Pyqt 以OOP方式动画的效果改变自身窗体大小

 

 代码：

 1 # -*- coding:utf8 -*-

 2 from PyQt4.QtGui import *

 3 from PyQt4.QtCore import *

 4 import sys

 5 

 6 class ani(QWidget):

 7     def __init__(self):

 8         super(ani, self).__init__()

 9         self.OrigHeight = 50

10         self.ChangeHeight = 150

11         self.setGeometry(QRect(500, 400, 150, self.OrigHeight))  # 在X=500， Y=400 ， Length=150 ,   Height=50

12         self.btn = QPushButton(u'展开', self)

13         self.btn.setGeometry(10, 10, 60, 35)

14         self.machine = QStateMachine()

15         self.connect(self.btn, SIGNAL('clicked()'), self.change)

16 

17     # 动画效果修改窗体大小

18     def change(self):

19         CurrentHeight = self.height()

20         if self.OrigHeight == CurrentHeight:

21             startHeight = self.OrigHeight

22             endHeight = self.ChangeHeight

23             self.btn.setText(u'收缩')

24         else:

25             startHeight = self.ChangeHeight

26             endHeight = self.OrigHeight

27             self.btn.setText(u'展开')

28         self.animation = QPropertyAnimation(window, 'geometry')

29         self.animation.setDuration(800)

30         self.animation.setStartValue(QRect(500, 400, 150, startHeight))

31         self.animation.setEndValue(QRect(500, 400, 150, endHeight))

32         self.animation.start()

33 

34 

35 

36 if __name__ == '__main__':

37     app = QApplication(sys.argv)

38     window = ani()

39     window.show()

40     sys.exit(app.exec_())

 效果：