/// <summary>
/// Restore the navigation stack
/// </summary>
public async Task <bool> LoadAsync()
{
if (NavigationFrame == null)
{
throw new InvalidOperationException("Must set root Frame prior to calling PageNavigator.LoadAsync");
}
if (StateManager != null)
{
bool loaded = await StateManager.LoadAsync();
if (loaded)
{
string frameKey = string.IsNullOrEmpty(_frameKey) ? DefaultFrameKey : _frameKey;
var frameDictionary = StateManager.GetDictionary(frameKey, false);
if (frameDictionary != null)
{
if (frameDictionary.ContainsKey(NavigationStackKey))
{
NavigationFrame.SetNavigationState((string)frameDictionary[NavigationStackKey]);
ProcessRestore();
return(true);
}
}
}
}
return(false);
}
/// <summary>
/// Restore the navigation stack
/// </summary>
public async Task <bool> LoadAsync()
{
if (NavigationFrame == null)
{
throw new InvalidOperationException("Must set root Frame prior to calling PageNavigator.LoadAsync");
}
if (StateManager != null)
{
bool loaded = await StateManager.LoadAsync();
if (loaded)
{
string frameKey = string.IsNullOrEmpty(_frameKey) ? PageNavigator.DefaultFrameKey : _frameKey;
var frameDictionary = StateManager.GetDictionary(frameKey, false);
if (frameDictionary != null)
{
if (frameDictionary.ContainsKey(PageNavigator.NavigationStackKey))
{
// This will restore the parameter
string navData = (string)frameDictionary[PageNavigator.NavigationStackKey];
NavigationFrame.SetNavigationState(navData);
int index = navData.LastIndexOf('$');
if (index != -1)
{
ProcessRestore(navData.Substring(index));
}
return(true);
}
}
}
}
return(false);
}