Thank you for contacting Syncfusion support.
Based on the provided information, we have checked your requirement of refreshing the Schedule when the minimize / sleep the application in Xamarin.Forms and it can be achieved. Schedule holds as in the memory when application sleeps, when the time / date changing or manually changing the default time, it won’t affect the Schedule because application in sleeps. By calling the NavigateTo method in Schedule while Resuming the application, it can be refreshed.
In the application OnResume override method, called the NavigateTo method of Schedule with current time. So that, Schedule will move to the updated current date while resuming the application from sleep. Please refer the following code example for the same,
protected override void OnResume ()
// Handle when your app resumes
We have prepared sample for the same,
Please let us know, if this helpful.
Subburaj Pandian V