QLineEdit边框闪烁
源码
from PyQt5 import QtCore
from PyQt5.QtCore import QPropertyAnimation, pyqtProperty
from PyQt5.QtWidgets import QMainWindow, QApplication, QLineEdit
from PyQt5 import QtWidgetsclass NewLineEdit(QLineEdit):
def __init__(self, parent=None):
super(NewLineEdit, self).__init__(parent)def _set_color(self, value):
color = 'border: 1px solid rgba(255, 0, 0, %s);
' % value
self.setStyleSheet(color)color = pyqtProperty(int, fset=_set_color)class Form(QMainWindow):
def __init__(self):
super(Form, self).__init__()
self.setupUi()self.pushButton.clicked.connect(self.pushButton_clicked)def pushButton_clicked(self):
self.animation = QPropertyAnimation(self.lineEdit, b'color')
self.animation.setDuration(200)
self.animation.setLoopCount(3)
self.animation.setStartValue(255)
self.animation.setKeyValueAt(0.5, 0)
self.animation.setEndValue(255)
self.animation.start()def setupUi(self):
self.resize(400, 300)
self.centralwidget = QtWidgets.QWidget(self)
self.lineEdit = NewLineEdit(self.centralwidget)
self.lineEdit.setGeometry(QtCore.QRect(160, 100, 113, 20))
self.pushButton = QtWidgets.QPushButton('pushbutton', self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(50, 100, 75, 23))
self.setCentralWidget(self.centralwidget)if __name__ == '__main__':
import sysapp = QApplication(sys.argv)
form = Form()
form.show()
app.exec_()截图 【QLineEdit边框闪烁】
文章图片
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