我创建一个简单的UI,将其转换为Python代码。我搜索了任何检测更改窗口大小的方法。
这是生成的代码:
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def onResize(event):
print(event)
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.setWindowTitle("MainWindow")
MainWindow.resize(200, 200)
self.centralwidget =QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
MainWindow.setCentralWidget(self.centralwidget)
MainWindow.resized.connect(self.someFunction)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
if __name__ == "__main__":
importsys
app =QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui =Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
我发现了一个类似的问题QWidget调整大小信号?这个教程用来处理sizethat推荐的覆盖重新调整QMainWindow的事件方法。但他们中的任何一个都无法解决我的问题。是否存在检测窗口大小调整的功能:
回答1 默认情况下没有这样的信号,但你可以创建调整大小的信号,我们
在resizeEventfunction中发出它。
For Example:
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.setWindowTitle("MainWindow")
MainWindow.resize(200, 200)
self.centralwidget =QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
MainWindow.setCentralWidget(self.centralwidget)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
class Window(QtWidgets.QMainWindow):
resized =QtCore.pyqtSignal()
def __init__(self, parent=None):
super(Window, self).__init__(parent=parent)
ui =Ui_MainWindow()
ui.setupUi(self)
self.resized.connect(self.someFunction)
def resizeEvent(self, event):
self.resized.emit()
return super(Window, self).resizeEvent(event)
def someFunction(self):
print("someFunction")
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
w =Window()
w.show()
sys.exit(app.exec_())
回答2:
You can override the resizeEvent by
def resizeEvent(self, newSize): #do code here
回答3:
import sys
from PyQt5.QtWidgetsimport *
def onResize(event):
print(event)
if __name__ =="__main__":
app = QApplication(sys.argv)
widget = QPushButton('Test')
widget.resizeEvent = onResize
widget.resize(640,480)
widget.show()
sys.exit(app.exec_())
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