当其他线程在 Python 中使用 Tk 完成时，如何立即关闭加载屏幕？
我有一个使用 Tkinter 的 Python GUI。我必须通过 SSH 连接到另一个地方才能获取数据。我启动了一个新线程来执行此操作，这样 GUI 就不会挂起。在此期间，我想弹出一个屏幕，让用户知道它正在加载。一旦程序完成获取数据，我想关闭加载屏幕。我必须做什么才能让我的主循环识别出线程已完成？我尝试使用该线程关闭主循环中存在的加载屏幕，但后来我发现这不起作用。
我见过一些不使用 GUI 的生产者消费者模型，它们有 while 循环。但这对我没有帮助。我也不想下载和安装其他软件包，但导入就可以了。感谢您的帮助！
I have a Python GUI that uses Tkinter. I have to SSH into another place to get data. I start a new thread to do this so that the GUI doesn't hang. During this time, I want to pop up a screen that lets the user know it is loading. Once the program is finished getting the data, I want to close the loading screen. What must I do to have my main loop recognize that the thread is done? I've tried to use that thread to close the loading screen that exists in the main loop, but then I discovered that doesn't work.
I have seen some producer consumer models that don't use GUIs, and they have while loops. This doesn't help me though. I also don't want to download and install other packages, but imports are ok. Thank you for your help!
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让您的线程在完成时设置一个标志。让 GUI 定期检查该标志并在设置后关闭该窗口。
您可以通过创建一个检查该标志的函数来检查该标志，如果未设置它，则使用
after使其自身在几百毫秒后再次运行。线程退出后窗口不会立即消失，但只要延迟不超过几百毫秒，用户就永远不会注意到。Have your thread set a flag when it is done. Have the GUI periodically check for that flag and dismiss the window when it is set.
You can check for the flag by creating a function that checks for the flag, and if it's not set it uses
afterto have itself run again a few hundred ms later. The window won't go away immediately after the thread exits, but as long as the lag isn't more than a couple hundred ms the user will never notice.