PySide2(5.6.0~a1) Qt UI file loader returns an empty window whereare PyQt5 loader works fine. Could you explained to me where I am wrong.
Non Working PySide2 version:
import sys
from PySide2.QtWidgets import QDialog, QApplication
from PySide2 import QtUiTools
class AppWindow(QDialog):
def __init__(self):
super().__init__()
self.ui = QtUiTools.QUiLoader().load("dialog1.ui")
self.show()
app = QApplication(sys.argv)
w = AppWindow()
sys.exit(app.exec_())
Working PyQt5 version:
import sys
from PyQt5.QtWidgets import QDialog, QApplication
from PyQt5 import uic
class AppWindow(QDialog):
def __init__(self):
super().__init__()
self.ui = uic.loadUi("dialog1.ui", self)
self.show()
app = QApplication(sys.argv)
w = AppWindow()
sys.exit(app.exec_())
Using this function also does not work :
def loadUiWidget(uifilename, parent=None):
loader = QtUiTools.QUiLoader()
uifile = QtCore.QFile(uifilename)
uifile.open(QtCore.QFile.ReadOnly)
ui = loader.load(uifile, parent)
uifile.close()
return ui
In PySide2 there's no function to QMainWindow class overwrite itself. It's necessary to show the ui:
import sys
from PySide2.QtWidgets import QDialog, QApplication
from PySide2 import QtUiTools
class AppWindow(QDialog):
def __init__(self):
super().__init__()
self.ui = QtUiTools.QUiLoader().load("dialog1.ui")
self.ui.show()
app = QApplication(sys.argv)
w = AppWindow()
sys.exit(app.exec_())
QUiLoader().load()
returns the widget as an object so if you assign it to a variable it will not do anything, you should use show()
:
import sys
from PySide2.QtWidgets import QApplication
from PySide2 import QtUiTools
app = QApplication(sys.argv)
w = QtUiTools.QUiLoader().load("dialog1.ui")
w.show()
sys.exit(app.exec_())
If you want to load QMainWindow
from designer *.ui
file you can use
import sys
from PySide2.QtWidgets import QApplication, QMainWindow
from PySide2.QtUiTools import QUiLoader
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.setCentralWidget(QUiLoader().load("form.ui"))
but slot-signal bindings, which are set in the designer in *.ui
file, are not working anyway .
So, for full-function use of designer GUI and slot-signal bindings, the only way I found is
pyside2-uic mainwindow.ui > ui_mainwindow.py
then
import sys
from PySide2.QtWidgets import QApplication, QMainWindow
from ui_mainwindow import Ui_MainWindow
class MainWindow(QMainWindow, Ui_MainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.setupUi(self)
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