如何根据 PyQt5 Python 中的窗口大小调整 PyQt5 堆叠小部件的大小? [英] How to resize a PyQt5 stacked widget as per window size in PyQt5 Python?

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本文介绍了如何根据 PyQt5 Python 中的窗口大小调整 PyQt5 堆叠小部件的大小?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我正在qt-desginer 中设计一个ui.我必须创建一个 UI，它有一个带有按钮的侧边菜单栏，无论按下哪个按钮，其相应的数据都会显示在右侧.

为了设计这个，我在中央小部件的水平布局中放置了两个QFrame.我减少了左侧 QFrame 的宽度，命名为 side_menu_bar，因此它变成了侧边菜单栏.在名为 content_area 的右侧 QFrame 上，我放置了一个带有多个页面的 stackedWidget.

现在我想在 stackedWidget 上显示的任何数据都必须覆盖 content_area 的完整区域，因此我使用了 vertical layoutstackedWidget.在stackedWidget的page_2上，我放置了一个tablewidget.如果用户单击侧边菜单栏上的 pushButton，将显示此 page_2.

下面是UI文件的python代码:

# -*- 编码:utf-8 -*-# 读取ui文件'home2.ui'生成的表单实现## 创建者:PyQt5 UI 代码生成器 5.15.0## 警告:当 pyuic5 被删除时，对此文件所做的任何手动更改都将丢失# 再次运行.除非您知道自己在做什么，否则不要编辑此文件.从 PyQt5 导入 QtCore、QtGui、QtWidgets类 Ui_home_window(对象):def setupUi(self, home_window):home_window.setObjectName("home_window")home_window.resize(1216, 613)self.centralwidget = QtWidgets.QWidget(home_window)self.centralwidget.setObjectName("centralwidget")self.layoutWidget = QtWidgets.QWidget(self.centralwidget)self.layoutWidget.setGeometry(QtCore.QRect(2, 0, 1211, 611))self.layoutWidget.setObjectName("layoutWidget")self.horizo​​ntalLayout_2 = QtWidgets.QHBoxLayout(self.layoutWidget)self.horizo​​ntalLayout_2.setContentsMargins(0, 0, 0, 0)self.horizo​​ntalLayout_2.setObjectName("horizo​​ntalLayout_2")self.side_menu_bar = QtWidgets.QFrame(self.layoutWidget)self.side_menu_bar.setMinimumSize(QtCore.QSize(0, 0))self.side_menu_bar.setMaximumSize(QtCore.QSize(120, 16777215))self.side_menu_bar.setFrameShape(QtWidgets.QFrame.StyledPanel)self.side_menu_bar.setFrameShadow(QtWidgets.QFrame.Raised)self.side_menu_bar.setObjectName("side_menu_bar")self.pushButton = QtWidgets.QPushButton(self.side_menu_bar)self.pushButton.setGeometry(QtCore.QRect(20, 100, 75, 23))self.pushButton.setObjectName("pushButton")self.horizo​​ntalLayout_2.addWidget(self.side_menu_bar)self.content_area = QtWidgets.QFrame(self.layoutWidget)self.content_area.setStyleSheet("背景颜色:rgb(170, 255, 0);")self.content_area.setFrameShape(QtWidgets.QFrame.StyledPanel)self.content_area.setFrameShadow(QtWidgets.QFrame.Raised)self.content_area.setObjectName("content_area")self.verticalLayoutWidget = QtWidgets.QWidget(self.content_area)self.verticalLayoutWidget.setGeometry(QtCore.QRect(9, 9, 1071, 591))self.verticalLayoutWidget.setObjectName("verticalLayoutWidget")self.verticalLayout = QtWidgets.QVBoxLayout(self.verticalLayoutWidget)self.verticalLayout.setContentsMargins(0, 0, 0, 0)self.verticalLayout.setObjectName("verticalLayout")self.stackedWidget = QtWidgets.QStackedWidget(self.verticalLayoutWidget)self.stackedWidget.setObjectName(stackedWidget")self.page = QtWidgets.QWidget()self.page.setObjectName(页面")self.stackedWidget.addWidget(self.page)self.page_2 = QtWidgets.QWidget()self.page_2.setObjectName("page_2")self.tableWidget = QtWidgets.QTableWidget(self.page_2)self.tableWidget.setGeometry(QtCore.QRect(0, 0, 1071, 591))self.tableWidget.setRowCount(50)self.tableWidget.setColumnCount(50)self.tableWidget.setObjectName("tableWidget")self.stackedWidget.addWidget(self.page_2)self.verticalLayout.addWidget(self.stackedWidget)self.horizo​​ntalLayout_2.addWidget(self.content_area)home_window.setCentralWidget(self.centralwidget)self.retranslateUi(home_window)QtCore.QMetaObject.connectSlotsByName(home_window)def retranslateUi(self, home_window):_translate = QtCore.QCoreApplication.translatehome_window.setWindowTitle(_translate(home_window", MainWindow"))self.pushButton.setText(_translate(home_window", PushButton"))如果 __name__ == __main__":导入系统app = QtWidgets.QApplication(sys.argv)home_window = QtWidgets.QMainWindow()ui = Ui_home_window()ui.setupUi(home_window)home_window.show()sys.exit(app.exec_())

