Cant't hide a window when window size maximized in pyqt

Question

i have two windows,i want to hide it after three seconds by using Qt timer,but its overlapping...its probably occurs when window size sets to \"showMaximized\"

Answer 1

You do not observe that w1 is closed because w2 is above w1, but if it is working, so you point out in the comments I understand that you want initially only visible w1 and after 3 seconds w2 is displayed and w1 is hidden, considering that the solution is the following:

if __name__ == "__main__":
    import sys
    app = QtGui.QApplication(sys.argv)
    w1=Dialog()
    w2=Dialog1()
    w2.hide()
    QtCore.QTimer.singleShot(3000, w1.hide)
    QtCore.QTimer.singleShot(3000, w2.showMaximized)
    sys.exit(app.exec_())