private async Task InitializeApp()
{
if (NavigationStackState == null)
{
var SplashScreen = new GradientContentPage()
{
StartColor = Color.FromHex("E6EBEF"),
EndColor = Color.FromHex("A6CFED")
};
var SplashImage = new Image()
{
VerticalOptions = LayoutOptions.FillAndExpand, HorizontalOptions = LayoutOptions.FillAndExpand, WidthRequest = 400, HeightRequest = 400
};
var LoadingIndicator = new ActivityIndicator()
{
IsRunning = true, Color = Color.FromHex("8CB9DB"), VerticalOptions = LayoutOptions.Center, HorizontalOptions = LayoutOptions.Center
};
var LoadingError = new Label()
{
TextColor = Color.FromHex("ff3333"), VerticalOptions = LayoutOptions.Center, HorizontalOptions = LayoutOptions.Center
};
var SplashGrid = new Grid()
{
VerticalOptions = LayoutOptions.FillAndExpand,
HorizontalOptions = LayoutOptions.FillAndExpand,
ColumnDefinitions = new ColumnDefinitionCollection()
{
new ColumnDefinition()
{
Width = new GridLength(1, GridUnitType.Star)
},
new ColumnDefinition()
{
Width = new GridLength(7, GridUnitType.Star)
},
new ColumnDefinition()
{
Width = new GridLength(1, GridUnitType.Star)
}
},
RowDefinitions = new RowDefinitionCollection()
{
new RowDefinition()
{
Height = new GridLength(1, GridUnitType.Star)
},
new RowDefinition()
{
Height = new GridLength(7, GridUnitType.Star)
},
new RowDefinition()
{
Height = new GridLength(1, GridUnitType.Star)
},
new RowDefinition()
{
Height = new GridLength(1, GridUnitType.Star)
}
},
};
SplashGrid.Children.Add(SplashImage, 1, 1);
SplashGrid.Children.Add(LoadingIndicator, 1, 2);
SplashGrid.Children.Add(LoadingError, 1, 3);
SplashScreen.Content = SplashGrid;
SplashImage.Source = ImageSource.FromFile("splash_logo.png");
SplashImage.Aspect = Aspect.AspectFit;
MainPage = new NavigationPage(SplashScreen);
NavigationPage.SetHasNavigationBar(SplashScreen, false);
var CreateTablesTask = DB.CreateTablesAsync();
var CreateTablesResult = await CreateTablesTask;
if (!CreateTablesResult.Success)
{
LoadingIndicator.IsVisible = false;
LoadingError.IsVisible = true;
LoadingError.Text = CreateTablesResult.Message;
return;
}
ContentPage NextForm = UserId.Value != Guid.Empty ?
(ContentPage) new MainMenu()
{
StartColor = Color.FromHex("E6EBEF"),
EndColor = Color.FromHex("A6CFED")
} :
(ContentPage) new LoginForm()
{
StartColor = Color.FromHex("E6EBEF"),
EndColor = Color.FromHex("A6CFED")
};
await Task.Delay(2000);
await MainPage.Navigation.PushAsync(NextForm);
MainPage.Navigation.RemovePage(SplashScreen);
}
else
{
MainPage = new NavigationPage();
for (int i = 0; i < NavigationStackState.Length; i++)
{
if (NavigationStackState[i] != null)
{
var page = NavigationStackState[i];
try
{
page.Parent = null;
await MainPage.Navigation.PushAsync(page, false);
}
catch (Exception err)
{
}
}
}
}
var AccessesResult = await App.DB.FetchUserAccessesAsync();
CheckForPersonnelWorkingTime();
StaticMainPage = MainPage;
await Task.Delay(500);
OrderPreviewFontSize = new SettingField <int>("OrderPreviewFontSize", (int)Math.Round(Math.Min(StaticMainPage.Width, StaticMainPage.Height) * App.DeviceSizeDensity / 70));
if (QRScanner != null)
{
QRScanner.OnScanResult = new Action <QRScanResult>((result) =>
{
//TODO
});
}
}
