我想创建一个显示（忙）的进度条，直到按钮的代码结束。我的目标是按下按钮（连接到功能）时显示它，在代码运行时保持可见，并在功能时隐藏它连接到按钮结束。此任务部分完成，但我的进度条setVisible（True）等待代码结束并显示。 我的代码在这里：
from ui import Ui_MainWindow
from PyQt5 import QtCore, QtGui, QtWidgets, QtPrintSupport
from PyQt5.QtWidgets import QDialog,QWidget,QApplication, QInputDialog, QLineEdit, QFileDialog
from PyQt5.QtGui import QIcon
class ProgressThread(QtCore.QThread):
job_done = QtCore.pyqtSignal('QString')
def __init__(self, parent=None):
super(ProgressThread, self).__init__(parent)
self.gui_bar = None
def do_work(self):
self.job_done.emit(self.gui_bar)
def run(self):
self.do_work()
class mainProgram(QtWidgets.QMainWindow, Ui_MainWindow): #main window
def __init__(self, parent=None):
super(mainProgram, self).__init__(parent)
self.setupUi(self)
self.progress_thread = ProgressThread()
self.progress_thread.job_done.connect(self.on_job_start)
self.create_ui()
self.B_aerodrome_data.clicked.connect(self.start_thread)
self.B_aerodrome_data.clicked.connect(self.aerodrome_data)
def aerodrome_data(self): #def i want with start show progress bar
#here show progressBar(self.progress.setVisible(True) and update gui)
#do many staffs of code here that takes time
#here hide progress bar and update gui
def start_thread(self):
self.progress_thread.gui_bar = self.progress.setVisible(False)
self.progress_thread.start()
def on_job_done(self):
print("Generated string : ")
self.progress.setVisible(False)
def on_job_start(self):
print("aaaaaaaaaa")
self.progress.setRange(0,0)
self.progress.setVisible(True)
def create_ui(self):
self.progress = QtWidgets.QProgressBar(self)
self.progress.setVisible(False)
self.progress.setGeometry(200, 205, 250, 20)
self.progress.setRange(0, 0)
self.progress.setObjectName("progress")
#self.button.clicked.connect(self.start_thread)
layout = QtWidgets.QVBoxLayout(self)
#layout.addWidget(self.button)
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
nextGui = mainProgram()
nextGui.showMaximized()
sys.exit(app.exec_())
Ui_Mainwindow在这里：
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(1371, 924)
MainWindow.setAcceptDrops(True)
icon = QtGui.QIcon()
icon.addPixmap(QtGui.QPixmap("images/356.ico"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
MainWindow.setWindowIcon(icon)
MainWindow.setAutoFillBackground(True)
MainWindow.setDocumentMode(True)
self.centralWidget = QtWidgets.QWidget(MainWindow)
self.centralWidget.setObjectName("centralWidget")
self.L_adinput = QtWidgets.QLabel(self.centralWidget)
self.L_adinput.setGeometry(QtCore.QRect(30, 70, 141, 31))
self.L_adinput.setObjectName("L_adinput")
# self.progress = QtWidgets.QProgressBar(self)
# self.progress.setGeometry(200, 205, 250, 20)
# self.progress.setProperty("value", 0)
# self.progress.setObjectName("progress")
self.L_progress = QtWidgets.QLabel(self.centralWidget)
self.L_progress.setGeometry(QtCore.QRect(150, 200, 141, 31))
self.L_progress.setObjectName("L_progress")
self.B_aerodrome_data = QtWidgets.QPushButton(self.centralWidget)
self.B_aerodrome_data.setGeometry(QtCore.QRect(670, 100, 271, 41))
self.B_aerodrome_data.setObjectName("B_aerodrome_data")
self.T_aerodrome_ouput = QtWidgets.QTextEdit(self.centralWidget)
self.T_aerodrome_ouput.setGeometry(QtCore.QRect(30, 230, 561, 371))
self.T_aerodrome_ouput.setReadOnly(True)
self.T_aerodrome_ouput.setObjectName("T_aerodrome_ouput")
self.B_alternates = QtWidgets.QPushButton(self.centralWidget)
self.B_alternates.setGeometry(QtCore.QRect(670, 160, 271, 41))
self.B_alternates.setObjectName("B_alternates")
self.B_weather = QtWidgets.QPushButton(self.centralWidget)
self.B_weather.setGeometry(QtCore.QRect(670, 220, 271, 41))
