public static Uri BuildNavigationUri(Type navPage, NavigationParameter navParam)
{
if (navPage == null)
throw new ArgumentNullException("navPage");
var queryString = String.Format("?navparam={0}", Enum.GetName(typeof(NavigationParameter), navParam));
return new Uri(String.Format("{0}{1}.xaml{2}", AppResources.PagesLocation, navPage.Name, queryString), UriKind.Relative);
}
public void LoadParameters(NavigationParameter navigationParameter)
{
this.view.EventAggregator = navigationParameter.EventAggregator;
this.ViewModelLocator = navigationParameter.ViewModelLocator;
if (this.isGeneric)
{
this.navigationParameter = navigationParameter;
}
}
public static Uri BuildNavigationUri(Type navPage, NavigationParameter navParam, IDictionary<string, string> extraParams)
{
var resultUrl = BuildNavigationUri(navPage, navParam).ToString();
foreach (var extraParam in extraParams)
{
resultUrl += String.Format(@"&{0}={1}", extraParam.Key, extraParam.Value);
}
return new Uri(resultUrl, UriKind.Relative);
}
/// <summary>
/// Initializes <see cref="NavigationService"/> instance
/// </summary>
/// <param name="mainPageType">The type of the main application page</param>
/// <param name="parameter">Initial navigation parameter</param>
public void Initialize(Type mainPageType, NavigationParameter parameter)
{
this.mainPageType = mainPageType;
Frame frame = Window.Current.Content as Frame;
// Do not repeat app initialization when the Window already has content,
// just ensure that the window is active.
if (frame == null)
{
logger.LogMessage("NavigationService: No root frame found. Creating the new one.");
frame = new Frame
{
CacheSize = 1,
Language = ApplicationLanguages.Languages[0]
};
Window.Current.Content = frame;
logger.LogMessage("NavigationService: Root frame created successfully.");
}
if (frame.Content == null)
{
logger.LogMessage("NavigationService: Root frame is empty. Removing transitions for the first-time navigation.");
if (frame.ContentTransitions != null)
{
transitions = new TransitionCollection();
foreach (var c in frame.ContentTransitions)
{
transitions.Add(c);
}
}
frame.ContentTransitions = null;
frame.Navigated -= onRootFrameFirstNavigated;
frame.Navigated += onRootFrameFirstNavigated;
}
this.frame = frame;
if (!frame.Navigate(mainPageType, parameter))
{
string message = "Navigation service initialization error.";
logger.LogMessage(message, LoggingLevel.Critical);
throw new Exception(message);
}
logger.LogMessage("NavigationService initialized.", LoggingLevel.Information);
}
//转场检测的执行顺序为：前一个场景的退出函数->后一个场景的进入函数->转场广播
//转场指示发出后将等待[SYSTEM]WINDOW_PAGE_CHANGE，最后触发新场景的进入完成函数
protected override void Go_Implement(NavigationParameter e)
{
if (!e.PreviousScene.Scene_Exit(e.NextScene , e.ExtraData)) return;
if (!e.NextScene.Scene_Enter(e.PreviousScene, e.ExtraData)) return;
if (_sceneIndex != _scenes.Count - 1)
_scenes.RemoveRange(_sceneIndex + 1, _scenes.Count - _sceneIndex + 1);
_scenes.Add(e.NextScene);
_sceneIndex = _scenes.Count - 1;
_dispatcher.Invoke(() => _window.Navigate(e.NextScene.Content(), e.ExtraData));
Core.API.Message.Wait("[SYSTEM]WINDOW_PAGE_CHANGE");
e.NextScene.Scene_Entered(e.ExtraData);
}
private bool Navigate(Type type, object parameter, IViewModel viewModel)
{
#if WINDOWSCOMMON
if (viewModel != null)
{
if (!(parameter is NavigationParameter))
parameter = new NavigationParameter { Id = viewModel.GetViewModelId(), Parameter = parameter };
}
#endif
_lastParameter = parameter;
if (parameter == null)
return _frame.Navigate(type);
