62 lines
1.7 KiB
Python
62 lines
1.7 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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from PyQt5.QtCore import QPropertyAnimation
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from PyQt5.QtWidgets import QWidget, QVBoxLayout, QPushButton
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# Created on 2018年6月14日
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# author: Irony
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# site: https://pyqt5.com, https://github.com/892768447
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# email: 892768447@qq.com
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# file: 动画特效.淡入淡出
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# description:
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__Author__ = """By: Irony
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QQ: 892768447
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Email: 892768447@qq.com"""
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__Copyright__ = 'Copyright (c) 2018 Irony'
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__Version__ = 1.0
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class Window(QWidget):
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def __init__(self, *args, **kwargs):
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super(Window, self).__init__(*args, **kwargs)
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self.resize(400, 400)
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layout = QVBoxLayout(self)
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layout.addWidget(QPushButton('退出', self, clicked=self.doClose))
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# 窗口透明度动画类
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self.animation = QPropertyAnimation(self, b'windowOpacity')
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self.animation.setDuration(1000) # 持续时间1秒
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# 执行淡入
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self.doShow()
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def doShow(self):
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try:
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# 尝试先取消动画完成后关闭窗口的信号
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self.animation.finished.disconnect(self.close)
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except:
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pass
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self.animation.stop()
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# 透明度范围从0逐渐增加到1
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self.animation.setStartValue(0)
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self.animation.setEndValue(1)
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self.animation.start()
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def doClose(self):
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self.animation.stop()
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self.animation.finished.connect(self.close) # 动画完成则关闭窗口
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# 透明度范围从1逐渐减少到0
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self.animation.setStartValue(1)
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self.animation.setEndValue(0)
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self.animation.start()
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if __name__ == '__main__':
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import sys
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from PyQt5.QtWidgets import QApplication
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app = QApplication(sys.argv)
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w = Window()
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w.show()
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sys.exit(app.exec_())
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