今天在Stream与IrandomAccessStream之间转换时，感觉很纠结，所以干脆先把想到的一些场景都罗列了一下，希望下次再用的时候就不用这么毛手毛脚的了。。。
Stream 转IRandomAccessStream
方法一：
byte
[] bytes = StreamToBytes(stream);
InMemoryRandomAccessStream memoryStream =
new
InMemoryRandomAccessStream();
DataWriter datawriter =
new
DataWriter(memoryStream.GetOutputStreamAt(0));
datawriter.WriteBytes(bytes);
await datawriter.StoreAsync();
|
方法二：
var randomAccessStream =
new
InMemoryRandomAccessStream();
var outputStream = randomAccessStream.GetOutputStreamAt(0);
await RandomAccessStream.CopyAsync(stream.AsInputStream(), outputStream);
|
IRandomAccessStream 转 Stream
Stream stream=WindowsRuntimeStreamExtensions.AsStreamForRead(randomStream.GetInputStreamAt(0));
|
Ibuffer转Stream
Stream stream = WindowsRuntimeBufferExtensions.AsStream(buffer);
|
Stream转Ibuffer
MemoryStream memoryStream =
new
MemoryStream();
if
(stream !=
null
)
{
byte
[] bytes = ReadFully(stream);
if
(bytes !=
null
)
{
var binaryWriter =
new
BinaryWriter(memoryStream);
binaryWriter.Write(bytes);
}
}
IBuffer buffer=WindowsRuntimeBufferExtensions.GetWindowsRuntimeBuffer(memoryStream,0,(
int
)memoryStream.Length);
|
Ibuffer转byte[]
byte
[] bytes=WindowsRuntimeBufferExtensions.ToArray(buffer,0,(
int
)buffer.Length);
|
Byte[]转Ibuffer
WindowsRuntimeBufferExtensions.AsBuffer(bytes,0,bytes.Length);
|
Ibuffer转IrandomAccessStream
InMemoryRandomAccessStream inStream =
new
InMemoryRandomAccessStream();
DataWriter datawriter =
new
DataWriter(inStream.GetOutputStreamAt(0));
datawriter.WriteBuffer(buffer,0,buffer.Length);
await datawriter.StoreAsync();
|
IrandomAccessStream转Ibuffer
Stream stream=WindowsRuntimeStreamExtensions.AsStreamForRead(randomStream.GetInputStreamAt(0));
MemoryStream memoryStream =
new
MemoryStream();
if
(stream !=
null
)
{
byte
[] bytes = ReadFully(stream);
if
(bytes !=
null
)
{
var binaryWriter =
new
BinaryWriter(memoryStream);
binaryWriter.Write(bytes);
}
}
IBuffer buffer=WindowsRuntimeBufferExtensions.GetWindowsRuntimeBuffer(memoryStream,0,(
int
)memoryStream.Length);
|
IRandomAccessStream转FileInputStream
FileInputStream inputStream=randomStream.GetInputStreamAt(0)
as
FileInputStream;
|
IRandomAccessStream转FileOutputStream
FileOutputStream outStream= randomStream.GetOutputStreamAt(0)
as
FileOutputStream;
|
Stream转byte[]
public static byte[] ConvertStreamTobyte(Stream input)
{
byte[] buffer = new byte[16 * 1024];
using (MemoryStream ms = new MemoryStream())
{
int read;
while ((read = input.Read(buffer, 0, buffer.Length)) > 0)
{
ms.Write(buffer, 0, read);
}
return ms.ToArray();
}
}
Byte转Stream
public
Stream BytesToStream(
byte
[] bytes)
{
Stream stream =
new
MemoryStream(bytes);
return
stream;
}
|
Stream转MemoryStream
public
static
MemoryStream ConvertStreamToMemoryStream(Stream stream)
{
MemoryStream memoryStream =
new
MemoryStream();
if
(stream !=
null
)
{
byte
[] buffer = ReadFully(stream);
if
(buffer !=
null
)
{
var binaryWriter =
new
BinaryWriter(memoryStream);
binaryWriter.Write(buffer);
}
}
return
memoryStream;
}
|
应该还有些其它的场景,目前就想到这些,绕晕了都,恩恩…
Trackback:
http://www.cnblogs.com/jing870812/archive/2012/04/12/2444870.html
转载于:https://www.cnblogs.com/hdjjun/archive/2012/07/03/2574954.html