我有一个使用PyQt5的简单Python应用程序,它将执行更新。
目前,当我添加两个pixmap和一个lineEdit时,我被困在__init__
中,我想在计算期间更新它们的文本。你知道吗
每当我使用main_window.change()
时,直到change()完成,GUI才会显示出来。你知道吗
图片没有显示。你知道吗
如果没有改变方法,它会显示图片
无需更改方法GUI即可正确显示
如果我将QMessageBox添加到for循环中,消息当然会显示出来,但是更新的GUI也会显示出来。你知道吗
消息框将更新GUI
添加self.update()
没有帮助。你知道吗
class AcselStarter(QtWidgets.QMainWindow, Ui_ACSEL_Starter):
def __init__(self, parent=None):
super(AcselStarter, self).__init__(parent)
Ui_ACSEL_Starter.__init__(self)
self.setupUi(self)
pixmapAcsel = QPixmap('../fig/ACSEL.png')
self.labelAcsel.setPixmap(pixmapAcsel)
pixmapMubea = QPixmap('../fig/CAELogo_height60.png')
self.labelMubea.setPixmap(pixmapMubea)
self.lineEditProgress.setText(str(0.001))
def change(self):
for i in range(0, 100, 10):
self.lineEditProgress.setText(str(i))
# QtWidgets.QMessageBox.information(self, PROGRAMM_NAME, 'Replot', QtWidgets.QMessageBox.Ok)
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
main_window = AcselStarter()
main_window.show()
time.sleep(5)
main_window.change()
sys.exit(app.exec_())
为完整起见,以下是我的Qt Designer UI文件:
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'UI_acsel_starter.ui'
#
# Created by: PyQt5 UI code generator 5.9.2
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_ACSEL_Starter(object):
def setupUi(self, ACSEL_Starter):
ACSEL_Starter.setObjectName("ACSEL_Starter")
ACSEL_Starter.resize(320, 180)
self.centralwidget = QtWidgets.QWidget(ACSEL_Starter)
self.centralwidget.setObjectName("centralwidget")
self.gridLayout = QtWidgets.QGridLayout(self.centralwidget)
self.gridLayout.setObjectName("gridLayout")
self.widgetPics = QtWidgets.QWidget(self.centralwidget)
self.widgetPics.setObjectName("widgetPics")
self.horizontalLayout_2 = QtWidgets.QHBoxLayout(self.widgetPics)
self.horizontalLayout_2.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout_2.setObjectName("horizontalLayout_2")
self.labelAcsel = QtWidgets.QLabel(self.widgetPics)
self.labelAcsel.setText("")
self.labelAcsel.setObjectName("labelAcsel")
self.horizontalLayout_2.addWidget(self.labelAcsel)
self.labelMubea = QtWidgets.QLabel(self.widgetPics)
self.labelMubea.setText("")
self.labelMubea.setObjectName("labelMubea")
self.horizontalLayout_2.addWidget(self.labelMubea)
self.gridLayout.addWidget(self.widgetPics, 0, 0, 1, 1)
self.widgetProgress = QtWidgets.QWidget(self.centralwidget)
self.widgetProgress.setMaximumSize(QtCore.QSize(16777215, 30))
self.widgetProgress.setObjectName("widgetProgress")
self.horizontalLayout = QtWidgets.QHBoxLayout(self.widgetProgress)
self.horizontalLayout.setSizeConstraint(QtWidgets.QLayout.SetFixedSize)
self.horizontalLayout.setContentsMargins(0, 9, 0, 0)
self.horizontalLayout.setSpacing(6)
self.horizontalLayout.setObjectName("horizontalLayout")
self.labelProgress = QtWidgets.QLabel(self.widgetProgress)
self.labelProgress.setMaximumSize(QtCore.QSize(48, 16777215))
self.labelProgress.setObjectName("labelProgress")
self.horizontalLayout.addWidget(self.labelProgress)
self.lineEditProgress = QtWidgets.QLineEdit(self.widgetProgress)
self.lineEditProgress.setMaximumSize(QtCore.QSize(50, 16777215))
self.lineEditProgress.setObjectName("lineEditProgress")
self.horizontalLayout.addWidget(self.lineEditProgress)
self.labelPercent = QtWidgets.QLabel(self.widgetProgress)
self.labelPercent.setObjectName("labelPercent")
self.horizontalLayout.addWidget(self.labelPercent)
self.gridLayout.addWidget(self.widgetProgress, 1, 0, 1, 1)
ACSEL_Starter.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(ACSEL_Starter)
self.menubar.setGeometry(QtCore.QRect(0, 0, 320, 21))
self.menubar.setObjectName("menubar")
ACSEL_Starter.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(ACSEL_Starter)
self.statusbar.setObjectName("statusbar")
ACSEL_Starter.setStatusBar(self.statusbar)
self.retranslateUi(ACSEL_Starter)
QtCore.QMetaObject.connectSlotsByName(ACSEL_Starter)
def retranslateUi(self, ACSEL_Starter):
_translate = QtCore.QCoreApplication.translate
ACSEL_Starter.setWindowTitle(_translate("ACSEL_Starter", "ACSEL_Starter"))
self.labelProgress.setText(_translate("ACSEL_Starter", "Progress"))
self.labelPercent.setText(_translate("ACSEL_Starter", "%"))
我希望每当我为lineEdit设置新文本时,GUI都会更新。你知道吗
提前感谢您的帮助!你知道吗
我自己找到了一个解决方案,用更好的进度条代替了lineEdit。 这里的解决方案是当进度条是通过代码激活而不是按钮点击。因为新线程必须手动执行。按钮单击在内部自动执行。你知道吗
输出如下,如预期/所需:
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