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PyQt5 QSpinBox – Getting next widget in focus chain

  • Last Updated : 28 May, 2020

In this article we will see how we can get the next in focus chain widget of the spin box. Spin box consist of two child widgets one is line edit and other one is the arrow buttons. Focus is set widget by widget i.e focus chain there fore when spin box get focus its one child get focus before the another child.

In order to do this we use nextInFocusChain method with the spin box object.

Syntax : spin_box.nextInFocusChain()

Argument : It takes no argument

Return : It returns QWidget object



Below is the implementation




# importing libraries
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import sys
  
  
class Window(QMainWindow):
  
    def __init__(self):
        super().__init__()
  
        # setting title
        self.setWindowTitle("Python ")
  
        # setting geometry
        self.setGeometry(100, 100, 600, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
        # method for widgets
    def UiComponents(self):
        # creating spin box
        self.spin = QSpinBox(self)
  
        # setting geometry to spin box
        self.spin.setGeometry(100, 100, 250, 40)
  
        # setting range to the spin box
        self.spin.setRange(1, 999999)
  
        # setting prefix to spin
        self.spin.setPrefix("PREFIX ")
  
        # setting suffix to spin
        self.spin.setSuffix(" SUFFIX")
  
        # creating a label
        label = QLabel(self)
  
        # making the label multi line
        label.setWordWrap(True)
  
        # setting geometry to the label
        label.setGeometry(100, 200, 200, 60)
  
        # getting next in focus chain widget
        value = self.spin.nextInFocusChain()
  
        # setting text to the label
        label.setText("Next widget in focus chain  : " + str(value))
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

Output :

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