PyQt5 QListWidget – 获取自动滚动边距

在本文中，我们将看到如何获得 QListWidget 的自动滚动边距。 QListWidget 是一个方便的类，它提供了一个带有经典的基于项目的界面的列表视图，用于添加和删除项目。 QListWidget 使用内部模型来管理列表中的每个 QListWidgetItem。当触发自动滚动时，此属性保存区域的大小。此属性控制触发自动滚动的视口边缘区域的大小。默认值为 16 像素，但可以借助setAutoScrollMargin方法进行更改。

In order to do this we will use autoScrollMargin method with the list widget object.

Syntax : list_widget.autoScrollMargin()

Argument : It takes no argument

Return : It returns integer

编程需要懂一点英语

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 a QListWidget
        list_widget = QListWidget(self)
  
        # setting geometry to it
        list_widget.setGeometry(50, 70, 150, 80)
  
        # list widget items
        item1 = QListWidgetItem("PyQt5 Geeks for Geeks")
        item2 = QListWidgetItem("B")
        item3 = QListWidgetItem("C")
        item4 = QListWidgetItem("D")
  
        # adding items to the list widget
        list_widget.addItem(item1)
        list_widget.addItem(item2)
        list_widget.addItem(item3)
        list_widget.addItem(item4)
  
        # setting drag and drop property
        list_widget.setDragDropMode(3)
  
        # setting auto scroll property
        list_widget.setAutoScroll(True)
  
        # setting auto scroll margin
        list_widget.setAutoScrollMargin(20)
  
  
        # setting word wrap property
        list_widget.setWordWrap(True)
  
        # creating a label
        label = QLabel("GeesforGeeks", self)
  
        # setting geometry to the label
        label.setGeometry(230, 80, 280, 80)
  
        # making label multi line
        label.setWordWrap(True)
  
        # getting auto scroll margin
        value = list_widget.autoScrollMargin()
  
        # setting text to the label
        label.setText("Auto Scroll Margin : " + str(value))
  
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出：