PyQT 布局之间的导航

下面是我的应用程序代码，它允许您在窗口之间切换。该菜单有两个编程选项，例如“详细报告”和“所有公司”，现在加载布局后，我不知道如何将按钮放在这两个视图中，以允许您将视图从“详细报告”更改为“全部”公司，反之亦然。你能帮助我吗 ：） ？

class App(QMainWindow):
def __init__(self):
    super().__init__()
    self.dashboardView = DashboardWindow()
    self.detailView = RaportWindow()
    self.infoView = InfoWindow()
    self.init_ui()
    self.show()

def init_ui(self):

    main_menu = self.menuBar()
    dashboard = main_menu.addMenu('Dashboard')

    dashboard.addAction(QAction('Detail Raport', self))
    dashboard.addAction(QAction('All companies', self))
    dashboard.triggered.connect(self.change_view)
    self.setWindowTitle(self.title)
    self.show()


def change_view(self, q):
    if q.text() == 'Detail Raport':
        self.detailView.detailRaport(self)
        self.show()
    if q.text() == 'All companies':
        self.dashboardView.setupUIdashboard(self)
        self.show()


class RaportWindow(object):
def detailRaport(self, MainWindow):
    self.centralwidget = QWidget(MainWindow)
    grid = QGridLayout()
    ...
    self.centralwidget.setLayout(grid)
    MainWindow.setCentralWidget(self.centralwidget)

class DashboardWindow(object):
def setupUIdashboard(self, MainWindow):
    self.centralwidget = QWidget(MainWindow)
    grid = QGridLayout()
    .....

    self.centralwidget.setLayout(grid)
    scrollArea = QScrollArea()
    scrollArea.setWidgetResizable(True)
    scrollArea.setWidget(self.centralwidget)
    MainWindow.setCentralWidget(scrollArea)

首先，DashboardWindow 和 RaportWindow 不是小部件，它们是填充您可能使用 Qt Designer 创建的小部件的类，您必须做的是创建一个继承自小部件的类并使用以前的类来填充它。

进入正题，你必须使用QStackedWidget能够交换小部件。

class App(QMainWindow):
    def __init__(self):
        super().__init__()

        self.init_ui()
        self.show()

    def init_ui(self):
        main_menu = self.menuBar()
        dashboard = main_menu.addMenu('Dashboard')
        dashboard.addAction(QAction('Detail Raport', self))
        dashboard.addAction(QAction('All companies', self))
        dashboard.triggered.connect(self.change_view)

        self.dashboardView = Dashboard()
        self.detailView = Raport()

        self.stacked = QStackedWidget()
        self.setCentralWidget(self.stacked)
        self.stacked.addWidget(self.detailView)
        self.stacked.addWidget(self.dashboardView)

    def change_view(self, q):
        if q.text() == 'Detail Raport':
            self.stacked.setCurrentWidget(self.detailView)
        elif q.text() == 'All companies':
            self.stacked.setCurrentWidget(self.dashboardView)

class RaportWindow(object):
    def detailRaport(self, MainWindow):
        ...

class DashboardWindow(object):
    def setupUIdashboard(self, MainWindow):
        ...

class Dashboard(QMainWindow, DashboardWindow):
    def __init__(self, parent=None):
        super(Dashboard, self).__init__(parent)
        self.setupUIdashboard(self)

class Raport(QMainWindow, RaportWindow):
    def __init__(self, parent=None):
        super(Raport, self).__init__(parent)
        self.detailRaport(self)

if __name__ == '__main__':
    import sys
    app = QApplication(sys.argv)
    w = App()
    w.show()
    sys.exit(app.exec_())