python+pyqt实现右下角弹出框

self.desktop=QDesktopWidget() 
self.move((self.desktop.availableGeometry().width()-self.width()),self.desktop.availableGeometry().height()) #初始化位置到右下角 
self.showAnimation() 

#弹出动画 
def showAnimation(self): 
  #显示弹出框动画 
  self.animation=QPropertyAnimation(self,"pos") 
  self.animation.setDuration(1000) 
  self.animation.setStartValue(QPoint(self.x(),self.y())) 
  self.animation.setEndValue(QPoint((self.desktop.availableGeometry().width()-self.width()),(self.desktop.availableGeometry().height()-self.height()+self.SHADOW_WIDTH))) 
  self.animation.start() 
 
  #设置弹出框1秒弹出，然后渐隐 
  self.remainTimer=QTimer() 
  self.connect(self.remainTimer,SIGNAL("timeout()"),self,SLOT("closeAnimation()")) 
  self.remainTimer.start(10000) #定时器10秒 
#关闭动画 
@pyqtSlot() 
def closeAnimation(self): 
  #清除Timer和信号槽 
  self.remainTimer.stop() 
  self.disconnect(self.remainTimer,SIGNAL("timeout()"),self,SLOT("closeAnimation()")) 
  self.remainTimer.deleteLater() 
  self.remainTimer=None 
  #弹出框渐隐 
  self.animation =QPropertyAnimation(self,"windowOpacity") 
  self.animation.setDuration(1000) 
  self.animation.setStartValue(1) 
  self.animation.setEndValue(0) 
  self.animation.start() 
  #动画完成后清理 
  self.connect(self.animation,SIGNAL("finished()"),self,SLOT("clearAll()")) 
 
#清理及退出 
@pyqtSlot() 
def clearAll(self): 
  self.disconnect(self.animation,SIGNAL("finished()"),self,SLOT("clearAll()")) 
  sys.exit()    #退出