self.B_weather.setObjectName("B_weather")
self.B_fuel = QtWidgets.QPushButton(self.centralWidget)
self.B_fuel.setEnabled(True)
self.B_fuel.setGeometry(QtCore.QRect(1050, 100, 271, 41))
self.B_fuel.setObjectName("B_fuel")
self.set_path1 = QtWidgets.QPushButton(self.centralWidget)
self.set_path1.setEnabled(True)
self.set_path1.setGeometry(QtCore.QRect(1100, 160, 101, 31))
self.set_path1.setObjectName("set_path1")
self.set_path2 = QtWidgets.QPushButton(self.centralWidget)
self.set_path2.setEnabled(True)
self.set_path2.setGeometry(QtCore.QRect(1100, 210, 101, 31))
self.set_path2.setObjectName("set_path2")
self.set_path3 = QtWidgets.QPushButton(self.centralWidget)
self.set_path3.setEnabled(True)
self.set_path3.setGeometry(QtCore.QRect(1100, 260, 101, 31))
self.set_path3.setObjectName("set_path3")
self.set_path4 = QtWidgets.QPushButton(self.centralWidget)
self.set_path4.setEnabled(True)
self.set_path4.setGeometry(QtCore.QRect(1100, 310, 101, 31))
self.set_path4.setObjectName("set_path4")
self.set_path5 = QtWidgets.QPushButton(self.centralWidget)
self.set_path5.setEnabled(True)
self.set_path5.setGeometry(QtCore.QRect(1100, 360, 101, 31))
self.set_path5.setObjectName("set_path5")
self.tool1 = QtWidgets.QToolButton(self.centralWidget)
self.tool1.setGeometry(QtCore.QRect(1240, 170, 25, 19))
self.tool1.setObjectName("tool1")
self.tool2 = QtWidgets.QToolButton(self.centralWidget)
self.tool2.setGeometry(QtCore.QRect(1240, 220, 25, 20))
self.tool2.setObjectName("tool2")
self.tool3 = QtWidgets.QToolButton(self.centralWidget)
self.tool3.setGeometry(QtCore.QRect(1240, 270, 25, 19))
self.tool3.setObjectName("tool3")
self.tool4 = QtWidgets.QToolButton(self.centralWidget)
self.tool4.setGeometry(QtCore.QRect(1240, 320, 25, 19))
self.tool4.setObjectName("tool4")
self.tool1x = QtWidgets.QToolButton(self.centralWidget)
self.tool1x.setGeometry(QtCore.QRect(1280, 220, 25, 19))
self.tool1x.setObjectName("tool1x")
self.tool2x = QtWidgets.QToolButton(self.centralWidget)
self.tool2x.setGeometry(QtCore.QRect(1280, 270, 25, 19))
self.tool2x.setObjectName("tool2x")
self.tool3x = QtWidgets.QToolButton(self.centralWidget)
self.tool3x.setGeometry(QtCore.QRect(1280, 320, 25, 19))
self.tool3x.setObjectName("tool3x")
self.tool4x = QtWidgets.QToolButton(self.centralWidget)
self.tool4x.setGeometry(QtCore.QRect(1280, 370, 25, 19))
self.tool4x.setObjectName("tool4x")
self.line = QtWidgets.QFrame(self.centralWidget)
self.line.setGeometry(QtCore.QRect(990, -50, 20, 851))
self.line.setFrameShape(QtWidgets.QFrame.VLine)
self.line.setFrameShadow(QtWidgets.QFrame.Sunken)
self.line.setObjectName("line")
self.T_aerodromes_input = QtWidgets.QTextEdit(self.centralWidget)
self.T_aerodromes_input.setGeometry(QtCore.QRect(30, 100, 331, 71))
self.T_aerodromes_input.setStyleSheet("font: 10pt \"MS Shell Dlg 2\";")
self.T_aerodromes_input.setObjectName("T_aerodromes_input")
self.label = QtWidgets.QLabel(self.centralWidget)
self.label.setGeometry(QtCore.QRect(30, 200, 161, 31))
self.label.setObjectName("label")
self.B_print = QtWidgets.QPushButton(self.centralWidget)
self.B_print.setGeometry(QtCore.QRect(530, 230, 41, 31))
self.B_print.setText("")
icon1 = QtGui.QIcon()
icon1.addPixmap(QtGui.QPixmap("images/printer.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
self.B_print.setIcon(icon1)
self.B_print.setIconSize(QtCore.QSize(41, 31))
self.B_print.setObjectName("B_print")
self.B_clear = QtWidgets.QPushButton(self.centralWidget)
self.B_clear.setGeometry(QtCore.QRect(490, 230, 41, 31))
self.B_clear.setText("")
self.label_2 = QtWidgets.QLabel(self.centralWidget)
self.label_2.setGeometry(QtCore.QRect(670, 30, 271, 41))