以下是我在 app.py

中使用它的方式

导入系统从 PyQt5.QtWidgets 导入 QApplication、QMainWindow从 src.home2_ui 导入 Ui_home_window类 HomeWindow(QMainWindow, Ui_home_window):def __init__(self):QMainWindow.__init__(self)self.home_ui = Ui_home_window()self.home_ui.setupUi(self)self.showMaximized()布局 = self.home_ui.horizo​​ntalLayout_2self.home_ui.centralwidget.setLayout(布局)self.home_ui.pushButton.clicked.connect(self.show_page2)def show_page2(self):layout2 = self.home_ui.verticalLayoutlayout2.addWidget(self.home_ui.stackedWidget)self.home_ui.content_area.setLayout(layout2)app = QApplication(sys.argv)main_window = HomeWindow()main_window.show()sys.exit(app.exec_())

现在根据我的理解，我想全屏显示我的应用程序并希望适合窗口的整个区域.为此，我已将 horizo​​ntal layout 附加到 central widget:

layout = self.home_ui.horizo​​ntalLayout_2self.home_ui.centralwidget.setLayout(布局)

现在为了使表格小部件覆盖堆叠小部件的整个区域，我在按钮按下事件中使用了以下代码:

layout2 = self.home_ui.verticalLayoutlayout2.addWidget(self.home_ui.stackedWidget)self.home_ui.content_area.setLayout(layout2)

根据我的理解，我们想在堆叠小部件中显示的任何小部件都必须覆盖堆叠小部件的整个区域，因此我将堆叠小部件附加到垂直布局，然后将内容区域的布局设置为 layout2(即垂直布局).现在这样做，如果我点击按钮显示表格小部件，则不会显示任何内容:

这里我有一个问题，当我点击按钮显示表格小部件时，没有显示表格小部件，而是显示一个空白窗口，该窗口也覆盖了侧边菜单栏.?

如果我将上面的代码替换为:

layout2 = self.home_ui.verticalLayoutlayout2.addWidget(self.home_ui.tableWidget)self.home_ui.content_area.setLayout(layout2)

所以在这种情况下，我将表格小部件添加到垂直布局而不是堆叠小部件.下面是输出:

它确实显示表格，但只在半屏上显示.它还删除了侧边菜单栏.

我无法完全理解在使用 stacked widgets 时如何使用 layout.任何人都可以请指导我如何做到这一点.请帮忙.谢谢

这是下载<代码的

更新:

我终于能够解决这个问题了.我使用了作为基本布局的水平布局，它有两个孩子的 content area 和 side menu bar.内容区域和侧边菜单栏都有垂直布局.在 side menu bar 中，我可以添加任意数量的内容，并且由于垂直布局，它会自动对齐.在 content area 我添加了堆叠小部件，它也是垂直布局的一个子元素.在堆叠小部件的第 2 页中，我不得不添加另一个垂直布局，然后添加表格小部件.现在显示完美.

