UI Thread issue with view model in MVVMCross
mvvm, mvvmcross
Solution
Method `RequestMainThreadAction` is now obsolete. Today you have to do
var dispatcher = Mvx.Resolve<IMvxMainThreadAsyncDispatcher>();
await dispatcher.ExecuteOnMainThreadAsync(()=> { .... });
Problem
I am using MVVMCross with my cross-platform Windows Phone and Android app. In the core project's main view model, I am doing some background work using TPL and I want to make sure that in the callback, when I make changes to the properties of the view model which will trigger UI change, that the code is run on UI thread, how do I achieve this? For code, here is how it likes ``` private MvxGeoLocation _currentLocation; private Task<MvxGeoLocation> GetCurrentLocation() { return Task.Factory.StartNew(() => { while (_currentLocation == null && !LocationRetrievalFailed) { } return _currentLocation; }); } var location = await GetCurrentLocation(); if (LocationRetrievalFailed) { if (location == null) { ReverseGeocodingRequestFailed = true; return; } // Show toast saying that we are using the last known location } Address = await GooglePlaceApiClient.ReverseGeocoding(location); ```