如何顺利导航到不同的全景项目

Question

在全景应用程序中，我添加了一些情况，其中用户被导航回某个全景项目。然而，这是在一个突然的动作中完成的。有没有一种方法可以让我更顺利地完成这个动作，并进行某种形式的过渡？或者类似的东西？

Answer 1

此代码适用于我的

SlideTransition slideTransition = new SlideTransition();
slideTransition.Mode = SlideTransitionMode.SlideRightFadeIn;
ITransition transition = slideTransition.GetTransition(panorama_main);
transition.Completed += delegate
{
    transition.Stop();
};
PanoramaItem pItem = (PanoramaItem)panorama_main.Items[3];
panorama_main.DefaultItem = pItem; 
transition.Begin();

Answer 2

根据Inder Kumar Rathore在本页中的回答，我来做这件事：

    #region navigation
    public enum MainPanoramaItem
    {
        None = -1, Mag, Scan, Account, Lists, More, Help, MainPanoramaItemCount
    }
    public void PanoramaNavigateTo(MainPanoramaItemitem)
    {
        int count = (int)MainPanoramaItem.MainPanoramaItemCount;
        int toPosition = (int)item;
        int nowPosition = panorama.SelectedIndex;
        bool left = false;
        if(nowPosition > toPosition){
            int rightDelta = count - nowPosition + toPosition;
            int leftDelta = nowPosition - toPosition;
            left = rightDelta > leftDelta;
        } else {
            int leftDelta = count - nowPosition + toPosition;
            int rightDelta = nowPosition - toPosition;
            left = rightDelta > leftDelta;
        }
        SlideTransition slideTransition = new SlideTransition();
        slideTransition.Mode = left ? SlideTransitionMode.SlideLeftFadeOut : SlideTransitionMode.SlideRightFadeOut;
        ITransition transition = slideTransition.GetTransition(panorama);
        transition.Completed += delegate
        {
            transition.Stop();
            SlideTransition slideTransitionIn = new SlideTransition();
            slideTransitionIn.Mode = left ? SlideTransitionMode.SlideLeftFadeIn : SlideTransitionMode.SlideRightFadeIn;
            ITransition transitionIn = slideTransitionIn.GetTransition(panorama);
            transitionIn.Completed += delegate { transitionIn.Stop(); };
            panorama.SetValue(Panorama.SelectedItemProperty, panorama.Items[(int)item]);
            Panorama temp = panorama;
            LayoutRoot.Children.Remove(panorama);
            LayoutRoot.Children.Add(temp);
            LayoutRoot.UpdateLayout();
            transitionIn.Begin();
        };
        transition.Begin();
    }
    protected override void OnBackKeyPress(CancelEventArgs e)
    {
        if (panorama.DefaultItem != panorama.Items[(int)PanoramaItem.Mag])
        {
            PanoramaNavigateTo(PanoramaItem.Mag);
            e.Cancel = true;
        }
    }
    #endregion

在MainPage.xaml.cs中它使用淡出，然后淡入，并将全景的标题保持在原来的位置。我还不确定它对实际应用程序的反应，因为我的应用程序是空的。