NSPageController
NSPageController is a class in the AppKit framework of macOS, designed to manage a collection of pages or views within a single container. Introduced in macOS 10.11 El Capitan, it simplifies the implementation of page-based interfaces, such as document browsers, settings panels, or multi-step forms, by handling navigation between pages automatically.
The primary purpose of NSPageController is to streamline the transition between views while maintaining state consistency.
Key features of NSPageController include:
- **Page Management**: Developers can dynamically add, remove, or reorder pages at runtime, making it adaptable to
- **State Preservation**: The controller automatically saves and restores the current page index, ensuring a smooth user
- **Customization**: Pages can be styled individually, and transitions between them can be animated for a polished
- **Integration with Document-Based Apps**: It works well with NSDocument-based applications, allowing pages to represent different sections
NSPageController is particularly useful for applications requiring a structured, step-by-step interface, such as wizards, multi-tabbed editors,
While NSPageController is not as widely used as other view management systems like NSViewController, it remains