[pyqt5]给状态栏加控件

# -*- coding: utf-8 -*-

from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QLabel, QProgressBar
class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(1042, 748)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 1042, 30))
        self.menubar.setObjectName("menubar")
        self.menu = QtWidgets.QMenu(self.menubar)
        self.menu.setObjectName("menu")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)
        self.toolBar = QtWidgets.QToolBar(MainWindow)
        self.toolBar.setObjectName("toolBar")
        MainWindow.addToolBar(QtCore.Qt.TopToolBarArea, self.toolBar)
        self.actionwriter = QtWidgets.QAction(MainWindow)
        self.actionwriter.setObjectName("actionwriter")
        self.menu.addAction(self.actionwriter)
        self.menubar.addAction(self.menu.menuAction())

        self.initStatusBar()

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.menu.setTitle(_translate("MainWindow", "菜单"))
        self.toolBar.setWindowTitle(_translate("MainWindow", "toolBar"))
        self.actionwriter.setText(_translate("MainWindow", "writer"))

    # 初始化状态栏
    def initStatusBar(self):
        # 定义文本标签
        self.statusLabel = QLabel()
        self.statusLabel.setText("状态说明")
        self.statusLabel.setObjectName('statusLabel')

        self.statusLabel_show = QLabel()
        self.statusLabel_show.setText("等待操作中...")
        self.statusLabel_show.setObjectName('statusLabel_show')

        # # 定义水平进度条
        # self.progressBar = QProgressBar()
        # # 设置进度条的范围，参数1为最小值，参数2为最大值（可以调得更大，比如1000
        # self.progressBar.setRange(0, 100)
        # # 设置进度条的初始值
        # self.progressBar.setValue(66)

        # 往状态栏中添加组件（stretch应该是拉伸组件宽度）-->会添加到状态栏左侧
        self.statusbar.addWidget(self.statusLabel)
        self.statusbar.addWidget(self.statusLabel_show)
        #self.statusbar.addWidget(self.progressBar)

    # 往状态栏中添加组件（stretch应该是拉伸组件宽度）-->会添加到状态栏的右侧
    # self.statusbar.addPermanentWidget(self.statusLabel, stretch=2)
    # self.statusbar.addPermanentWidget(self.progressBar, stretch=10)

    # self.progressBar.hide()


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_())