以下是全部代码:

界面代码:

# -*- 编码:utf-8 -*-# 读取ui文件'home5.ui'生成的表单实现## 创建者:PyQt5 UI 代码生成器 5.15.0## 警告:当 pyuic5 被删除时，对此文件所做的任何手动更改都将丢失# 再次运行.除非您知道自己在做什么，否则不要编辑此文件.从 PyQt5 导入 QtCore、QtGui、QtWidgets类 Ui_home_window(对象):def setupUi(self, home_window):home_window.setObjectName("home_window")home_window.resize(1196, 573)self.centralwidget = QtWidgets.QWidget(home_window)self.centralwidget.setObjectName("centralwidget")self.widget = QtWidgets.QWidget(self.centralwidget)self.widget.setGeometry(QtCore.QRect(10, 10, 1181, 561))self.widget.setObjectName("widget")self.base_h_layout = QtWidgets.QHBoxLayout(self.widget)self.base_h_layout.setContentsMargins(0, 0, 0, 0)self.base_h_layout.setSpacing(0)self.base_h_layout.setObjectName("base_h_layout")self.side_menu_bar = QtWidgets.QFrame(self.widget)self.side_menu_bar.setMaximumSize(QtCore.QSize(120, 16777215))self.side_menu_bar.setFrameShape(QtWidgets.QFrame.StyledPanel)self.side_menu_bar.setFrameShadow(QtWidgets.QFrame.Raised)self.side_menu_bar.setObjectName("side_menu_bar")self.verticalLayout_2 = QtWidgets.QVBoxLayout(self.side_menu_bar)self.verticalLayout_2.setContentsMargins(0, 0, 0, 0)self.verticalLayout_2.setSpacing(0)self.verticalLayout_2.setObjectName("verticalLayout_2")self.menu_bar_v_layout = QtWidgets.QVBoxLayout()self.menu_bar_v_layout.setContentsMargins(10, 10, 10, 10)self.menu_bar_v_layout.setSpacing(10)self.menu_bar_v_layout.setObjectName("menu_bar_v_layout")self.pushButton = QtWidgets.QPushButton(self.side_menu_bar)self.pushButton.setObjectName("pushButton")self.menu_bar_v_layout.addWidget(self.pushButton)self.verticalLayout_2.addLayout(self.menu_bar_v_layout)self.base_h_layout.addWidget(self.side_menu_bar)self.content_area = QtWidgets.QFrame(self.widget)self.content_area.setFrameShape(QtWidgets.QFrame.StyledPanel)self.content_area.setFrameShadow(QtWidgets.QFrame.Raised)self.content_area.setObjectName("content_area")self.verticalLayout = QtWidgets.QVBoxLayout(self.content_area)self.verticalLayout.setContentsMargins(0, 0, 0, 0)self.verticalLayout.setSpacing(0)self.verticalLayout.setObjectName("verticalLayout")self.content_area_v_layout = QtWidgets.QVBoxLayout()self.content_area_v_layout.setSpacing(0)self.content_area_v_layout.setObjectName("content_area_v_layout")self.stackedWidget = QtWidgets.QStackedWidget(self.content_area)self.stackedWidget.setObjectName(stackedWidget")self.page = QtWidgets.QWidget()self.page.setObjectName(页面")self.stackedWidget.addWidget(self.page)self.page_2 = QtWidgets.QWidget()self.page_2.setObjectName("page_2")self.verticalLayout_4 = QtWidgets.QVBoxLayout(self.page_2)self.verticalLayout_4.setObjectName("verticalLayout_4")self.table_v_layout = QtWidgets.QVBoxLayout()self.table_v_layout.setSpacing(0)self.table_v_layout.setObjectName("table_v_layout")self.tableWidget = QtWidgets.QTableWidget(self.page_2)self.tableWidget.setRowCount(50)self.tableWidget.setColumnCount(50)self.tableWidget.setObjectName("tableWidget")self.table_v_layout.addWidget(self.tableWidget)self.verticalLayout_4.addLayout(self.table_v_layout)self.stackedWidget.addWidget(self.page_2)self.content_area_v_layout.addWidget(self.stackedWidget)self.verticalLayout.addLayout(self.content_area_v_layout)self.base_h_layout.addWidget(self.content_area)home_window.setCentralWidget(self.centralwidget)self.retranslateUi(home_window)QtCore.QMetaObject.connectSlotsByName(home_window)def retranslateUi(self, home_window):_translate = QtCore.QCoreApplication.translatehome_window.setWindowTitle(_translate(home_window", MainWindow"))self.pushButton.setText(_translate(home_window", PushButton"))如果 __name__ == __main__":导入系统app = QtWidgets.QApplication(sys.argv)home_window = QtWidgets.QMainWindow()ui = Ui_home_window()ui.setupUi(home_window)home_window.show()sys.exit(app.exec_())

