PyQt5 QDockWidget – 在它里面设置多个widget

在这篇文章中，我们将看到如何向QDockWidget添加/设置多个widget。QDockWidget提供了dock widget的概念，也被称为工具调色板或实用窗口。停靠窗口是放置在QMainWindow（原始窗口）中中央部件周围的停靠部件区域的次要窗口。我们使用setWidget方法来添加/设置widget到dock widget。但是这只用于设置单一的widget。

为了在里面设置多个widget，我们必须做以下工作

1.创建一个主窗口类

2.在该类中创建一个QDockWidget对象并设置其属性

3.创建一个QWidget对象

4.创建一个QLayout对象

5.创建各种我们想要添加到QDockWidget中的widget对象

6.在addWidget方法的帮助下，将这些widget添加到之前创建的布局中

7.在setLayout方法的帮助下，将这个布局设置为QWidget对象

8.在setWidget方法的帮助下，将这个QWidget对象设置为QDockWidget对象

下面是实现

# importing libraries
from PyQt5.QtWidgets import *
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import sys
 
 
class Window(QMainWindow):
 
    def __init__(self):
        super().__init__()
 
        # setting title
        self.setWindowTitle("Python ")
 
        # setting geometry
        self.setGeometry(100, 100, 500, 400)
 
        # calling method
        self.UiComponents()
 
        # showing all the widgets
        self.show()
 
    # method for components
    def UiComponents(self):
 
        # creating dock widget
        dock = QDockWidget(self)
 
        # setting title to the dock widget
        dock.setWindowTitle("GfG ")
 
        # creating a QWidget object
        widget = QWidget(self)
 
        # creating a vertical box layout
        layout = QVBoxLayout(self)
 
        # push button 1
        push1 = QPushButton("A", self)
 
        # push button 2
        push2 = QPushButton("B", self)
 
        # push button 3
        push3 = QPushButton("C", self)
 
        # adding these buttons to the layout
        layout.addWidget(push1)
        layout.addWidget(push2)
        layout.addWidget(push3)
 
        # setting the layout to the widget
        widget.setLayout(layout)
 
        # adding widget to the layout
        dock.setWidget(widget)
 
        # creating a label
        label = QLabel("GeeksforGeeks", self)
 
        # setting geometry to the label
        label.setGeometry(100, 200, 300, 80)
 
        # making label multi line
        label.setWordWrap(True)
 
        # setting geometry tot he dock widget
        dock.setGeometry(100, 0, 200, 30)
 
 
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())