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