app.py:

class HomeWindow(QMainWindow, Ui_home_window):def __init__(self):QMainWindow.__init__(self)self.home_ui = Ui_home_window()self.home_ui.setupUi(self)self.showMaximized()base_layout = self.home_ui.base_h_layoutself.home_ui.centralwidget.setLayout(base_layout)side_menu_v_layout = self.home_ui.menu_bar_v_layoutself.home_ui.side_menu_bar.setLayout(side_menu_v_layout)content_v_layout = self.home_ui.content_area_v_layoutself.home_ui.content_area.setLayout(content_v_layout)table_layout = self.home_ui.table_v_layoutself.home_ui.page_2.setLayout(table_layout)self.home_ui.pushButton.clicked.connect(self.show_page2)def show_page2(self):self.home_ui.stackedWidget.setCurrentWidget(self.home_ui.page_2)

这就是 qt-designer 对象检查器的样子:

感谢@allec 和@musicamante.

解决方案

side_menu_bar 没有出现，因为它没有布局管理器来确定合适的大小.即使您直接向框架添加了一个子按钮，它也不会相应地调整大小，除非您明确告诉它.您有很多额外的占位符 QWidget，特别是 layoutWidget、verticalLayoutWidget 和 page_2，它们使这个设计变得比必要的复杂.任何类型的小部件都可以直接添加到布局或堆叠小部件中.这两个 QFrame 应该每个都有一个仅包含子小部件的布局.

class Ui_home_window(object):def setupUi(self, home_window):home_window.setObjectName("home_window")home_window.resize(1216, 613)self.centralwidget = QtWidgets.QWidget(home_window)self.centralwidget.setObjectName("centralwidget")self.horizo​​ntalLayout_2 = QtWidgets.QHBoxLayout(self.centralwidget)self.horizo​​ntalLayout_2.setContentsMargins(0, 0, 0, 0)self.horizo​​ntalLayout_2.setObjectName("horizo​​ntalLayout_2")self.side_menu_bar = QtWidgets.QFrame()self.side_menu_bar.setMinimumSize(QtCore.QSize(0, 0))self.side_menu_bar.setMaximumSize(QtCore.QSize(120, 16777215))self.side_menu_bar.setFrameShape(QtWidgets.QFrame.StyledPanel)self.side_menu_bar.setFrameShadow(QtWidgets.QFrame.Raised)self.side_menu_bar.setObjectName("side_menu_bar")self.pushButton = QtWidgets.QPushButton(self.side_menu_bar)self.pushButton.setObjectName("pushButton")vbox = QtWidgets.QVBoxLayout(self.side_menu_bar)vbox.addWidget(self.pushButton)self.horizo​​ntalLayout_2.addWidget(self.side_menu_bar)self.content_area = QtWidgets.QFrame()self.content_area.setStyleSheet("背景颜色:rgb(170, 255, 0);")self.content_area.setFrameShape(QtWidgets.QFrame.StyledPanel)self.content_area.setFrameShadow(QtWidgets.QFrame.Raised)self.content_area.setObjectName("content_area")self.verticalLayout = QtWidgets.QVBoxLayout(self.content_area)self.verticalLayout.setContentsMargins(0, 0, 0, 0)self.verticalLayout.setObjectName("verticalLayout")self.stackedWidget = QtWidgets.QStackedWidget()self.stackedWidget.setObjectName(stackedWidget")self.page = QtWidgets.QWidget()self.page.setObjectName(页面")self.stackedWidget.addWidget(self.page)self.tableWidget = QtWidgets.QTableWidget()self.tableWidget.setRowCount(50)self.tableWidget.setColumnCount(50)self.tableWidget.setObjectName("tableWidget")self.stackedWidget.addWidget(self.tableWidget)self.verticalLayout.addWidget(self.stackedWidget)self.horizo​​ntalLayout_2.addWidget(self.content_area)home_window.setCentralWidget(self.centralwidget)self.retranslateUi(home_window)QtCore.QMetaObject.connectSlotsByName(home_window)def retranslateUi(self, home_window):_translate = QtCore.QCoreApplication.translatehome_window.setWindowTitle(_translate(home_window", MainWindow"))self.pushButton.setText(_translate(home_window", PushButton"))

