Python GUI库图形界面开发之PyQt5窗口布局控件QStackedWidget详细使用方法

介绍

在PyQt5窗口布局控件中，QStackedWidget是很常用的一个控件，它主要是用来实现多个Widget在同一个窗口下的切换。

QStackedWidget的基本使用方法

步骤一：导入库

from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *

步骤二：创建QStackedWidget并添加Widget

self.stacked_widget = QStackedWidget(self)
self.page1 = QWidget()
self.page2 = QWidget()
self.stacked_widget.addWidget(self.page1)
self.stacked_widget.addWidget(self.page2)

步骤三：设置当前显示的Widget

self.stacked_widget.setCurrentWidget(self.page1)

步骤四：在按钮的槽函数中进行切换

def button_click(self):
    self.stacked_widget.setCurrentWidget(self.page2)

QStackedWidget的高级使用方法

设置特定Widget的名称

self.stacked_widget.addWidget(self.page1, "Page1")
self.stacked_widget.addWidget(self.page2, "Page2")

获取当前显示的Widget的名称

current_widget_name = self.stacked_widget.currentWidget().objectName()

设置动画效果

self.stacked_widget.setAnimation(QStackedWidget.Slide)

示例一：切换多个Widget

from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *

class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.setWindowTitle("MyApp")
        self.resize(250,150)

        self.button1 = QPushButton("Button1")
        self.button1.clicked.connect(self.on_button1_clicked)
        self.button2 = QPushButton("Button2")
        self.button2.clicked.connect(self.on_button2_clicked)

        self.stacked_widget = QStackedWidget(self)
        self.page1 = QWidget()
        self.page1.setObjectName("Page1")
        self.page1_label = QLabel("This is Page1", self.page1)
        self.page2 = QWidget()
        self.page2.setObjectName("Page2")
        self.page2_label = QLabel("This is Page2", self.page2)

        self.stacked_widget.addWidget(self.page1)
        self.stacked_widget.addWidget(self.page2)

        layout = QHBoxLayout()
        layout.addWidget(self.button1)
        layout.addWidget(self.button2)

        vbox = QVBoxLayout()
        vbox.addLayout(layout)
        vbox.addWidget(self.stacked_widget)

        central_widget = QWidget()
        central_widget.setLayout(vbox)
        self.setCentralWidget(central_widget)

    def on_button1_clicked(self):
        self.stacked_widget.setCurrentWidget(self.page1)

    def on_button2_clicked(self):
        self.stacked_widget.setCurrentWidget(self.page2)

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

示例二：结合TabWidget和StackedWidget使用

from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *

class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.setWindowTitle("MyApp")
        self.resize(250,150)

        self.tab_widget = QTabWidget(self)
        self.tab_widget.addTab(QWidget(), "Tab1")
        self.tab_widget.addTab(QWidget(), "Tab2")

        self.stacked_widget = QStackedWidget(self)
        self.page1 = QWidget()
        self.page1.setObjectName("Page1")
        self.page1_label = QLabel("This is Page1", self.page1)
        self.page2 = QWidget()
        self.page2.setObjectName("Page2")
        self.page2_label = QLabel("This is Page2", self.page2)

        self.stacked_widget.addWidget(self.page1)
        self.stacked_widget.addWidget(self.page2)

        self.tab_widget.currentChanged.connect(self.on_tab_changed)

        vbox = QVBoxLayout()
        vbox.addWidget(self.tab_widget)
        vbox.addWidget(self.stacked_widget)

        central_widget = QWidget()
        central_widget.setLayout(vbox)
        self.setCentralWidget(central_widget)

    def on_tab_changed(self, index):
        self.stacked_widget.setCurrentIndex(index)

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

以上就是关于PyQt5中窗口布局控件QStackedWidget的使用方法，包括基本使用方法和高级使用方法，以及多个示例的说明。