/// <summary>
/// Initialize the viewmodel
/// </summary>
/// <param name="navActionType">Navigation action used to arrive to the MainPage</param>
public void Initialize(NavigationActionType navActionType = NavigationActionType.Default)
{
// Set the navigation action used to arrive to the MainPage
this.NavActionType = navActionType;
// Set the default menu item to home/first item
this.SelectedItem = this.MenuItems.FirstOrDefault();
}
/// <summary>
/// Create a NavigationObject
/// </summary>
/// <param name="sourceViewModel">Type of viewmodel that initiaties the navigation</param>
/// <param name="action">Type of navigation action</param>
/// <param name="parameters">Navigation parameters</param>
/// <returns>Navigation object</returns>
public static NavigationObject Create(Type sourceViewModel,
NavigationActionType action = NavigationActionType.Default,
IDictionary <NavigationParamType, object> parameters = null)
{
return(new NavigationObject
{
SourceViewModel = sourceViewModel,
Action = action,
Parameters = parameters == null
? new Dictionary <NavigationParamType, object>()
: new Dictionary <NavigationParamType, object>(parameters)
});
}
/// <summary>
/// Navigate to page that holds the specified viewmodel type
/// </summary>
/// <param name="viewModelType">Type of viewmodel to navigate to</param>
/// <param name="action">Optional navigation action parameter</param>
/// <param name="parameters">Optional navigation data parameters</param>
public void NavigateTo(Type viewModelType,
NavigationActionType action = NavigationActionType.Default,
IDictionary <NavigationParamType, object> parameters = null)
{
if (viewModelType == null)
{
throw new ArgumentNullException(nameof(viewModelType));
}
var pageType = NavigateService.GetViewType(viewModelType);
if (pageType == null)
{
throw new ArgumentException("Viewmodel is not bound to a view");
}
var navObj = NavigationObject.Create(this.GetType(), action, parameters);
OnUiThread(() => this.Navigation.Navigate(pageType, false, navObj));
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
// Do not allow user to go back to any previous page
NavigateService.CoreFrame.BackStack.Clear();
AppService.SetAppViewBackButtonVisibility(false);
// If exists a navigation object
if (e?.Parameter != null)
{
var navObj = NavigateService.GetNavigationObject(e.Parameter);
NavigationActionType navActionType = navObj.Action;
// Try to avoid display duplicate alerts
if (isAlertAlreadyDisplayed)
{
return;
}
isAlertAlreadyDisplayed = true;
switch (navActionType)
{
case NavigationActionType.Login:
this.ViewModel.LoginViewModel.Email = navObj.Parameters[NavigationParamType.Email] as string;
await DialogService.ShowAlertAsync(
ResourceService.AppMessages.GetString("AM_AlreadyConfirmedAccount_Title"),
ResourceService.AppMessages.GetString("AM_AlreadyConfirmedAccount"));
break;
case NavigationActionType.Recovery:
this.ViewModel.LoginViewModel.Email = navObj.Parameters[NavigationParamType.Email] as string;
this.ViewModel.LoginViewModel.Password = navObj.Parameters[NavigationParamType.Password] as string;
break;
case NavigationActionType.API_ESID:
// Show a message notifying the error
await DialogService.ShowAlertAsync(
ResourceService.AppMessages.GetString("AM_SessionIDError_Title"),
ResourceService.AppMessages.GetString("AM_SessionIDError"));
break;
case NavigationActionType.API_EBLOCKED:
string message;
switch ((AccountBlockedReason)navObj.Parameters[NavigationParamType.Number])
{
case AccountBlockedReason.Copyright:
message = ResourceService.AppMessages.GetString("AM_AccountBlockedCopyright");
break;
case AccountBlockedReason.OtherReason:
default:
message = ResourceService.AppMessages.GetString("AM_AccountBlocked");
break;
}
// Show a message notifying the error
await DialogService.ShowAlertAsync(
ResourceService.AppMessages.GetString("AM_AccountBlocked_Title"), message);
break;
}
isAlertAlreadyDisplayed = false;
}
if (DebugService.DebugSettings.IsDebugMode && DebugService.DebugSettings.ShowDebugAlert)
{
DialogService.ShowDebugModeAlert();
}
}