86 lines
2.4 KiB
Python
86 lines
2.4 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Created on 2020/6/11
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@author: Irony
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@site: https://pyqt.site , https://github.com/PyQt5
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@email: 892768447@qq.com
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@file:
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@description:
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"""
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from time import sleep
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try:
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from PyQt5.QtCore import Qt
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from PyQt5.QtGui import QMovie
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from PyQt5.QtWidgets import QApplication, QSplashScreen, QWidget
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except ImportError:
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from PySide2.QtCore import Qt
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from PySide2.QtGui import QMovie
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from PySide2.QtWidgets import QApplication, QSplashScreen, QWidget
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class GifSplashScreen(QSplashScreen):
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def __init__(self, *args, **kwargs):
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super(GifSplashScreen, self).__init__(*args, **kwargs)
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self.movie = QMovie('Data/splash.gif')
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self.movie.frameChanged.connect(self.onFrameChanged)
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self.movie.start()
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def onFrameChanged(self, _):
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self.setPixmap(self.movie.currentPixmap())
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def finish(self, widget):
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self.movie.stop()
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super(GifSplashScreen, self).finish(widget)
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class BusyWindow(QWidget):
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def __init__(self, *args, **kwargs):
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super(BusyWindow, self).__init__(*args, **kwargs)
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# 模拟耗时操作，一般来说耗时的加载数据应该放到线程
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for i in range(5):
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sleep(1)
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splash.showMessage('加载进度: %d' % i, Qt.AlignHCenter | Qt.AlignBottom, Qt.white)
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QApplication.instance().processEvents()
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splash.showMessage('初始化完成', Qt.AlignHCenter | Qt.AlignBottom, Qt.white)
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splash.finish(self)
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if __name__ == '__main__':
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import sys
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import cgitb
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cgitb.enable(format='text')
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app = QApplication(sys.argv)
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global splash
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splash = GifSplashScreen()
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splash.show()
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w = BusyWindow()
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w.show()
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# 测试二
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# def createWindow():
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# app.w = QWidget()
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# # 模拟初始5秒后再显示
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# splash.showMessage('等待界面显示', Qt.AlignHCenter | Qt.AlignBottom, Qt.white)
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# QTimer.singleShot(3000, lambda: (
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# splash.showMessage('初始化完成', Qt.AlignHCenter | Qt.AlignBottom, Qt.white), app.w.show(),
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# splash.finish(app.w)))
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# 模拟耗时5秒。但是不能用sleep
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# 可以使用子线程加载耗时的数据
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# 主线程中循环设置UI可以配合QApplication.instance().processEvents()
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# QTimer.singleShot(3000, createWindow)
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splash.showMessage('等待创建界面', Qt.AlignHCenter | Qt.AlignBottom, Qt.white)
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sys.exit(app.exec_())
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