/// <summary>
/// Loads the AuthUserItemsPage and changes map when user selects an item
/// </summary>
private async void LoadUserItems(object sender, EventArgs e)
{
SettingsPanel.IsVisible = false;
NavigationContainerGrid.IsVisible = true;
BasemapListView.IsVisible = false;
await _userItemsViewModel.LoadUserItems();
UserItemListView.IsVisible = true;
}
/// <summary>
/// Loads the AuthUserItemsPage and changes map when user selects an item
/// </summary>
private async void LoadUserItems(object sender, EventArgs e)
{
_userItemsViewModel = new UserItemsViewModel();
await _userItemsViewModel.LoadUserItems();
// Change map when user selects a new user item
_userItemsViewModel.PropertyChanged += async(s, ea) =>
{
switch (ea.PropertyName)
{
case nameof(UserItemsViewModel.SelectedUserItem):
{
// Set the viewpoint of the new map to be the same as the old map
// Otherwise map is being reset to the world view
var mapViewModel = Resources["MapViewModel"] as MapViewModel;
var currentViewpoint = MapView.GetCurrentViewpoint(ViewpointType.CenterAndScale);
try
{
var newMap = new Map(_userItemsViewModel.SelectedUserItem)
{
InitialViewpoint = currentViewpoint
};
//Load new map
await newMap.LoadAsync();
mapViewModel.Map = newMap;
}
catch (Exception ex)
{
mapViewModel.ErrorMessage = "Unable to change maps";
mapViewModel.StackTrace = ex.ToString();
}
break;
}
}
};
SettingsPanel.IsVisible = false;
// Load the AuthUserItemsPage
await Navigation.PushAsync(new AuthUserItemsPage { BindingContext = _userItemsViewModel });
}