public async Task GoBack()
{
if (CanGoBack)
{
await NavigationInstance.PopAsync(animated : true);
}
onCanGoBackChanged();
}
public Task RemoveLastView()
{
if (NavigationInstance.NavigationStack.Any())
{
var lastView = NavigationInstance.NavigationStack.Last();
NavigationInstance.RemovePage(lastView);
}
return(Task.FromResult(0));
}
public Task ClearBackStack()
{
if (NavigationInstance.NavigationStack.Count <= 1)
{
return(Task.FromResult(0));
}
for (var i = 0; i < NavigationInstance.NavigationStack.Count - 1; i++)
{
NavigationInstance.RemovePage(NavigationInstance.NavigationStack[i]);
}
return(Task.FromResult(0));
}
private async Task navigateToView(Type viewModelType)
{
Type viewType;
if (!_map.TryGetValue(viewModelType, out viewType))
{
throw new ArgumentException($"No view found in View Mapping for '{nameof(viewModelType)}'");
}
var constructor = viewType.GetTypeInfo().DeclaredConstructors.FirstOrDefault(dc => dc.GetParameters().Count() <= 0);
var view = constructor.Invoke(null) as Page;
var vm = ((App)Application.Current).Kernel.GetService(viewModelType);
view.BindingContext = vm;
await NavigationInstance.PushAsync(view, animated : true);
}