无需在HomeWindow中为widget进一步设置布局，您可以使用QStackedWidget.setCurrentIndex()切换到另一个页面.

class HomeWindow(QMainWindow, Ui_home_window):def __init__(self):QMainWindow.__init__(self)self.home_ui = Ui_home_window()self.home_ui.setupUi(self)self.showMaximized()self.home_ui.pushButton.clicked.connect(self.show_page2)def show_page2(self):self.home_ui.stackedWidget.setCurrentIndex(1)

按下按钮之前:

按下按钮后:

I am designing a ui in qt-desginer. I have to create a UI which has a side menu bar with buttons and whichever button is pressed, its appropriate data will be shown on right side.

To design this, I have I have placed two QFrame in horizontal layout on central widget. I have reduced the width of left side QFrame named side_menu_bar and thus it has become the side menu bar. On the right side QFrame named content_area, I have placed a stackedWidget with multiple pages.

Now whatever data I want to show on stackedWidget has to cover the complete area of content_area and thus I have used a vertical layout on stackedWidget. On the page_2 of stackedWidget, I have placed a tablewidget. This page_2 will be shown if a user clicks pushButton on side menu bar.

Below is the python code of the UI file:

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

# Form implementation generated from reading ui file 'home2.ui'
#
# Created by: PyQt5 UI code generator 5.15.0
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_home_window(object):
    def setupUi(self, home_window):
        home_window.setObjectName("home_window")
        home_window.resize(1216, 613)
        self.centralwidget = QtWidgets.QWidget(home_window)
        self.centralwidget.setObjectName("centralwidget")
        self.layoutWidget = QtWidgets.QWidget(self.centralwidget)
        self.layoutWidget.setGeometry(QtCore.QRect(2, 0, 1211, 611))
        self.layoutWidget.setObjectName("layoutWidget")
        self.horizontalLayout_2 = QtWidgets.QHBoxLayout(self.layoutWidget)
        self.horizontalLayout_2.setContentsMargins(0, 0, 0, 0)
        self.horizontalLayout_2.setObjectName("horizontalLayout_2")
        self.side_menu_bar = QtWidgets.QFrame(self.layoutWidget)
        self.side_menu_bar.setMinimumSize(QtCore.QSize(0, 0))
        self.side_menu_bar.setMaximumSize(QtCore.QSize(120, 16777215))
        self.side_menu_bar.setFrameShape(QtWidgets.QFrame.StyledPanel)
        self.side_menu_bar.setFrameShadow(QtWidgets.QFrame.Raised)
        self.side_menu_bar.setObjectName("side_menu_bar")
        self.pushButton = QtWidgets.QPushButton(self.side_menu_bar)
        self.pushButton.setGeometry(QtCore.QRect(20, 100, 75, 23))
        self.pushButton.setObjectName("pushButton")
        self.horizontalLayout_2.addWidget(self.side_menu_bar)
        self.content_area = QtWidgets.QFrame(self.layoutWidget)
        self.content_area.setStyleSheet("background-color: rgb(170, 255, 0);")
        self.content_area.setFrameShape(QtWidgets.QFrame.StyledPanel)
        self.content_area.setFrameShadow(QtWidgets.QFrame.Raised)
        self.content_area.setObjectName("content_area")
        self.verticalLayoutWidget = QtWidgets.QWidget(self.content_area)
        self.verticalLayoutWidget.setGeometry(QtCore.QRect(9, 9, 1071, 591))
        self.verticalLayoutWidget.setObjectName("verticalLayoutWidget")
        self.verticalLayout = QtWidgets.QVBoxLayout(self.verticalLayoutWidget)
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout.setObjectName("verticalLayout")
        self.stackedWidget = QtWidgets.QStackedWidget(self.verticalLayoutWidget)
        self.stackedWidget.setObjectName("stackedWidget")
        self.page = QtWidgets.QWidget()
        self.page.setObjectName("page")
        self.stackedWidget.addWidget(self.page)
        self.page_2 = QtWidgets.QWidget()
        self.page_2.setObjectName("page_2")
        self.tableWidget = QtWidgets.QTableWidget(self.page_2)
        self.tableWidget.setGeometry(QtCore.QRect(0, 0, 1071, 591))
        self.tableWidget.setRowCount(50)
        self.tableWidget.setColumnCount(50)
        self.tableWidget.setObjectName("tableWidget")
        self.stackedWidget.addWidget(self.page_2)
        self.verticalLayout.addWidget(self.stackedWidget)
        self.horizontalLayout_2.addWidget(self.content_area)
        home_window.setCentralWidget(self.centralwidget)

