将Base64字符串转换为BitmapImage C＃Windows Phone

Question

我从服务器收到一个image / jpeg; base64字符串。 如何将此字符串转换为BitmapImage并设置为Image.Source？

string imgStr = "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEAAQABAAD .... ";
BitmapImage bmp = Base64StringToBitmap(imgStr);
myImage.Source = bmp;

提前致谢！

Answer 1

我找到了解决问题的方法：

public static BitmapImage Base64StringToBitmap(string  base64String)
{
    byte[] byteBuffer = Convert.FromBase64String(base64String);
    MemoryStream memoryStream = new MemoryStream(byteBuffer);
    memoryStream.Position = 0;

    BitmapImage bitmapImage = new BitmapImage();
    bitmapImage.SetSource(memoryStream);

    memoryStream.Close();
    memoryStream = null;
    byteBuffer = null;

    return bitmapImage;
}