我正在尝试整合一个简单的小部件,其中焦点自动放入QLineEdit小部件(它用于条形码扫描仪输入,我不希望最终用户必须单击小部件)
相关代码如下所示:
from qtmodern import styles, windows
from qtpy import QtGui, QtCore
from qtpy.QtWidgets import *
from qtpy.QtCore import Qt
class MyGui(QWidget):
def __init__(self, parent=None):
super(MyGui, self).__init__(parent)
layout = QVBoxLayout()
self.lineEdit = QLineEdit(self)
self.lineEdit.setPlaceholderText('foobar')
self.lineEdit.setFocusPolicy(Qt.StrongFocus)
self.lineEdit.setFocus()
layout.addWidget(self.lineEdit)
self.setLayout(layout)
self.show()
def main():
app = QApplication([])
styles.dark(app)
g = windows.ModernWindow(MyGui())
g.resize(350,100)
location = (50, 100)
g.move(location[0], location[1])
g.setWindowTitle('SmallTest')
g.show()
app.exec_()
if __name__ == '__main__':
main()
它并不想把重点放在lineEdit小部件上。我猜测我错过了一些非常明显的东西,但是我一直在寻找它,并且还没有找到它,但还没有发现它。
谢谢!
答案 0 :(得分:4)
显示小部件后,您必须使用setFocus()
。
from qtmodern import styles, windows
from qtpy import QtGui, QtCore
from qtpy.QtWidgets import *
from qtpy.QtCore import Qt
class MyGui(QWidget):
def __init__(self, parent=None):
super(MyGui, self).__init__(parent)
layout = QVBoxLayout(self)
self.lineEdit = QLineEdit(self)
self.lineEdit.setPlaceholderText('foobar')
self.lineEdit.setFocusPolicy(Qt.StrongFocus)
layout.addWidget(self.lineEdit)
def main():
app = QApplication([])
styles.dark(app)
gui = MyGui()
g = windows.ModernWindow(gui)
g.resize(350,100)
location = (50, 100)
g.move(*location)
g.setWindowTitle('SmallTest')
g.show()
gui.lineEdit.setFocus()
app.exec_()
if __name__ == '__main__':
main()