52 lines
1.6 KiB
Python
52 lines
1.6 KiB
Python
from PySide6.QtCore import QThread, Signal, Slot
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from PySide6.QtWidgets import QApplication, QDialog, QLabel, QVBoxLayout, QPushButton
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import sys
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import time
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# 定义子线程类
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class WorkerThread(QThread):
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# 创建信号，子线程处理完成后通知主线程弹窗
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show_dialog_signal = Signal(str)
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def run(self):
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# 模拟子线程的工作
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time.sleep(3) # 假设任务执行需要 3 秒钟
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self.show_dialog_signal.emit("任务完成，弹出对话框") # 发出信号，通知主线程弹窗
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print("子线程")
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# 定义主窗口类
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class MainWindow(QDialog):
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def __init__(self):
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super().__init__()
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self.setWindowTitle("主窗口")
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self.setGeometry(100, 100, 300, 200)
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self.button = QPushButton("开始任务", self)
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self.button.clicked.connect(self.start_task)
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layout = QVBoxLayout(self)
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layout.addWidget(self.button)
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@Slot(str)
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def show_dialog(self, message):
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# 接收到信号后显示弹窗
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dialog = QDialog(self)
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dialog.setWindowTitle("子线程通知")
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label = QLabel(message, dialog)
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dialog_layout = QVBoxLayout(dialog)
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dialog_layout.addWidget(label)
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dialog.exec()
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def start_task(self):
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# 创建并启动子线程
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self.thread = WorkerThread()
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self.thread.show_dialog_signal.connect(self.show_dialog) # 连接信号到主线程的槽函数
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self.thread.start()
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# 创建应用程序
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app = QApplication(sys.argv)
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window = MainWindow()
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window.show()
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sys.exit(app.exec())
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