maui-app-lifecycle

The main .NET MAUI app lifecycle events are OnStart, OnSleep, and OnResume, which manage transitions across the four app states: Not Running, Running, Deactivated, and Stopped. These events handle typical app flows and window lifecycle events.

To preserve state during backgrounding in .NET MAUI, use state-preservation patterns to save and restore transient UI state during the OnSleep event, and restore it during OnResume to handle backgrounding and resume behavior correctly.

Yes, .NET MAUI lifecycle mapping works cross-platform across Android, iOS/Mac Catalyst, and Windows. It instruments state transitions and window lifecycle events consistently, mapping platform-specific lifecycle behavior for each operating system.

No, you should not use MAUI lifecycle events for page navigation events or platform API specifics. The functional scope is limited to mapping app lifecycle events and state preservation patterns across typical app flows.

The best way to handle window lifecycle events in MAUI is to instrument cross-platform window events directly within your app lifecycle flow, ensuring consistent behavior across Android, iOS/Mac Catalyst, and Windows platforms.