sqllite xamarin.forms async stops responding

Question

I am trying to do async with sql lite and Xamarin by following this tutorial

https://docs.microsoft.com/en-us/learn/modules/store-local-data-with-sqlite/6-exercise-use-sqlite-asynchronously

when I do this the whole app stops responding why ?

statusMessage.Text = "";
var people = App.PersonRepo.GetAllPeopleAsync();
peopleList.ItemsSource = people;

Answer 1

调用async方法时需要使用await

var people = await App.PersonRepo.GetAllPeopleAsync()