Tizen Forums

Hi there,

not sure why this does not work, but I have just done something similar but differently and it works, this is the setup method to get start the transaction

SomeClass::Setup(void) {

HttpSession* pSession = null;
HttpTransaction* pTransaction = null;
HttpRequest* pRequest = null;
HttpHeader* pHeader = null;

// Creates an HTTP session.
pSession = new HttpSession();
r = pSession->Construct(NET_HTTP_SESSION_MODE_NORMAL, null, hostAddr,
	null);
if (r != E_SUCCESS) {
	AppLogException("Error constructing http session", GetErrorMessage(r));
		return r;
}

pTransaction = pSession->OpenTransactionN();
r = pTransaction->AddHttpTransactionListener(*this);

pRequest = pTransaction->GetRequest();
pRequest->SetMethod(NET_HTTP_METHOD_GET);

r = pRequest->SetUri(mapUri);
if (r != E_SUCCESS) {
	AppLogException(
		"Error setting URI", GetErrorMessage(r));
	return r;
}

pHeader = pRequest->GetHeader();
r = pHeader->AddField("Accept", "image/jpeg");
if (r != E_SUCCESS) {
	AppLogException("Error adding field to header ", GetErrorMessage(r));
			return r;
}

r = pTransaction->Submit();
if (r != E_SUCCESS) {
	AppLogException(
		"Error submitting http transaction", GetErrorMessage(r));
	return r;
}}

And here is the callback method from the IHttpTransactionEventListener interface

void SomeClass::OnTransactionCompleted(
    	Tizen::Net::Http::HttpSession& httpSession,
		Tizen::Net::Http::HttpTransaction& httpTransaction) {
	
result r = E_SUCCESS;
HttpResponse* pHttpResponse = null;

pHttpResponse = httpTransaction.GetResponse();

if (pHttpResponse->GetHttpStatusCode() == HTTP_STATUS_OK) {
	ImageBuffer* pBuffer = pHttpResponse->ReadBodyN();
AppLog(
	"Successfully got image buffer with size %d", __pMapBuffer->GetLimit());
}

delete &httpTransaction;
delete &httpSession;

//... do stuff with the image buffer

return r;
}

Make sure you don't forget to delete the session and stuff, 10 is max and you run out pretty quick if you want to do it for more reqs.  If you figure it out your way let me know because it is much less code.

-Jirka

I think I know where your problem is,

Remarks:

• If the operation succeeds then r is E_SUCCESS, otherwise r is an error code.
• The Image object must not be deleted in this event listener.
• This method passes an auto-scaled bitmap,
  so the dimension can be different from the requested dimension if the passed bitmap is locked.

which means that you have to declare the image as a field of the class, the way you have it now image is lost as you leave the function because it is declared there and thus is no longer available when the callback function is called.

-Jirka