我制作了一個大型應用程序，在主應用程序（主循環）中導入了大量對話框。這些對話框導入時間很長，所以我做了一個啟動畫面，但主循環中的啟動畫面當然被長時間導入阻止了。認為我沒有得到的是我不能在主循環中移動導入，因為我從創建 ui 的類中得到一個錯誤，當代碼從解釋器檢查時運行。這里是示例代碼：from PyQt5 import QtCore, QtGui, QtWidgets, QtPrintSupportfrom PyQt5.QtWidgets import QDialog,QWidget,QApplication, QInputDialog, QLineEdit, QFileDialog,QProgressDialog, QMainWindow, QFrame,QSplashScreenfrom PyQt5.QtCore import QThread , pyqtSignal,Qtfrom PyQt5.QtGui import QIcon,QPainter,QPixmap#here the slow import dialogsfrom ui import Ui_MainWindow,HoverButtonfrom dialog1 import Ui_Dialogfrom dialog2 import Ui_Dialog2from dialog3 import Ui_dialog3from dialog4 import Ui_Dialog4from dialog5 import Ui_dialog5from dialog6 import Ui_dialog6#....... and so on###after class methods###class Dialog1(QtWidgets.QDialog,Ui_Dialog): #fuel button prompt dialog for inputs def __init__(self,parent=None): super(Dialog1, self).__init__(parent) self.setupUi(self)class Dialog2(QtWidgets.QDialog,Ui_Dialog2): #all errors dialog def __init__(self,parent=None): super(Dialog2, self).__init__(parent) self.setupUi(self)class Dialog3(QtWidgets.QDialog,Ui_dialog3): #that might take a while dialog def __init__(self,parent=None): super(Dialog3, self).__init__(parent) self.setupUi(self)class Dialog4(QtWidgets.QDialog,Ui_Dialog4): #input gross weight dialog def __init__(self,parent=None): super(Dialog4, self).__init__(parent) self.setupUi(self)class Dialog5(QtWidgets.QDialog,Ui_dialog5): #map viewer specifications dialog def __init__(self,parent=None): super(Dialog5, self).__init__(parent) self.setupUi(self)
1 回答
楊__羊羊
TA貢獻1943條經驗 獲得超7個贊
假設唯一的問題是大量對話，而不是每個對話本身都有一個消耗大量時間的任務，因此可能的選擇是每 T ms 加載每個對話，以便在過渡時間內 QSplashScreen 正常工作。
# ...
###MAIN GUI###
class mainProgram(QtWidgets.QMainWindow, Ui_MainWindow):
loadFinished = QtCore.pyqtSignal()
def __init__(self, parent=None):
super(mainProgram, self).__init__(parent)
self.setupUi(self)
self.setWindowFlags(QtCore.Qt.FramelessWindowHint)
self._T_dialogs = iter(
enumerate((Dialog1, Dialog2, Dialog3, Dialog4, Dialog5, Dialog6))
)
self._timer = QtCore.QTimer(self, timeout=self.create_dialogs, interval=100)
self._timer.start()
@QtCore.pyqtSlot()
def create_dialogs(self):
try:
i, T = next(self._T_dialogs)
w = T(self)
setattr(self, "dialog{}".format(i), w)
except StopIteration:
self._timer.stop()
self.showMaximized()
self.loadFinished.emit()
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
splash_pix = QtGui.QPixmap("loading.jpg")
splash_pix.scaled(200, 400, QtCore.Qt.KeepAspectRatio)
splash = QtWidgets.QSplashScreen(splash_pix, QtCore.Qt.WindowStaysOnTopHint)
splash.setMask(splash_pix.mask())
splash.show()
nextGui = mainProgram()
nextGui.loadFinished.connect(splash.close)
sys.exit(app.exec_())
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