25. PyQt6 QProgressBar
2023-10-17 python 438
import sys from PyQt6.QtWidgets import QApplication, QMainWindow, QProgressBar, QPushButton from PyQt6.QtGui import QGuiApplication from PyQt6.QtCore import QBasicTimer class App(QMainWindow): def __init__(self): super().__init__() self.step = None self.timer = None self.btn = None self.pbar = None self.initUI() def initUI(self): self.setWindowTitle("PyQt6 QProgressBar") self.pbar = QProgressBar(self) self.pbar.setGeometry(30, 40, 200, 25) self.btn = QPushButton("开始", self) self.btn.move(40, 80) self.btn.clicked.connect(self.doAction) self.timer = QBasicTimer() self.step = 0 self.setGeometry(100, 100, 400, 300) self.center() def timerEvent(self, e): if self.step > 100: self.timer.stop() self.btn.setText("完毕") return self.step = self.step + 1 self.pbar.setValue(self.step) def doAction(self): if self.timer.isActive(): self.timer.stop() self.btn.setText("开始") else: self.timer.start(100, self) self.btn.setText("结束") def center(self): qr = self.frameGeometry() cp = QGuiApplication.primaryScreen().availableGeometry().center() qr.moveCenter(cp) self.move(qr.topLeft()) if __name__ == "__main__": app = QApplication(sys.argv) cls_app = App() cls_app.show() sys.exit(app.exec())
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