public DialogMenuViewModel(
ApplicationState applicationState,
IApplicationDialog dialog)
: base(applicationState)
{
InformationCommand = MakeAsyncCommand(async() =>
{
await dialog.Information("message");
});
ConfirmCommand = MakeAsyncCommand(async() =>
{
var ret = await dialog.Confirm("message");
await dialog.Information($"result=[{ret}]");
});
SelectCommand = MakeAsyncCommand(async() =>
{
selected = await dialog.Select(Enumerable.Range(1, 15).Select(x => $"Item-{x}").ToArray(), selected);
await dialog.Information($"result=[{selected}]");
});
}
private async ValueTask <IResult <T> > Execute <T>(Func <NetworkService, ValueTask <IRestResponse <T> > > func, bool verbose)
{
while (true)
{
if (!deviceManager.GetNetworkState().IsConnected())
{
if (verbose)
{
await dialogs.Information("Network is not connected.");
}
return(Result.Failed <T>());
}
IRestResponse <T> response;
using (dialogs.Loading("Connecting"))
{
response = await func(networkService);
}
switch (response.RestResult)
{
case RestResult.Success:
return(Result.Success(response.Content));
case RestResult.Cancel:
if (!verbose)
{
return(Result.Failed <T>());
}
else if (!await dialogs.Confirm("Canceled.\r\nRetry ?"))
{
return(Result.Failed <T>());
}
break;
case RestResult.RequestError:
case RestResult.HttpError:
if (verbose)
{
var message = new StringBuilder();
message.AppendLine("Network error.");
if (response.StatusCode > 0)
{
message.AppendLine($"StatusCode={(int)response.StatusCode}");
}
message.AppendLine("Retry ?");
if (!await dialogs.Confirm(message.ToString()))
{
return(Result.Failed <T>());
}
}
else
{
return(Result.Failed <T>());
}
break;
default:
if (verbose)
{
await dialogs.Information("Unknown error.");
}
return(Result.Failed <T>());
}
}
}