[英]pyqt5 - How to add value to QComboBox fromfunction
我嘗試使用“ activated.connect()”方法從函數“ get_devices”將項添加到QComboBox(代碼中的deviceBox),但是QComboBox為空。 我在哪里弄錯了?
#!/usr/bin/env python3
from PyQt5.QtWidgets import QApplication, QMainWindow, QMessageBox, QFileDialog
from PyQt5.QtCore import pyqtSignal, pyqtSlot
from mainwindow import *
import sys
import pyudev
class MainProg (QMainWindow, Ui_MainWindow):
file_open = pyqtSignal(str, str)
def __init__(self, window):
QMainWindow.__init__(self)
self.setupUi(window)
self.openisoButton.clicked.connect(self.openISO)
self.aboutButton.clicked.connect(self.about)
self.deviceBox.activated.connect(self.get_devices)
def get_devices(self):
devices = []
context = pyudev.Context()
for device in context.list_devices(subsystem='block', ID_BUS="usb"):
devices.append(str(device['DEVNAME']))
self.deviceBox.addItems(devices)
QCombBox
對象具有一個名為addItem
,該方法可以將項目追加到QCombBox
項目列表中。
因此您需要在最后一行中修改代碼。
for device in devices: self.deviceBox.addItem(device)
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