xmengnet/PyQt
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

update splash add sleep demo

Browse source
This commit is contained in:
Irony 2020-11-20 09:53:09 +08:00
parent feb5a9eff1
commit e6821d219d
1 changed files with 31 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

41
QSplashScreen/GifSplashScreen.py
View file

@ -14,7 +14,9 @@ __Author__ = 'Irony'
__Copyright__ = 'Copyright (c) 2020' __Copyright__ = 'Copyright (c) 2020'
__Version__ = 'Version 1.0' __Version__ = 'Version 1.0'
from PyQt5.QtCore import QTimer, Qt from time import sleep
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QMovie from PyQt5.QtGui import QMovie
from PyQt5.QtWidgets import QApplication, QSplashScreen, QWidget from PyQt5.QtWidgets import QApplication, QSplashScreen, QWidget
@ -35,6 +37,20 @@ class GifSplashScreen(QSplashScreen):
super(GifSplashScreen, self).finish(widget) super(GifSplashScreen, self).finish(widget)
class BusyWindow(QWidget):
def __init__(self, *args, **kwargs):
super(BusyWindow, self).__init__(*args, **kwargs)
# 模拟耗时操作，一般来说耗时的加载数据应该放到线程
for i in range(5):
sleep(1)
splash.showMessage('加载进度: %d' % i, Qt.AlignHCenter | Qt.AlignBottom, Qt.white)
QApplication.instance().processEvents()
splash.showMessage('初始化完成', Qt.AlignHCenter | Qt.AlignBottom, Qt.white)
splash.finish(self)
if __name__ == '__main__': if __name__ == '__main__':
import sys import sys
import cgitb import cgitb
@ -42,23 +58,28 @@ if __name__ == '__main__':
cgitb.enable(1, None, 5, '') cgitb.enable(1, None, 5, '')
app = QApplication(sys.argv) app = QApplication(sys.argv)
global splash
splash = GifSplashScreen() splash = GifSplashScreen()
splash.show() splash.show()
w = BusyWindow()
w.show()
def createWindow(): # 测试二
app.w = QWidget() # def createWindow():
# 模拟初始5秒后再显示 # app.w = QWidget()
splash.showMessage('等待界面显示', Qt.AlignHCenter | Qt.AlignBottom, Qt.white) # # 模拟初始5秒后再显示
QTimer.singleShot(3000, lambda: ( # splash.showMessage('等待界面显示', Qt.AlignHCenter | Qt.AlignBottom, Qt.white)
splash.showMessage('初始化完成', Qt.AlignHCenter | Qt.AlignBottom, Qt.white), app.w.show(), # QTimer.singleShot(3000, lambda: (
splash.finish(app.w))) # splash.showMessage('初始化完成', Qt.AlignHCenter | Qt.AlignBottom, Qt.white), app.w.show(),
# splash.finish(app.w)))
# 模拟耗时5秒。但是不能用sleep # 模拟耗时5秒。但是不能用sleep
# 可以使用子线程加载耗时的数据 # 可以使用子线程加载耗时的数据
# 主线程中循环设置UI可以配合QApplication.instance().processEvents() # 主线程中循环设置UI可以配合QApplication.instance().processEvents()
# QTimer.singleShot(3000, createWindow)
splash.showMessage('等待创建界面', Qt.AlignHCenter | Qt.AlignBottom, Qt.white) splash.showMessage('等待创建界面', Qt.AlignHCenter | Qt.AlignBottom, Qt.white)
QTimer.singleShot(3000, createWindow)
sys.exit(app.exec_()) sys.exit(app.exec_())