What is the role of the AppDelegate class in an IOS app?

What is the role of the AppDelegate class in an IOS app?

The AppDelegate class in an iOS app serves as the central point of control and coordination for the entire application. It acts as the delegate for the UIApplication object and handles various system events and app lifecycle events. The main responsibilities of the AppDelegate class include:

1. Initializing the app and setting up the initial app configuration.
2. Handling app state transitions such as launching, backgrounding, foregrounding, and termination.
3. Managing and responding to system events like memory warnings, network changes, and push notifications.
4. Handling deep linking and universal links.
5. Managing and coordinating app-wide resources and services.
6. Implementing and handling custom URL schemes.
7. Handling remote and local notifications.
8. Managing app-wide data and state.
9. Coordinating and managing app-wide navigation and view hierarchy.
10. Handling app-wide errors and exceptions.

In summary, the AppDelegate class plays a crucial role in managing the overall behavior and functionality of an iOS app.