugin. For instance, the default camera selection upon app launch or the arrangement presented to the user in a camera selection menu is governed by this sequencing.
The significance of camera sequence management lies in enhancing user experience and ensuring application compatibility. A predictable and controllable camera order allows developers to dictate which camera (front or rear) is initially presented, catering to application-specific use cases. Historically, inconsistent camera enumeration across different iOS devices and versions has necessitated developers to implement custom solutions to ensure a consistent and desired camera order, improving usability and mitigating potential compatibility issues related to camera feature support.