我检查了以下Java资源,以获取C#的Xamarin Android的WebView的状态代码。如Xamarin文档,Webresourceresponse(String,String,Stream(流API是类型 System.io.Strom.Stream 。我需要将 java.io.inputStream 转换为 system.io.stream 。
是否可以转换这些类型?如果不是什么,可能的解决方案是什么。我是Xamarin的新手。请帮忙。
private static string http = "https?://[\w\.\-]+(/.*)?";
Regex regex = new Regex(http);
public override WebResourceResponse ShouldInterceptRequest(WebView webView, string url)
{
if (!regex.IsMatch(http))
{
return ShouldInterceptRequest(webView, url);
}
HttpGet req= new HttpGet(url);
DefaultHttpClient client = new DefaultHttpClient();
String mimetype = null, encoding = null;
byte[] data = null;
try
{
var response = client.Execute(req);
if (HttpStatus.ScOk == response.StatusLine.StatusCode)
{
var httpentity = response.Entity;
var header = httpentity.ContentType;
if (null != mimetype) mimetype = header.Value;
var encodingheader = httpentity.ContentEncoding;
if (null != encodingheader) encoding = encodingheader.Value;
data = EntityUtils.ToByteArray(httpentity);
}
}
catch (Exception e)
{
String msg = e.Message;
Log.Error(this.Class.SimpleName, (null != msg) ? msg : "");
}
finally
{
req.Abort();
client.ConnectionManager.Shutdown();
}
Java.IO.InputStream stream = new ByteArrayInputStream(data);
// this is the error i get
// cannot convert from 'Java.IO.InputStream' to 'System.IO.Stream'
// Argument type 'Java.IO.InputStream' is not assignable to parameter type 'System.IO.Stream'
return new WebResourceResponse(mimetype, encoding, stream);
}
是否可以转换这些类型?
答案是否。
在您的问题中,您可以使用MemoryStream类,它可以接受Byte[]
作为其构造中的参数。
替换
Java.IO.InputStream stream = new ByteArrayInputStream(data);
with:
MemoryStream stream = new MemoryStream(data);