导航到另一个页面时改变方向 [英] Navigate to another page when orientation changed

问题描述

我将解释什么，我试图在下列情况下做到：

I will explain what I'm trying to do on following instance:

我有两个页面 - MainPage.xaml中（定向人像）和LandscapeLeft.xaml（方向LandscapeLeft）。

I have two pages - MainPage.xaml (orientation Portrait) and LandscapeLeft.xaml (orientation LandscapeLeft).

我想从 MainPage.xaml中导航到 LandscapeLeft.xaml 当用户旋转手机上Lanscape位置

I want to navigate from MainPage.xaml to LandscapeLeft.xaml when user rotate phone on Lanscape position.

我做了如下：

XAML：

   SupportedOrientations="PortraitOrLandscape" Orientation="Portrait"

后面的代码：

   protected override void OnOrientationChanged(OrientationChangedEventArgs e)
   {
       switch (e.Orientation)
       {
           case PageOrientation.LandscapeLeft:
               NavigationService.Navigate(new Uri("/LandscapeLeft.xaml", UriKind.RelativeOrAbsolute));
               break;
       }
       base.OnOrientationChanged(e);
   }

当我从PortraitUp旋转手机LandscapeLeft立场发生了什么：结果
首先，MainPage.xaml中的内容旋转景观就在这时，LandscapeLeft.xaml负载。

When I rotate phone from PortraitUp to LandscapeLeft position that what happens:
Firstly, content of MainPage.xaml rotates landscape and just then LandscapeLeft.xaml loads.

我想要做的是消除中的MainPage内容旋转过程的.xaml。它看起来并不好，影响性能。简单地说，当我转我想LandscapeLeft.xaml加载
没有MainPage.xaml中的内容方向的改变以往手机。

What I want to do is to eliminate process of content rotation of MainPage.xaml. It doesn't look good and affects performance. Simply, when I rotate the phone I want LandscapeLeft.xaml to be loaded without previous change of content orientation of MainPage.xaml.

请，有什么建​​议？

Please, any suggestions?

推荐答案

怎么样把你的内容在一个框架。
当取向事件触发时，改变的不是导航到不同的页面帧内容。

How about putting your contents in a frame. When orientation event fires, change the frame contents instead of navigating to a different page.

 ...
         case PageOrientation.LandscapeLeft:
         FrmContents= new LandscapeLeft();
 ...  

这应该解决你的性能问题。

This should sort out your performance issues.

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