NetworkReply (finished Slot) with Position update Slot

[vishalrocks101]

Hi,

I have done an application in which I get Latitude and Longitude,then based on this I am checking for some condition and hitting a URL ,now the problem is I am able to Hit URL as I can see Entry on Server, but the SLOT

void LatLong::finishedslot(QNetworkReply* reply)

is not called So I am unable to get Reply.
I don't know what is the problem,can we use Position Update Slot and FinishedSlot together??

Below is the Code for PositionUpdate Slot,, interval is Kept for 10 Secs:

void LatLong::positionUpdated(const QGeoPositionInfo &info)
{
	double latitude = 0.0000;
        double longitude = 0.0000;
	
 	latitude = info.coordinate().latitude();
	longitude = info.coordinate().longitude();
	QVariant lat(latitude);
	QVariant longi(longitude);
	
	if(latitude == 0.0000)
	{
	  
		ui->lineEdit_Latitude_2->setText(lat.toString());
	}
	else
	{
		ui->lineEdit_Latitude_2->setText(lat.toString());
	}
	if(longitude == 0.0000)
	{
		ui->lineEdit_Longitude_2->setText(longi.toString());
	}
	else
	{
	   
		ui->lineEdit_Longitude_2->setText(longi.toString());
	}
		


	checkandHitUrl(double value);
		
	
	
}

Below is Code for checkandHitUrl(double valuee) :

void LatLong::checkandHitUrl(double value)
	{
	    
	if(some condition)
			  {		            
			      flag = true;		  
			  }
		  
		  else if(some condition)
			  {
			    set = true;
			    flag = false;
			  }
	
		  else
			   {
		            flag = false;
		       }
		  
		if(flag)
			{
			   set = false;
	                   QUrl url("My URL");   
			   QNetworkReply* reply = nam->get(QNetworkRequest(url));
			}
		
		else
			{
		        //Do nothing
	     	}
  
	}

Below is Code for finishedslot which is Never Called :

void LatLong::finishedslot(QNetworkReply* reply)
	{  
	  
		if (reply->error() == QNetworkReply::NoError)
	        {
	           
	              QByteArray bytearray = reply->readAll();
	              QString byte_to_string(bytearray); // string
		      QString trimstr= byte_to_string.trimmed();
				  
		      QMessageBox::information(this,"Info",trimstr);
				  
				  if(condition)
					  {
					  QMessageBox::information(this,"Info","info");
					  }
				  else
					  {
					  QMessageBox::information(this,"Info",trimstr);
					  }
				  
				  
	        }
		
		else
		        {
		             QMessageBox::information(this,"Error","Error Hitting URL.");
		        }
		   
		    reply->deleteLater();
	
	    
	   
	}

Can any one help me on this issue:

Regards,

Vishal

[vishalrocks101]

hi,

I found solution I made a silly Mistake I was Using Wrong Signal

Before (Wrong One):

connect(namanager,SIGNAL(finishedslot(QNetworkReply*)),this,SLOT(finishedslot(QNetworkReply*)));

After WriteOne:

connect(namanager,SIGNAL(finished(QNetworkReply*)),this,SLOT(finishedslot(QNetworkReply*)));


Regards,
Vishal

[divanov]

Qt always prints a debug message to the debugger on Windows or to the stderr on Linux, when you try to connect something, which do not exist. Checking this output saves dozens of working hours.

And why do you have code like this?

        double latitude = 0.0000;
	
 	latitude = info.coordinate().latitude();
	QVariant lat(latitude);
	
	if(latitude == 0.0000)
	{
	  
		ui->lineEdit_Latitude_2->setText(lat.toString());
	}
	else
	{
		ui->lineEdit_Latitude_2->setText(lat.toString());
	}

You can reduce it to

	ui->lineEdit_Latitude_2->setText(QString("%1").arg(info.coordinate().latitude()));

[danhicksbyron]

I always use an assertion to check connect() return codes:

bool ok;
ok = connect(...);
Q_ASSERT(ok);
Q_UNUSED(ok);

It saves me a lot of debugging time.

hi,

I found solution I made a silly Mistake I was Using Wrong Signal

Before (Wrong One):

connect(namanager,SIGNAL(finishedslot(QNetworkReply*)),this,SLOT(finishedslot(QNetworkReply*)));

After WriteOne:

connect(namanager,SIGNAL(finished(QNetworkReply*)),this,SLOT(finishedslot(QNetworkReply*)));


Regards,
Vishal