A Swift protocol for iOS/tvOS to automatically show placeholder views for loading, empty, error, and content states.
StatefulViewController is a Swift protocol for iOS and tvOS that automates the presentation of placeholder views based on content, loading, error, or empty states. It solves the problem of manually managing complex view state transitions in networked applications, reducing boilerplate code and potential bugs.
iOS and tvOS developers building applications with networked content who need to handle loading, empty, and error states consistently across view controllers or custom views.
Developers choose StatefulViewController because it provides a robust, protocol-based solution that encapsulates the intricate decision logic of view states, is easy to integrate, and supports customization through hooks and an underlying state machine.
Placeholder views based on content, loading, error or empty states
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Encapsulates the complex decision tree for loading, content, empty, and error states, reducing repetitive code and potential bugs, as illustrated in the README's decision tree diagram.
Easily adopted by UIViewController, UITableViewController, or custom UIView subclasses, promoting cleaner and more maintainable view controller code without inheritance constraints.
Provides hooks like handleErrorWhenContentAvailable for presenting errors even when content is already visible, allowing for unobtrusive alert dialogs or toast messages.
Supports custom insets via the StatefulPlaceholderView protocol, enabling tailored UI designs beyond fullscreen placeholder views.
Requires users to create and configure loading, empty, and error views from scratch, increasing initial setup time, as acknowledged in the README's Todo section.
Setup involves explicit calls to setupInitialViewState() in viewWillAppear and configuring views in viewDidLoad, which can be error-prone if overlooked or misimplemented.
Not compatible with SwiftUI or other modern UI frameworks, restricting its use in projects adopting newer Apple technologies and trends.