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

    def retranslateUi(self, home_window):
        _translate = QtCore.QCoreApplication.translate
        home_window.setWindowTitle(_translate("home_window", "MainWindow"))
        self.pushButton.setText(_translate("home_window", "PushButton"))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    home_window = QtWidgets.QMainWindow()
    ui = Ui_home_window()
    ui.setupUi(home_window)
    home_window.show()
    sys.exit(app.exec_())

and below is how I am using it in app.py

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow
from src.home2_ui import Ui_home_window


class HomeWindow(QMainWindow, Ui_home_window):
    def __init__(self):
        QMainWindow.__init__(self)
        self.home_ui = Ui_home_window()
        self.home_ui.setupUi(self)
        self.showMaximized()

        layout = self.home_ui.horizontalLayout_2
        self.home_ui.centralwidget.setLayout(layout)

        self.home_ui.pushButton.clicked.connect(self.show_page2)

    def show_page2(self):
        layout2 = self.home_ui.verticalLayout
        layout2.addWidget(self.home_ui.stackedWidget)
        self.home_ui.content_area.setLayout(layout2)


app = QApplication(sys.argv)
main_window = HomeWindow()
main_window.show()
sys.exit(app.exec_())

Now as per my understanding, I want to show my application full screen and want to fit the complete area of the window. So for that I have attached the horizontal layout to central widget:

layout = self.home_ui.horizontalLayout_2
self.home_ui.centralwidget.setLayout(layout)

Now in order to make table widget cover the complete area of stacked widget I have used below code on button press event:

layout2 = self.home_ui.verticalLayout
layout2.addWidget(self.home_ui.stackedWidget)
self.home_ui.content_area.setLayout(layout2)

As per my understanding whatever widget we want to show in stacked widget has to cover the complete area of stacked widget and thus I have attached stacked widget to vertical layout and then I have set the layout of content area to layout2 (which is vertical layout). Now by doing this, if I click on the button to show table widget, nothing is getting shown:

Here I have a question, when I click on pushbutton to show table widget, table widget is not shown but instead a blank window is shown which is also covering the side menu bar.?

If I replace the above code to:

layout2 = self.home_ui.verticalLayout
layout2.addWidget(self.home_ui.tableWidget)
self.home_ui.content_area.setLayout(layout2)

so In this case I have added table widget to vertical layout instead of stacked widget. Below is the output:

It does shows table but only on half screen. Also it has removed the side menu bar too.

I am not able to fully understand how to use the layout when using stacked widgets. Can anyone please guide me on how to do this. Please help. Thanks

Here is the link to download the home2.ui file

Update:

I have finally been able to resolve this. I have used horizontal layout which is acting as a base layout and it has two childrens content area and side menu bar. Both content area and side menu bar have vertical layout. In side menu bar I can add as many as I want and it will be auto aligned due to vertical layout. In content area I have added stacked widget which is again a child of vertical layout. In page 2 of stacked widget, I had to add another vertical layout and then added table widget. Now it showing perfectly.

Below is all the code:

UI CODE:

