你如何从一个byte []或从MemoryStream到WP7中的System.Windows.Controls.Image？

Question

我需要发出一个GET请求，要求oauth，for和image在页面中显示。有没有办法在不构建自定义webrequest或httpwebrequest的情况下执行此操作？

Answer 1

如果是图像，请确保您正在将流读取为二进制数据。

类似的东西：

var httpRequest = (HttpWebRequest)ar.AsyncState;
var httpResponse = (HttpWebResponse)httpRequest.EndGetResponse(ar);

int lengthInBytes = Convert.ToInt32(httpResponse.ContentLength);
BinaryReader br = new BinaryReader(httpResponse.GetResponseStream());
byte[] imageInBytes = new byte[lengthInBytes]; 
using (br)
{
    for (int i = 0; i < lengthInBytes; i++)
    {
        imageInBytes[i] = br.ReadByte();
    }
}

DispatcherHelper.CheckBeginInvokeOnUI(() =>
{
    MemoryStream rawBytesStream = new MemoryStream(imageInBytes);
    BitmapImage img = new BitmapImage();

    img.SetSource(rawBytesStream);
    imageInUI.Source = img;
});