基于 tkinter Button 实现的可以闪烁的按钮

最近更新于 2025-06-09 09:27

blinkbutton.py

import tkinter as tk

class BlinkingButton(tk.Button):
    def __init__(self, master=None, blinkColor="red", blinkInterval=500, **kwargs):
        """
        闪烁按钮

        Args:
            master: 父组件
            blinkColor: 闪烁颜色
            blinkInterval: 闪烁周期（毫秒）
            kwargs: 其它Button属性
        """
        super().__init__(master, **kwargs)
        self.master = master
        self._blinkColor = blinkColor
        self._blinkInterval = blinkInterval
        self._normalBg = self["bg"] if "bg" in kwargs else self.cget("bg")
        self._blinking = False
        self._blinkState = False

    def startBlinking(self):
        if not self._blinking:
            self._blinking = True
            self._blink()

    def stopBlinking(self):
        self._blinking = False
        self.configure(bg=self._normalBg)

    def _blink(self):
        if not self._blinking:
            return

        new_color = self._blinkColor if not self._blinkState else self._normalBg
        self.configure(bg=new_color)
        self._blinkState = not self._blinkState

        self.after(self._blinkInterval, self._blink)

class App(tk.Frame):
    def __init__(self, master):
        super().__init__(master)
        self.master = master
        self.pack()

    def _onChangeButtonText(self):
        buttonText = self.blinkingButton['text']
        if buttonText == "开始闪烁":
            self.blinkingButton.startBlinking()
            self.blinkingButton.config(text="停止闪烁")
        else:
            self.blinkingButton.stopBlinking()
            self.blinkingButton.config(text="开始闪烁")

    def createWidgets(self):
        self.blinkingButton = BlinkingButton(self, 'red', 500, text='开始闪烁', command=self._onChangeButtonText)
        self.blinkingButton.pack()

# 示例程序
if __name__ == "__main__":
    root = tk.Tk()
    root.title("闪烁按钮示例")
    root.geometry("300x50")
    app = App(root)
    app.createWidgets()
    root.mainloop()