self.label_2.setStyleSheet("font: 75 11pt \"MS Shell Dlg 2\";")
self.label_2.setAlignment(QtCore.Qt.AlignCenter)
self.label_2.setObjectName("label_2")
self.label_3 = QtWidgets.QLabel(self.centralWidget)
self.label_3.setGeometry(QtCore.QRect(1050, 30, 271, 41))
self.label_3.setStyleSheet("font: 75 11pt \"MS Shell Dlg 2\";")
self.label_3.setAlignment(QtCore.Qt.AlignCenter)
self.label_3.setObjectName("label_3")
icon2 = QtGui.QIcon()
icon2.addPixmap(QtGui.QPixmap("images/clear.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
self.B_clear.setIcon(icon2)
self.B_clear.setIconSize(QtCore.QSize(41, 31))
self.B_clear.setObjectName("B_clear")
self.L_adinput.raise_()
self.L_progress.raise_()
self.B_aerodrome_data.raise_()
self.T_aerodrome_ouput.raise_()
self.B_alternates.raise_()
self.B_weather.raise_()
self.B_fuel.raise_()
self.set_path2.raise_()
self.set_path3.raise_()
self.set_path4.raise_()
self.set_path5.raise_()
self.tool1.raise_()
self.set_path1.raise_()
self.tool2.raise_()
self.tool3.raise_()
self.tool4.raise_()
self.tool1x.raise_()
self.tool2x.raise_()
self.tool3x.raise_()
self.tool4x.raise_()
self.line.raise_()
self.T_aerodromes_input.raise_()
self.label.raise_()
self.B_print.raise_()
self.B_clear.raise_()
self.label_2.raise_()
self.label_3.raise_()
MainWindow.setCentralWidget(self.centralWidget)
self.retranslateUi(MainWindow)
self.tool1.clicked.connect(self.tool2.show)
self.tool1.clicked.connect(self.set_path2.show)
self.tool2.clicked.connect(self.tool3.show)
self.tool3.clicked.connect(self.tool4.show)
self.tool3.clicked.connect(self.set_path4.show)
self.tool4.clicked.connect(self.set_path5.show)
self.tool2.clicked.connect(self.set_path3.show)
self.tool4x.clicked.connect(self.set_path5.hide)
self.tool3x.clicked.connect(self.tool4.hide)
self.tool3x.clicked.connect(self.set_path4.hide)
self.tool2x.clicked.connect(self.tool3.hide)
self.tool2x.clicked.connect(self.set_path3.hide)
self.tool1x.clicked.connect(self.tool2.hide)
self.tool1x.clicked.connect(self.set_path2.hide)
self.tool4x.clicked.connect(self.tool4x.hide)
self.tool3x.clicked.connect(self.tool3x.hide)
self.tool2x.clicked.connect(self.tool2x.hide)
self.tool1x.clicked.connect(self.tool1x.hide)
self.tool1.clicked.connect(self.tool1x.show)
self.tool2.clicked.connect(self.tool2x.show)
self.tool3.clicked.connect(self.tool3x.show)
self.tool4.clicked.connect(self.tool4x.show)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "Planner"))
self.L_adinput.setText(_translate("MainWindow", "ICAO LOCATORS"))
self.L_progress.setText(_translate("MainWindow", "Progress"))
self.B_aerodrome_data.setText(_translate("MainWindow", "AERODROME DATA"))
# self.T_aerodrome_ouput.setHtml(_translate("MainWindow", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
# "<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
# "p, li { white-space: pre-wrap; }\n"
# "</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8.25pt; font-weight:400; font-style:normal;\">\n"
# "<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><br /></p></body></html>"))
self.B_alternates.setText(_translate("MainWindow", "ALTERNATES XLSX"))
self.B_weather.setText(_translate("MainWindow", "WEATHER BRIEFING"))
self.B_fuel.setText(_translate("MainWindow", "FUEL XLSX"))
self.set_path1.setText(_translate("MainWindow", "SET FORM"))
self.set_path2.setText(_translate("MainWindow", "SET FORM"))
self.set_path3.setText(_translate("MainWindow", "SET FORM"))
self.set_path4.setText(_translate("MainWindow", "SET FORM"))
self.set_path5.setText(_translate("MainWindow", "SET FORM"))
self.tool1.setText(_translate("MainWindow", "..."))
