Kivy 使网格中的按钮闪烁

Question

我为此尝试了多种不同的解决方案，但我没有想法。我是 Kivy 的新手，仍在学习。我正在构建一个非常基本的记忆游戏。我需要网格内的按钮按特定顺序闪烁。我相信我可以完成这项工作，但是我不知道如何让其中一个按钮闪烁。谁能指出我正确的方向？我知道我只需要它来改变颜色一秒钟然后变回来。

from kivy.app import App
from kivy.clock import Clock
from kivy.uix.button import Button
from kivy.uix.widget import Widget
from kivy.uix.gridlayout import GridLayout
from random import random
import time


class MemorizeGame(GridLayout):
    def __init__(self, **kwargs):
        super(MemorizeLayout, self).__init__(**kwargs)
        self.cols = 2

        #create buttons
        self.button1 = Button(text='', background_color=(0,0,1,1))
        self.button2 = Button(text='', background_color=(0,1,1,1))
        self.button3 = Button(text='', background_color=(1,0,1,1))
        self.button4 = Button(text='', background_color=(0,1,0,1))
        self.buttonList = [self.button1, self.button2, self.button3, self.button4]

        #add buttons to the screen
        for button in self.buttonList:
            self.add_widget(button)

    def blinkSquare(self):
        #logic to make a square blink

class MemorizeApp(App):

    def build(self):
        game= MemorizeGame()
        return game

if __name__ == "__main__":
    MemorizeApp().run()

Answer 1

这是一个使用 kivy 时钟的示例。

from kivy.app import App
from kivy.clock import Clock
from kivy.uix.button import Button
from kivy.uix.widget import Widget
from kivy.uix.gridlayout import GridLayout
from random import random
import time

from kivy.clock import Clock
from functools import partial

def set_color(button, color, *args):
    button.color = color

class MemorizeGame(GridLayout):
    def __init__(self, **kwargs):
        super(MemorizeGame, self).__init__(**kwargs)
        self.cols = 2

        #create buttons                                                                                                                                                                                                            
        self.button1 = Button(text='', background_color=(0,0,1,1))
        self.button2 = Button(text='', background_color=(0,1,1,1))
        self.button3 = Button(text='', background_color=(1,0,1,1))
        self.button4 = Button(text='', background_color=(0,1,0,1))
        self.buttonList = [self.button1, self.button2, self.button3, self.button4]

        #add buttons to the screen                                                                                                                                                                                                 
        for button in self.buttonList:
            self.add_widget(button)

    def blinkSquare(self):
        self.button1.background_color = (1, 1, 1, 1)
        def reset_color(*args):
            self.button1.background_color = (0, 0, 1, 1)
        Clock.schedule_once(reset_color, 1)

        # alternative:
        # Clock.schedule_once(partial(set_color, self.button1, (0, 0, 1, 1)))

    def on_touch_down(self, touch):
        self.blinkSquare()


class MemorizeApp(App):

    def build(self):
        game= MemorizeGame()
        return game

if __name__ == "__main__":
    MemorizeApp().run()

这只会使第一个按钮闪烁，但我相信您可以扩展它以完全按照您的意愿行事。

您可能会发现使用颜色重置功能创建自己的按钮子类最简洁，而不是每次都创建一个新函数。