加载页面后逐页加载图像

问题描述

大家好，

我正在创建一个包含很多页面的应用程序.每页上都有一张图像.将图像加载到事件受保护的覆盖无效void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)"中.

I'm creating an app with a lot of pages. On every page there's one image. The image is loaded in the event "protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)" .

当我在两页之间导航时，由于图像正在加载，屏幕会变黑一秒钟.

When I navigate between two pages the screen turns black for a second because the image is loading.

我想知道应该使用线程还是异步事件?

I'm wondering if I should use a thread or an async event?

这是我加载图像的方式.

This is the the way I load the image.

 protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
IsolatedStorageFile file = IsolatedStorageFile.GetUserStoreForApplication();
                IsolatedStorageFileStream stream = new IsolatedStorageFileStream("AppData\\" + url, FileMode.Open, file);
                image.Source =  _image.SetSource(stream);
                stream.Close();
}

有没有一种方法可以首先快速加载没有图像的页面.准备好图像后，应该可以平滑地看到它.

Is there a way to first load the page fast without the image. When the image is ready it should be smoothly be visible.

谢谢大家.

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