PySide6 GUI 编程（6）：QPushButton的使用

原创

bowenerchen

修改于 2024-08-23 16:26:07

1452

修改于 2024-08-23 16:26:07

文章被收录于专栏：编码视界

基础使用

直接实例化 QPushButton

import sys

from PySide6.QtWidgets import QApplication, QPushButton

app = QApplication(sys.argv)

window = QPushButton("Push Me 这是一个按钮")
window.setToolTip('Tip Info 这是按钮的提示信息')
# window.setText('Button Text 按钮展示的信息')
window.show()

app.exec()

从 QMainWindow 继承

from PySide6.QtWidgets import QApplication, QMainWindow, QPushButton


class MyPushButton(QMainWindow):
    def __init__(self):
        super().__init__()
        QPushButton('MyPushButton', self).setToolTip('我的自定义 button 实例')


if __name__ == '__main__':
    app = QApplication()
    button = MyPushButton()
    button.show()
    app.exec()

使用信号与槽对按钮的点击动作进行响应

实现代码

import sys

from PySide6.QtWidgets import QApplication, QMainWindow, QPushButton


def the_button_was_toggled(checked: bool):
    print("toggle, Checked?", checked)


class MyPushButton(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle('带有按钮的窗口')
        self.button = QPushButton('初始状态 我的按钮')
        self.button.setCheckable(True)
        self.button.setFixedWidth(500)
        self.button.setFixedHeight(200)
        self.button.clicked.connect(self.the_button_was_clicked)
        self.button.released.connect(self.the_button_was_released)
        self.button.pressed.connect(self.the_button_was_pressed)
        self.button.toggled.connect(the_button_was_toggled)
        self.setFixedWidth(800)
        self.setFixedHeight(400)
        self.setCentralWidget(self.button)
        self.pressed_times = 0
        self.released_times = 0
        self.finish_clicked = 0

    def the_button_was_clicked(self):
        print('clicked!')
        self.finish_clicked += 1
        self.button.setText('恢复成我的按钮, 完成点击次数:{}'.format(self.finish_clicked))

    def the_button_was_released(self):
        self.released_times += 1
        print('released times={}'.format(self.released_times))

    def the_button_was_pressed(self):
        print('pressed')
        self.pressed_times += 1
        self.button.setText('按钮被按下, 按下次数:{}'.format(self.pressed_times))


if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MyPushButton()
    window.show()
    app.exec()