Question

如果我的结构看起来像这样......

from PyQt4 import QtCore, QtGui
from PyQt4.QtGui import QDialog,QImage,QPixmap
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from appView import Ui_View 
# this is designer .ui file converted to .py via pyuic4 cmd

class AppWindow(QDialog, Ui_View):
    def __init__(self):
        QDialog.__init__(self)
        # Set up the user interface from Designer.
        self.setupUi(self)
        self.setupEvents()
    def setupEvents():
        print ("setting up events")

def onResize(event):
        print event
def main():
    app = QtGui.QApplication(sys.argv)
    myapp = AppWindow()
    myapp.resizeEvent = onResize
    myapp.show()
    sys.exit(app.exec_())

if __name__ == '__main__':
    main()

问题：

如何从PyQt获取应用程序加载完成事件 AppWindow类，以便我知道它的构造函数已经运行完了？
如何在AppWindow课程中获取应用程序调整大小事件？我能得到这在main函数中并调整它，但是如果AppWindow类能够倾听和处理它：最好的方法是什么？应该理想情况下如上所述完成了吗？

Answer 1

解答：

只需使用QApplication启动一次性定时器即可在AppWindows上调用正确的方法。
只需将onResize的代码放入AppWindows.resizeEvent。

示例：

from PyQt4 import QtCore, QtGui
from PyQt4.QtGui import QDialog,QImage,QPixmap
from PyQt4.QtCore import *
from PyQt4.QtGui import *
import sys

class AppWindow(QDialog):

    def __init__(self):
        QDialog.__init__(self)
        # Set up the user interface from Designer.
        #self.setupUi(self)
        self.setupEvents()

    def setupEvents(self):
        print ("setting up events")

    def resizeEvent(self,event):
        print event

    def onQApplicationStarted(self):
        print 'started'

def main():
    app = QtGui.QApplication(sys.argv)
    myapp = AppWindow()
    myapp.show()
    t = QtCore.QTimer()
    t.singleShot(0,myapp.onQApplicationStarted)
    sys.exit(app.exec_())

if __name__ == '__main__':
    main()

PyQt应用程序加载完成事件

1 个答案: