PySimpleGUI开发的消息群发工具点击submit后冻结，Spin组件箭头无效应如何解决

Spin调节失效问题 #

sg.Spin的首个入参要求传入可选值的序列，你直接传入单个数字0不符合参数要求，修改为指定取值范围即可生效，示例：

# 消息数量Spin，取值范围1-200，默认值1
sg.Spin(values=[i for i in range(1, 201)], initial_value=1, key="spammer")
# 冷却时间Spin，取值范围0-10，默认值0
sg.Spin(values=[i for i in range(0, 11)], initial_value=0, key="cooldown")

点击submit后程序冻结问题 #

PySimpleGUI的事件循环是单线程运行的，你在submit的回调逻辑里直接写了time.sleep和群发消息的循环逻辑，会阻塞主事件循环，导致界面无法响应操作。解决方案是将群发消息的逻辑放到独立子线程中运行，不要占用主线程资源。

其他基础错误修正 #

• 布局嵌套错误：所有layout的定义存在多层多余的方括号嵌套，会导致界面排版异常，需要删除多余的嵌套层级。
• 窗口实例化逻辑错误：你提前全局实例化了所有子窗口，窗口关闭后再次触发会报错，应该在触发对应功能时再创建窗口实例。
• Stop按钮逻辑失效：原有代码中Stop按钮的判断位置错误，根本无法触发，需要配合线程终止标识实现停止功能。

修正后完整代码 #

import time
import threading
import PySimpleGUI as sg
import pyautogui as pyautogui

# 全局标识，控制群发任务是否运行
spammer_running = False

def spammer_task(msg_count, cooldown, msg, final_msg):
    global spammer_running
    spammer_running = True
    time.sleep(5)
    for xi in range(msg_count):
        if not spammer_running:
            break
        pyautogui.typewrite(msg)
        time.sleep(cooldown)
        pyautogui.press('enter')
        print(xi)
    if spammer_running and final_msg.strip():
        pyautogui.typewrite(final_msg)
        pyautogui.press('enter')
    spammer_running = False

# 主窗口布局
main_layout = [
    [
        sg.Text("What do you want to do?"),
        sg.Button("Spammer"), sg.Button("Encrypter"), sg.Button("Decrypter"), sg.Button("Password generator"),
        sg.Button("Exit")
    ]
]
main_window = sg.Window("Multifunctiontool", main_layout)

while True:
    event, values = main_window.read()
    if event == "Exit" or event == sg.WIN_CLOSED:
        break
    if event == "Spammer":
        # 触发Spammer功能时再创建对应窗口
        spammer_layout = [
            [sg.Text("Press Start to start the bot.")],
            [sg.Text("Press Stop to stop the bot.")],
            [sg.Button("Start"), sg.Button("Stop")]
        ]
        spammer_window = sg.Window("spammer", spammer_layout)
        while True:
            s_event, s_values = spammer_window.read()
            if s_event == "Stop" or s_event == sg.WIN_CLOSED:
                spammer_running = False
                spammer_window.close()
                break
            if s_event == "Start":
                spammer_config_layout = [
                    [sg.Text("How many messages do you want to send?"), sg.Spin(values=[i for i in range(1, 201)], initial_value=1, key="spammer")],
                    [sg.Text("How long ist the cooldown? if not there just leave on 0"), sg.Spin(values=[i for i in range(0, 11)], initial_value=0, key="cooldown")],
                    [sg.Text("What is your message?"), sg.Input(key="message")],
                    [sg.Text("Do you want to leave a final message(Write down your message, if no just leave blank)?"), sg.Input(key="final_message")],
                    [sg.Button("submit"), sg.Button("Exit")]
                ]
                config_window = sg.Window("spammer config", spammer_config_layout, force_toplevel=True)
                c_event, c_values = config_window.read()
                if c_event == "Exit" or c_event == sg.WIN_CLOSED:
                    config_window.close()
                    continue
                if c_event == "submit":
                    try:
                        msg_count = int(c_values['spammer'])
                        cooldown = int(c_values['cooldown'])
                        msg = c_values['message']
                        final_msg = c_values['final_message']
                    except:
                        tip_layout = [
                            [sg.Text("please enter a valid parameter")],
                            [sg.Button("Continue"), sg.Button("Exit")]
                        ]
                        tip_window = sg.Window("tip", tip_layout)
                        t_event, t_values = tip_window.read()
                        tip_window.close()
                        if t_event == "Exit":
                            config_window.close()
                            spammer_window.close()
                            break
                        else:
                            config_window.close()
                            continue
                    # 启动子线程跑群发任务
                    threading.Thread(target=spammer_task, args=(msg_count, cooldown, msg, final_msg), daemon=True).start()
                    sg.popup("任务将在5秒后启动，可点击Stop按钮终止任务")
                    config_window.close()

main_window.close()

内容的提问来源于stack exchange，提问作者Bz Shifu