如何在PySimpleGUI中点击后禁用Start update按钮？附代码求助

Got it, let's fix that duplicate click problem for your updater app. The key is to disable the button as soon as it's clicked, then re-enable it once the task finishes or the user cancels the process. We'll also make sure the window stays responsive while the task runs.

Here's your modified code:

import PySimpleGUI as sg
import time

mylist = ["task 1", "task 2", "task 3", "task 4"]
progressbar = [[sg.ProgressBar(len(mylist), orientation='h', size=(51, 10), key='progressbar')]]
outputwin = [[sg.Output(size=(78,20))]]
layout = [
    [sg.Frame('Progress', layout=progressbar)],
    [sg.Frame('Output', layout=outputwin)],
    [sg.Submit('Start update'), sg.Cancel()]
]
window = sg.Window('Assistant updater', layout)
progress_bar = window['progressbar']

while True:
    event, values = window.read(timeout=10)
    if event == 'Cancel' or event is None:
        break
    elif event == 'Start update':
        # Disable the button immediately to prevent duplicate clicks
        window['Start update'].update(disabled=True)
        
        for i, item in enumerate(mylist):
            print(item)
            if item == "task 2":  # Adjust this condition to match your actual use case
                print('New line started')
            time.sleep(1)
            progress_bar.UpdateBar(i + 1)
            
            # Check for Cancel event during the task to keep window responsive
            event, values = window.read(timeout=10)
            if event == 'Cancel' or event is None:
                break
        
        # Re-enable the button once task is done or canceled
        window['Start update'].update(disabled=False)

window.close()

Key Changes Explained: #

• Disable on click: Right when the "Start update" event triggers, we use window['Start update'].update(disabled=True) to gray out the button so it can't be clicked again mid-task.
• Keep window responsive: Inside the task loop, we add a window.read(timeout=10) call. This lets the app check for the Cancel event (or window close) while the task runs, so the window doesn't freeze up.
• Re-enable after task: No matter if the task finishes normally or gets canceled, we re-enable the button at the end so the user can run the task again if needed.

内容的提问来源于stack exchange，提问作者Sashank