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

# Form implementation generated from reading ui file 'home5.ui'
#
# Created by: PyQt5 UI code generator 5.15.0
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_home_window(object):
    def setupUi(self, home_window):
        home_window.setObjectName("home_window")
        home_window.resize(1196, 573)
        self.centralwidget = QtWidgets.QWidget(home_window)
        self.centralwidget.setObjectName("centralwidget")
        self.widget = QtWidgets.QWidget(self.centralwidget)
        self.widget.setGeometry(QtCore.QRect(10, 10, 1181, 561))
        self.widget.setObjectName("widget")
        self.base_h_layout = QtWidgets.QHBoxLayout(self.widget)
        self.base_h_layout.setContentsMargins(0, 0, 0, 0)
        self.base_h_layout.setSpacing(0)
        self.base_h_layout.setObjectName("base_h_layout")
        self.side_menu_bar = QtWidgets.QFrame(self.widget)
        self.side_menu_bar.setMaximumSize(QtCore.QSize(120, 16777215))
        self.side_menu_bar.setFrameShape(QtWidgets.QFrame.StyledPanel)
        self.side_menu_bar.setFrameShadow(QtWidgets.QFrame.Raised)
        self.side_menu_bar.setObjectName("side_menu_bar")
        self.verticalLayout_2 = QtWidgets.QVBoxLayout(self.side_menu_bar)
        self.verticalLayout_2.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout_2.setSpacing(0)
        self.verticalLayout_2.setObjectName("verticalLayout_2")
        self.menu_bar_v_layout = QtWidgets.QVBoxLayout()
        self.menu_bar_v_layout.setContentsMargins(10, 10, 10, 10)
        self.menu_bar_v_layout.setSpacing(10)
        self.menu_bar_v_layout.setObjectName("menu_bar_v_layout")
        self.pushButton = QtWidgets.QPushButton(self.side_menu_bar)
        self.pushButton.setObjectName("pushButton")
        self.menu_bar_v_layout.addWidget(self.pushButton)
        self.verticalLayout_2.addLayout(self.menu_bar_v_layout)
        self.base_h_layout.addWidget(self.side_menu_bar)
        self.content_area = QtWidgets.QFrame(self.widget)
        self.content_area.setFrameShape(QtWidgets.QFrame.StyledPanel)
        self.content_area.setFrameShadow(QtWidgets.QFrame.Raised)
        self.content_area.setObjectName("content_area")
        self.verticalLayout = QtWidgets.QVBoxLayout(self.content_area)
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout.setSpacing(0)
        self.verticalLayout.setObjectName("verticalLayout")
        self.content_area_v_layout = QtWidgets.QVBoxLayout()
        self.content_area_v_layout.setSpacing(0)
        self.content_area_v_layout.setObjectName("content_area_v_layout")
        self.stackedWidget = QtWidgets.QStackedWidget(self.content_area)
        self.stackedWidget.setObjectName("stackedWidget")
        self.page = QtWidgets.QWidget()
        self.page.setObjectName("page")
        self.stackedWidget.addWidget(self.page)
        self.page_2 = QtWidgets.QWidget()
        self.page_2.setObjectName("page_2")
        self.verticalLayout_4 = QtWidgets.QVBoxLayout(self.page_2)
        self.verticalLayout_4.setObjectName("verticalLayout_4")
        self.table_v_layout = QtWidgets.QVBoxLayout()
        self.table_v_layout.setSpacing(0)
        self.table_v_layout.setObjectName("table_v_layout")
        self.tableWidget = QtWidgets.QTableWidget(self.page_2)
        self.tableWidget.setRowCount(50)
        self.tableWidget.setColumnCount(50)
        self.tableWidget.setObjectName("tableWidget")
        self.table_v_layout.addWidget(self.tableWidget)
        self.verticalLayout_4.addLayout(self.table_v_layout)
        self.stackedWidget.addWidget(self.page_2)
        self.content_area_v_layout.addWidget(self.stackedWidget)
        self.verticalLayout.addLayout(self.content_area_v_layout)
        self.base_h_layout.addWidget(self.content_area)
        home_window.setCentralWidget(self.centralwidget)

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

    def retranslateUi(self, home_window):
        _translate = QtCore.QCoreApplication.translate
        home_window.setWindowTitle(_translate("home_window", "MainWindow"))
        self.pushButton.setText(_translate("home_window", "PushButton"))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    home_window = QtWidgets.QMainWindow()
    ui = Ui_home_window()
    ui.setupUi(home_window)
    home_window.show()
    sys.exit(app.exec_())

app.py:

class HomeWindow(QMainWindow, Ui_home_window):
    def __init__(self):
        QMainWindow.__init__(self)
        self.home_ui = Ui_home_window()
        self.home_ui.setupUi(self)
        self.showMaximized()

        base_layout = self.home_ui.base_h_layout
        self.home_ui.centralwidget.setLayout(base_layout)

        side_menu_v_layout = self.home_ui.menu_bar_v_layout
        self.home_ui.side_menu_bar.setLayout(side_menu_v_layout)

        content_v_layout = self.home_ui.content_area_v_layout
        self.home_ui.content_area.setLayout(content_v_layout)

        table_layout = self.home_ui.table_v_layout
        self.home_ui.page_2.setLayout(table_layout)

        self.home_ui.pushButton.clicked.connect(self.show_page2)

    def show_page2(self):
        self.home_ui.stackedWidget.setCurrentWidget(self.home_ui.page_2)

and this is how the qt-designer object inspector looks like:

Thanks to @allec and @musicamante.

