windows phone开发中图片和二进制相互转换

引用using System.Windows.Media.Imaging;

using System;

using System.Net;

using System.IO;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Ink;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Media.Animation;

using System.Windows.Shapes;



namespace Commons

{

    /// <summary>

    /// 类型转换集合

    /// </summary>

    public class TypeConverter

    {

        /// <summary>

        /// 把图片转化成二进制

        /// </summary>

        /// <param name="sourceImage"></param>

        /// <returns></returns>

        public static byte[] ImageToByteArray(Image sourceImage)

        {

            BitmapSource bs = sourceImage.Source as BitmapSource;

            using (MemoryStream ms = new MemoryStream())

            {

                System.Windows.Media.Imaging.WriteableBitmap writeableBitmap = new WriteableBitmap(bs);

                System.Windows.Media.Imaging.Extensions.SaveJpeg(writeableBitmap, ms, bs.PixelWidth, bs.PixelHeight, 0, 100);

                return ms.GetBuffer();

            }

        }



        /// <summary>

        /// 把二进制转化为Image图片

        /// </summary>

        /// <param name="bits"></param>

        /// <returns></returns>

        public static Image ByteArrayToImage(byte[] bits)

        {

            BitmapImage bitmapImage = new BitmapImage();

            using (MemoryStream ms = new MemoryStream(bits))

            {

                bitmapImage.CreateOptions = BitmapCreateOptions.DelayCreation;

                bitmapImage.SetSource(ms);

                Image image = new Image();

                image.Source = bitmapImage;

                return image;

            }

        }

    }

}