The show() method...

[salmanmanekia]

Hi,
I have written a program in which i have implemented Graphics View Framework..the output is there and it s perfect ,but the problem is that i have written the command of show() in my class constructor while in the main where i have instantiate the object of that class ,the

show() shows an empty screen...

but i think its the common and good practice to put show() command in the main

In Conctsructor It work fine

TrainingUI::TrainingUI(QGraphicsView *parent):QGraphicsView(parent)
{
  ..
view.setScene(scene);
view.show(); // WORKS FINE HERE
..
}

TrainingUI::TrainingUI(QGraphicsView *parent):QGraphicsView(parent)
{
  ..
view.setScene(scene);
view.show(); // WORKS FINE HERE
..
}

To copy to clipboard, switch view to plain text mode 

But in Main it shows an empty screen

#include "trainingui.h"
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    TrainingUI w;
    w.show(); // EMPTY SCREEN
    return a.exec();
 
}

#include "trainingui.h"
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    TrainingUI w;
    w.show(); // EMPTY SCREEN
    return a.exec();

}

To copy to clipboard, switch view to plain text mode