在WP7中处理双向导航？(Handling two way navigation in WP7?)

 基本上当我的应用程序加载我的第一个屏幕是MainPage.xaml，我将其视为加载屏幕。 这是为了让屏幕更新出现得更快。 从加载屏幕中，用户自动导航到另一个页面，该页面分别包含名为Content.xaml的内容。 
 
 问题是导航的第一种方式正常工作， 
 
 
 
 SpashScreenImage - > MainPage.xaml - > Content.xaml 
 
 
 但是如果用户决定点击后退按钮，他们将进入加载页面，但是随后导航回到内容页面。 
 
 
 
 MainPage.xaml < - Content.xaml 
 MainPage.xaml - > Content.xaml 
 
 
 如果我知道他们来自哪个页面，这看起来很容易解决。 有没有办法检测用户正在浏览的页面？ 这样我就可以正确处理它。 
 
 编辑：我的主要目标是获取当您导航到WP7中的全景页面时发生的动画（幻灯片效果）。 到目前为止，我能够触发此事件的唯一方法是手动导航到页面，就像我在我的问题（Content.xaml == Panorama Page）中所建议的那样，或者通过重新激活该页面上的应用程序。 

basically when my app loads my first screen is MainPage.xaml, which I'm treating as a loading screen. This is to make an update to screen appear faster. From the loading screen the user is automatically navigated to another page that contains content called Content.xaml respectively.
 
The problem is navigating the first way works fine, 
 
 
 
SpashScreenImage --> MainPage.xaml --> Content.xaml
 
 
but if the user decides to hit the back button they go to the loading page, but then that navigates them back to the content page.
 
 
 
MainPage.xaml <-- Content.xaml
 MainPage.xaml --> Content.xaml
 
 
This looks real easy to solve if I knew what page they were coming from. Is there a way to detect what page the user is navigating from? That way I could handle it properly.
 
EDIT: My main objective is to get the animation that occurs when you navigate to a Panorama page in WP7 (Slide effect). So far the only way I've been able to trigger this event is by manually navigating to the page, like I suggested in my question (Content.xaml == Panorama Page), or by reactivating the app on that page.

原文：https://stackoverflow.com/questions/5508824