public static async Task <List <BarModel> > GenerateData(StatisticsViewModel vm, UIColor up, UIColor down)
#endif
{
var models = new List <BarModel>();
if (vm.GroupsEventsCount.Count == 0)
{
await vm.ExecuteRefreshCommand();
}
int previous = -1;
foreach (var eventInGroup in vm.GroupsEventsCount)
{
var color = previous == -1 || previous < eventInGroup.Value ? up : down;
models.Add(new BarModel()
{
Value = eventInGroup.Value, Color = color, Legend = vm.FromUnixTime(eventInGroup.Key).ToString("MM/dd/yy")
});
previous = eventInGroup.Value;
}
return(models);
}
protected override async void OnAppearing()
{
base.OnAppearing();
await viewModel.ExecuteRefreshCommand();
if (viewModel.CheckInData.Count > 0)
{
var max = Device.Idiom == TargetIdiom.Phone ? 7.0 : 16.0;
var factor = max / (double)viewModel.CheckInData.Count;
if (factor > 1.0)
{
factor = 1.0;
}
else if (factor < .1)
{
factor = .1;
}
//Chart.PrimaryAxis.ZoomFactor = factor;
}
else
{
//Chart.IsVisible = false;
}
}