Getting the size of a QGraphicsView

Question

I want to know the size of a certain QGraphicsView. Its size isn\'t fixed because the widget is part of a grid layout. I tried using this->ui->myGra

Answer 1

I have the same problem with you. QGraphicsView.size() is always return (100,30). I have solved this problem in my project.

Check below code is like this

...in a QTabWidget class...
def addANewTab(self):
  view = QGraphicsView()
  ...set view param...
  index = self.addTab(view, 'test')
  view.size() # it will return (100,30)
  self.setCurrentIndex(index)
  view.size() # it will return correct size

so like Bigbell Mercy answered , you show make sure QGraphicsView is show!