解决方案

The side_menu_bar does not appear because it has no layout manager to determine a proper size. Even though you added a child button directly to the frame, it will not resize accordingly unless you explicitly tell it to. You have a lot of extra placeholder QWidgets, particularly layoutWidget, verticalLayoutWidget, and page_2 that are making this design more complicated than necessary. Any kind of widget can be added directly to the layout or stacked widget. The two QFrames should each have a layout only containing the child widgets.

class Ui_home_window(object):
    def setupUi(self, home_window):
        home_window.setObjectName("home_window")
        home_window.resize(1216, 613)
        self.centralwidget = QtWidgets.QWidget(home_window)
        self.centralwidget.setObjectName("centralwidget")
        
        self.horizontalLayout_2 = QtWidgets.QHBoxLayout(self.centralwidget)
        self.horizontalLayout_2.setContentsMargins(0, 0, 0, 0)
        self.horizontalLayout_2.setObjectName("horizontalLayout_2")
        self.side_menu_bar = QtWidgets.QFrame()
        self.side_menu_bar.setMinimumSize(QtCore.QSize(0, 0))
        self.side_menu_bar.setMaximumSize(QtCore.QSize(120, 16777215))
        self.side_menu_bar.setFrameShape(QtWidgets.QFrame.StyledPanel)
        self.side_menu_bar.setFrameShadow(QtWidgets.QFrame.Raised)
        self.side_menu_bar.setObjectName("side_menu_bar")
        self.pushButton = QtWidgets.QPushButton(self.side_menu_bar)
        self.pushButton.setObjectName("pushButton")
        vbox = QtWidgets.QVBoxLayout(self.side_menu_bar)
        vbox.addWidget(self.pushButton)
        self.horizontalLayout_2.addWidget(self.side_menu_bar)
        
        self.content_area = QtWidgets.QFrame()
        self.content_area.setStyleSheet("background-color: rgb(170, 255, 0);")
        self.content_area.setFrameShape(QtWidgets.QFrame.StyledPanel)
        self.content_area.setFrameShadow(QtWidgets.QFrame.Raised)
        self.content_area.setObjectName("content_area")
        self.verticalLayout = QtWidgets.QVBoxLayout(self.content_area)
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout.setObjectName("verticalLayout")
        self.stackedWidget = QtWidgets.QStackedWidget()
        self.stackedWidget.setObjectName("stackedWidget")
        self.page = QtWidgets.QWidget()
        self.page.setObjectName("page")
        self.stackedWidget.addWidget(self.page)
        self.tableWidget = QtWidgets.QTableWidget()
        self.tableWidget.setRowCount(50)
        self.tableWidget.setColumnCount(50)
        self.tableWidget.setObjectName("tableWidget")
        self.stackedWidget.addWidget(self.tableWidget)
        self.verticalLayout.addWidget(self.stackedWidget)
        self.horizontalLayout_2.addWidget(self.content_area)
        home_window.setCentralWidget(self.centralwidget)

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

    def retranslateUi(self, home_window):
        _translate = QtCore.QCoreApplication.translate
        home_window.setWindowTitle(_translate("home_window", "MainWindow"))
        self.pushButton.setText(_translate("home_window", "PushButton"))

There is no need to further set layouts to widgets in HomeWindow, you can switch to the other page with QStackedWidget.setCurrentIndex().

class HomeWindow(QMainWindow, Ui_home_window):
    def __init__(self):
        QMainWindow.__init__(self)
        self.home_ui = Ui_home_window()
        self.home_ui.setupUi(self)
        self.showMaximized()

        self.home_ui.pushButton.clicked.connect(self.show_page2)

    def show_page2(self):
        self.home_ui.stackedWidget.setCurrentIndex(1)

Before pressing button:

After pressing button:

这篇关于如何根据 PyQt5 Python 中的窗口大小调整 PyQt5 堆叠小部件的大小?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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