public async Task <bool> LoadNavigationState(string id, IFrameFacade frame)
{
// get state
var folder = ApplicationData.Current.LocalCacheFolder;
var file = await folder.TryGetItemAsync(buildKey(id)) as StorageFile;
if (file == null)
{
return(false);
}
// test date
var setting = App.Settings.SuspensionStateExpires;
var expires = DateTime.Now.Subtract(setting);
var info = await file.GetBasicPropertiesAsync();
var expired = expires <= info.DateModified;
if (expired)
{
return(false);
}
// set state
var state = await FileIO.ReadTextAsync(file);
frame.SetNavigationState(state);
return(true);
}
public async Task<bool> LoadNavigationState(string id, IFrameFacade frame)
{
// get state
var folder = ApplicationData.Current.LocalCacheFolder;
var file = await folder.TryGetItemAsync(buildKey(id)) as StorageFile;
if (file == null)
{
return false;
}
// test date
var setting = App.Settings.SuspensionStateExpires;
var expires = DateTime.Now.Subtract(setting);
var info = await file.GetBasicPropertiesAsync();
var expired = expires <= info.DateModified;
if (expired)
{
return false;
}
// set state
var state = await FileIO.ReadTextAsync(file);
frame.SetNavigationState(state);
return true;
}
private void RestoreFrameNavigationState(IFrameFacade frame)
{
var frameState = GetSessionStateForFrame(frame);
if (frameState.ContainsKey("Navigation"))
{
frame.SetNavigationState((String)frameState["Navigation"]);
}
}
private void RestoreFrameNavigationState(IFrameFacade frame)
{
var frameState = GetSessionStateForFrame(frame);
if (frameState.ContainsKey(Constants.SessionStateKeyNavigation))
{
frame.SetNavigationState((string)frameState[Constants.SessionStateKeyNavigation]);
}
}
/// <summary>
/// Clears the navigation history.
/// </summary>
public void ClearHistory()
{
_frame.SetNavigationState("1,0");
}
private void RestoreFrameNavigationState(IFrameFacade frame)
{
var frameState = GetSessionStateForFrame(frame);
if (frameState.ContainsKey("Navigation"))
{
frame.SetNavigationState((String)frameState["Navigation"]);
}
}
private void RestoreFrameNavigationState(IFrameFacade frame)
{
var frameState = GetSessionStateForFrame(frame);
if (frameState.ContainsKey(Constants.SessionStateKeyNavigation))
{
frame.SetNavigationState((string)frameState[Constants.SessionStateKeyNavigation]);
}
}
/// <summary>
/// Restore the navigation with the navigation state.
/// </summary>
/// <param name="navigationState">The navigation state</param>
public void SetNavigationState(string navigationState)
{
frameFacade.SetNavigationState(navigationState);
}