self.tool2.setText(_translate("MainWindow", "..."))
self.tool3.setText(_translate("MainWindow", "..."))
self.tool4.setText(_translate("MainWindow", "..."))
self.tool1x.setText(_translate("MainWindow", "X"))
self.tool2x.setText(_translate("MainWindow", "X"))
self.tool3x.setText(_translate("MainWindow", "X"))
self.tool4x.setText(_translate("MainWindow", "X"))
self.T_aerodromes_input.setPlaceholderText(_translate("MainWindow", "Set 4 character ICAO Locator here , divided by spaces..."))
self.label.setText(_translate("MainWindow", "OUTPUT"))
self.label_2.setText(_translate("MainWindow", "GENERAL"))
self.label_3.setText(_translate("MainWindow", "FUEL"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
答案 0 :(得分：0)
在你的情况下，我发现你已经不必要地创建了函数，我已经删除了一些。根据你告诉我的信息，信号没有必要携带信息，因此我将创建一个没有参数的信号。连接到按钮的插槽必须使QProgressBar可见并启动线程，并且信号job_done必须与隐藏QProgressBar的方法连接，在以下示例中使用QThread::sleep()来模拟一些处理。
class ProgressThread(QtCore.QThread):
job_done = QtCore.pyqtSignal()
def __init__(self, parent=None):
super(ProgressThread, self).__init__(parent)
def do_work(self):
QtCore.QThread.sleep(2) # emulate processing
self.job_done.emit()
def run(self):
self.do_work()
class mainProgram(QtWidgets.QMainWindow, Ui_MainWindow): # main window
def __init__(self, parent=None):
super(mainProgram, self).__init__(parent)
self.setupUi(self)
self.progress_thread = ProgressThread()
self.progress_thread.job_done.connect(self.on_job_done)
self.create_ui()
self.B_aerodrome_data.clicked.connect(self.aerodrome_data)
def aerodrome_data(self):
self.start_thread()
def start_thread(self):
self.progress.setVisible(True)
self.progress_thread.start()
def on_job_done(self):
print("Generated string : ")
self.progress.setVisible(False)
def create_ui(self):
[...]
答案 1 :(得分：0)
尝试此代码，您将在这里找到解决方案。 当您按下按钮时，线程将启动并将int数据从0-100发射到进度条
from PyQt5.QtWidgets import QMainWindow,QWidget,QApplication,QVBoxLayout,QPushButton,QProgressBar
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import Qt,QThread,pyqtSignal
import time
import sys
class THREAD(QThread): # QThread is use for parallal execution
EMIT=pyqtSignal(int)
def run(self):
count=0
while count<=100:
count+=1
self.EMIT.emit(count)
time.sleep(0.1)
class Window(QMainWindow):
def __init__(self):
super().__init__()
self.ICON="icon.jpg"
self.TITLE="ROBO Science LAB"
self.TOP = 100
self.LEFT = 100
self.WIDTH = 700
self.HEIGHT = 500
self.InitWindow()
self.setCentralWidget(ComponentManagement())
self.show()
def InitWindow(self):
self.setWindowIcon(QIcon(self.ICON))
self.setWindowTitle(self.TITLE)
self.setGeometry(self.TOP,self.LEFT,self.WIDTH,self.HEIGHT)
class ComponentManagement(QWidget):
def __init__(self):
super().__init__()
self.UIcomponent()
def UIcomponent(self):
vbox = QVBoxLayout()
self.progress1 = QProgressBar()
BUTTON = QPushButton("Click to start progress")
BUTTON.setStyleSheet("background:#E67E22")
BUTTON.clicked.connect(self.StartProgressBar)
vbox.addWidget(self.progress1)
vbox.addWidget(BUTTON)
self.setLayout(vbox)
def SetProgressValue(self, val):
self.progress1.setValue(val)
def StartProgressBar(self):
self.ThredObject = THREAD()
self.ThredObject.EMIT.connect(self.SetProgressValue)
self.ThredObject.start()
if __name__=="__main__":
App=QApplication(sys.argv)
window=Window()
sys.exit(App.exec())