Metro各种流转换

Ibuffer转byte[] 



byte[] bytes=WindowsRuntimeBufferExtensions.ToArray(buffer,0,(int)buffer.Length); 



Byte[]转Ibuffer 



WindowsRuntimeBufferExtensions.AsBuffer(bytes,0,bytes.Length); 

IRandomAccessStream转 Stream

Stream stream=WindowsRuntimeStreamExtensions.AsStreamForRead(randomStream.GetInputStreamAt(0));

Ibuffer转Stream

Stream stream = WindowsRuntimeBufferExtensions.AsStream(buffer);


Byte 转 Stream

Stream stream = new MemoryStream(bytes);


IRandomAccessStream 转 FileInputStream

FileInputStream inputStream=randomStream.GetInputStreamAt(0) as FileInputStream;


IRandomAccessStream 转 FileOutputStream

FileOutputStream outStream= randomStream.GetOutputStreamAt(0) as FileOutputStream;

参考： http://www.cnblogs.com/jing870812/archive/2012/04/12/2444870.html