Qt第三十九章：属性动画

た入场券 2024-03-30 08:45 90阅读 0赞

import PySide6
    from PySide6.QtCore import QRect, QSize, QTimer, QPoint, Qt, QPropertyAnimation
    from PySide6.QtGui import QPixmap, QCursor, QIcon, QMouseEvent, QResizeEvent
    from PySide6.QtWidgets import QApplication, QDialog, QPushButton, QHBoxLayout, QLabel, QSizePolicy, QWidget, \
        QVBoxLayout, QSpacerItem
    
    class ExampleWidget(QWidget):
        def __init__(self, parent=None):
            super(ExampleWidget, self).__init__(parent)
            self.resize(400, 300)
            self.button = QPushButton(self)
            self.button.setGeometry(50, 200, 50, 30)
            self.button.setText("右鍵")
    
            # 动画(必须声明为QWidget的属性)
            self.animation = QPropertyAnimation(self.button, b'geometry')
            # 持续时间
            self.animation.setDuration(1000)
            # 重复次数
            self.animation.setLoopCount(30)
            # 速度曲线（弹性效果）
            self.animation.setEasingCurve(QEasingCurve.InOutElastic)
            # 开始时属性值
            self.animation.setStartValue(QRect(0, 200, 50, 30))
            # 过程
            self.animation.setKeyValueAt(0.2, QRect(50, 200, 50, 30))
            self.animation.setKeyValueAt(0.4, QRect(150, 100, 50, 30))
            self.animation.setKeyValueAt(0.6, QRect(250, 200, 50, 30))
            self.animation.setKeyValueAt(0.8, QRect(350, 200, 50, 30))
            # 结束时属性值
            self.animation.setEndValue(QRect(400, 200, 50, 30))
            # 开始
            self.animation.start()
            # 动画结束后，继续执行其他函数
            self.animation.finished.connect(lambda: print(1))
    
            # 涉及多个属性动画同时执行，可以放到一个组中，然后执行组
            self.group = QParallelAnimationGroup()
            self.group.addAnimation(self.animation)
            # 添加多个
            self.group.start()
    
    
    if __name__ == '__main__':
        app = QApplication([])
        main = ExampleWidget()
        main.show()
        app.exec()