pyqt4 - 如何从pyqt中的组框中获取选中的单选按钮

Question

我有一个带有一些单选按钮的组框。我如何知道哪个被检查了。

Answer 1

Another way is to use button groups. For example:

import sys
from PyQt4.QtGui import *
from PyQt4.QtCore import *

class MoodExample(QGroupBox):

    def __init__(self):
        super(MoodExample, self).__init__()

        # Create an array of radio buttons
        moods = [QRadioButton("Happy"), QRadioButton("Sad"), QRadioButton("Angry")]

        # Set a radio button to be checked by default
        moods[0].setChecked(True)

        # Radio buttons usually are in a vertical layout
        button_layout = QVBoxLayout()

        # Create a button group for radio buttons
        self.mood_button_group = QButtonGroup()

        for i in xrange(len(moods)):
            # Add each radio button to the button layout
            button_layout.addWidget(moods[i])
            # Add each radio button to the button group & give it an ID of i
            self.mood_button_group.addButton(moods[i], i)
            # Connect each radio button to a method to run when it's clicked
            self.connect(moods[i], SIGNAL("clicked()"), self.radio_button_clicked)

        # Set the layout of the group box to the button layout
        self.setLayout(button_layout)

    #Print out the ID & text of the checked radio button
    def radio_button_clicked(self):
        print(self.mood_button_group.checkedId())
        print(self.mood_button_group.checkedButton().text())

app = QApplication(sys.argv)
mood_example = MoodExample()
mood_example.show()
sys.exit(app.exec_())

I found more information at:

http://codeprogress.com/python/libraries/pyqt/showPyQTExample.php?index=387&key=QButtonGroupClick

http://www.pythonschool.net/pyqt/radio-button-widget/

Answer 2

您将需要遍历组框中的所有单选按钮并检查isChecked()每个单选框的属性。

例如：

radio1 = QtGui.QRadioButton("button 1")
radio2 = QtGui.QRadioButton("button 2")
radio3 = QtGui.QRadioButton("button 3")

for i in range(1,4):
    buttonname = "radio" + str(i)
    if buttonname.isChecked():
        print buttonname + "is Checked"

供参考，请查看http://pyqt.sourceforge.net/Docs/PyQt4/qradiobutton.html

Answer 3

我设法通过结合使用索引和循环来解决这个问题。

indexOfChecked = [self.ButtonGroup.buttons()[x].isChecked() for x in range(len(self.ButtonGroup.buttons()))].index(True)

Answer 4

    def izle(self):
        radios=["radio1","radio2","radio3","radio4"]

        for i in range(0,4):
            selected_radio = self.ui.findChild(QtGui.QRadioButton, self.radios[i])
            if selected_radio.isChecked():
                print selected_radio.objectName() + "is Checked"

Answer 5

您可以从所需的父级获取所有类的 chaild 对象。就像是

class MainWindow(QMainWindow, Ui_MainWindow):
    def __init__(self, parent=None, *args, **kwargs):
        super(MainWindow, self).__init__(*args, **kwargs)
        self.setupUi(self)
        self.show()

        print(self.getCheckedRbName(self.gbRadioButtonsGroup))

    def getCheckedRbName(self, rbParent: QWidget) -> str:
        for rb in rbParent.findChildren(QRadioButton):
            if rb.isChecked():
                return rb.objectName()

给你

#> 'rbThirdOption' is checked