return _frame.Navigate(type, parameter);
}
/// <summary>
/// Navigates to the main application page with passing given parameter to it
/// </summary>
/// <param name="parameter">Navigation parameter to pass</param>
public void Navigate(NavigationParameter parameter)
{
if (!isInitialized)
{
logger.LogMessage($"NavigationService: Root frame hasn't initialized yet. Schedule navigation with parameter {parameter}.");
deferredNavigationHandler = (_, __) =>
{
logger.LogMessage("NavigationService: Executing deferred navigation handler.");
frame.LayoutUpdated -= deferredNavigationHandler;
Navigate(parameter);
};
return;
}
logger.LogMessage($"NavigationService: Navigating with parameter {parameter}.");
if (!frame.Navigate(mainPageType, parameter))
{
logger.LogMessage("Navigation error.", LoggingLevel.Error);
}
}
internal void LoadNavigationParameter(NavigationParameter parameter)
{
this.NavigationService = parameter.NavigationService;
this.EventAggregator = parameter.EventAggregator;
this.LoadChildsNavigationParameter(parameter);
}
private void LoadChildsNavigationParameter(NavigationParameter parameter)
{
ForEachChildViewModels(this, vm => {
var viewModel = vm as ViewModel;
if (viewModel != null)
{
viewModel.LoadNavigationParameter(parameter);
}
});
}
public static void NavigateTo(Type navPage, NavigationParameter navParam)
{
((PhoneApplicationFrame)Application.Current.RootVisual).Navigate(BuildNavigationUri(navPage, navParam));
}
public static void NavigateTo(Type navPage, NavigationParameter navParam, IDictionary<string, string> extraParams)
{
((PhoneApplicationFrame)Application.Current.RootVisual).Navigate(BuildNavigationUri(navPage, navParam, extraParams));
}
private void listView_Tapped(object sender, TappedRoutedEventArgs e)
{
var _listview = listView as ListView;
var _weibo = (Weibo)_listview.SelectedItem;
ListViewItemPresenter originalsource = e.OriginalSource as ListViewItemPresenter;
if (originalsource == null)
{
var advancesource = e.OriginalSource as TextBlock;
var imageSource = e.OriginalSource as Image;
var richtextBlock = e.OriginalSource as RichTextBlock;
if (advancesource != null)
{
if (advancesource.Text == "网页链接")
{
e.Handled = true;
}
else if (advancesource.Text.Substring(0, 1) == "#")
{
string hashtag = advancesource.Text.Substring(1);
hashtag = hashtag.Remove(hashtag.Length - 1);
//Frame.Navigate(typeof(HashTagPage), hashtag);
}
else if (advancesource.Text.Substring(0, 1) == "@")
{
string username = advancesource.Text.Substring(1);
NavigationParameter navip = new NavigationParameter(username, "screen_name");
Frame.Navigate(typeof(UserView), navip);
}
else if (_weibo.User.ScreenName != null && advancesource.Text == _weibo.User.ScreenName)
{
string username = advancesource.Text;
NavigationParameter navip = new NavigationParameter(username, "screen_name");
Frame.Navigate(typeof(UserView), navip);
}
else if(advancesource.Text == _weibo.RepostWeibo.User.ScreenName)
{
string username = advancesource.Text;
NavigationParameter navip = new NavigationParameter(username, "screen_name");
Frame.Navigate(typeof(UserView), navip);
}
else
{
Frame.Navigate(typeof(WeiboDetailView), _weibo);
}
}
else if (imageSource != null)
{
string username = _weibo.User.ScreenName;
NavigationParameter navip = new NavigationParameter(username, "screen_name");
Frame.Navigate(typeof(UserView), navip);
}
else if (richtextBlock != null)
{
Frame.Navigate(typeof(WeiboDetailView), _weibo);
}
}
else
{
Frame.Navigate(typeof(WeiboDetailView), _weibo);
}
}
