QtThreading

Author: 892768447

.settings/org.eclipse.core.resources.prefs

@@ -9,6 +9,7 @@ encoding//Demo/Lib/FramelessWindow.py=utf-8
 encoding//Demo/NativeEvent.py=utf-8
 encoding//Demo/Notification.py=utf-8
 encoding//Demo/ProbeWindow.py=utf-8
+encoding//Demo/QtThreading.py=utf-8
 encoding//Demo/RestartWindow.py=utf-8
 encoding//Demo/SharedMemory.py=utf-8
 encoding//Demo/SingleApplication.py=utf-8

Demo/QtThreading.py

@@ -0,0 +1,70 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Created on 2019年3月8日
+@author: Irony
+@site: https://pyqt5.com https://github.com/892768447
+@email: 892768447@qq.com
+@file: Threading.QtThreading
+@description: 
+"""
+from threading import Thread
+from time import sleep
+
+from PyQt5.QtCore import QObject, pyqtSignal, QTimer, Qt
+from PyQt5.QtWidgets import QWidget, QVBoxLayout, QProgressBar
+
+
+__Author__ = """By: Irony
+QQ: 892768447
+Email: 892768447@qq.com"""
+__Copyright__ = 'Copyright (c) 2019 Irony'
+__Version__ = 1.0
+
+
+class _Signals(QObject):
+
+    updateProgress = pyqtSignal(int)
+
+
+Signals = _Signals()
+
+
+class UpdateThread(Thread):
+
+    def run(self):
+        self.i = 0
+        for i in range(101):
+            self.i += 1
+            Signals.updateProgress.emit(i)
+            sleep(1)
+        self.i = 0
+        Signals.updateProgress.emit(i)
+
+
+class Window(QWidget):
+
+    def __init__(self, *args, **kwargs):
+        super(Window, self).__init__(*args, **kwargs)
+        self.resize(400, 400)
+        layout = QVBoxLayout(self)
+        self.progressBar = QProgressBar(self)
+        layout.addWidget(self.progressBar)
+        Signals.updateProgress.connect(
+            self.progressBar.setValue, type=Qt.QueuedConnection)
+
+        QTimer.singleShot(2000, self.doStart)
+
+    def doStart(self):
+        self.updateThread = UpdateThread(daemon=True)
+        self.updateThread.start()
+
+
+if __name__ == '__main__':
+    import sys
+    from PyQt5.QtWidgets import QApplication
+    app = QApplication(sys.argv)
+    w = Window()
+    w.show()
+    sys.exit(app.exec_())

Demo/README.md

@@ -138,4 +138,11 @@ PyQt 结合 Opencv 进行人脸检测；
   3. [dlib-19.4.0.win32-py3.5.exe](Data/dlib-19.4.0.win32-py3.5.exe)
 4. [shape-predictor-68-face-landmarks.dat.bz2](http://dlib.net/files/shape_predictor_68_face_landmarks.dat.bz2)
 
-![FacePoints](ScreenShot/FacePoints.png)
+![FacePoints](ScreenShot/FacePoints.png)
+
+## 16、使用Threading
+[运行  QtThreading.py](QtThreading.py)
+
+在PyQt中使用Theading线程
+
+![QtThreading](ScreenShot/QtThreading.gif)