The sharing functionality within iOS applications is facilitated by a specific view controller. In iOS 13, this component presents users with a standardized interface for sharing data to various services, such as messaging apps, social media platforms, and cloud storage providers. It also offers options for performing actions on the data, like copying, printing, or saving to files. An example would be allowing a user to share a photo from a photo library to their Instagram account directly from within a third-party application.
Its implementation offers several advantages. It ensures a consistent user experience across different applications, simplifying the sharing process for the user. The system manages the available sharing options, adapting them based on the data type being shared and the installed applications on the device. Furthermore, using this controller promotes best practices in data sharing and helps maintain user privacy by adhering to system-level permissions and controls. The introduction of system-provided capabilities of this type marked a shift towards standardizing user interactions across the iOS ecosystem.
