AlertView not showing up from async method...

[mohibsheth]

Hi,

This may not actually be an issue, but I didnt know how else to contact you so creating this issue so maybe you could help.

I have an MvvmCross app where I load data from a web service. so the command method somewhat looks like this...

public void DoSearch()
{
    var res = await SearchService.GetList();
}

The GetList implementation is...

public async Task<T> GetList()
{
     if(GetNetworkStatus())
          DoNetwork();
     else
          DoLocal();
}

The GetNetworkStatus function is where I am trying to check for network availability and prompt user to retry or go offline.

var retry = await Mvx.Resolve<IUserInteraction>().ConfirmAsync("Network is unavailable. Do you want to Retry or go Offline?", "Network Error", "Retry", "Offline");

The Alert is never shown when I use this line in GetNetworkStatus. If I use this same line in my ViewModel command or even in GetList of my service... it works but does not work in GetNetworkStatus.

Would you happen to know why?

[brianchance]

I think you need to await the GetNetworkStatus call in GetList and make GetNetworkStatus async...

if (await GetNetworkStatus())

[mohibsheth]

Thanks for your prompt response.

I am sorry for not specifying that in my message earlier. I am doing GetNetworkStatus().Result. Does that not await automatically? I will still try as you mentioned tomorrow at work and get back to you.

[brianchance]

Doing .Result should await, however the alert dialog is being run on the UI thread which might be causing confusion.

[mohibsheth]

So await should resolve this issue right? I will certainly try this tomorrow and let you know the outcome.

[mohibsheth]

Hey Brian, Thanks. Using await has resolved the issue. :)