QSequentialAnimationGroup继承于QAbstractAnimation
按顺序执行动画
该类就是用来按照动画添加顺序来执行动画的。我们只用实例化该类，然后通过调用addAnimation()或者insertAnimation()方法把各个动画添加进去就可以了
import sys
from PyQt5.QtGui import QPixmap
from PyQt5.QtCore import QPropertyAnimation, QSequentialAnimationGroup, QRect
from PyQt5.QtWidgets import QApplication, QWidget, QLabel class Demo(QWidget):
def __init__(self):
super(Demo, self).__init__()
self.resize(600, 600) self.plane = QLabel(self)
self.plane.resize(50, 50)
self.plane.setPixmap(QPixmap(r'D:\ss\ssss\images\plane.png').scaled(self.plane.size())) self.animation1 = QPropertyAnimation(self.plane, b'geometry') #创建一个属性动画对象
#动画目标标签 位置和大小
self.animation1.setDuration(2000)
self.animation1.setStartValue(QRect(300, 500, 50, 50))
self.animation1.setEndValue(QRect(200, 400, 50, 50))
self.animation1.setLoopCount(1) self.animation2 = QPropertyAnimation(self.plane, b'geometry')
self.animation2.setDuration(2000)
self.animation2.setStartValue(QRect(200, 400, 50, 50))
self.animation2.setEndValue(QRect(400, 300, 50, 50))
self.animation2.setLoopCount(1) self.animation3 = QPropertyAnimation(self.plane, b'geometry')
self.animation3.setDuration(2000)
self.animation3.setStartValue(QRect(400, 300, 50, 50))
self.animation3.setEndValue(QRect(200, 200, 50, 50))
self.animation3.setLoopCount(1) self.animation_group = QSequentialAnimationGroup(self) #实例化一个串行动画
self.animation_group.addAnimation(self.animation1) #添加属性动画
self.animation_group.addPause(1000) #设置动画暂停时间
self.animation_group.addAnimation(self.animation2)
self.animation_group.addAnimation(self.animation3)
self.animation_group.start() #启动串行动画 if __name__ == '__main__':
app = QApplication(sys.argv)
demo = Demo()
demo.show()
sys.exit(app.exec_())