[英]Same callback to multiple buttons in kivy
我正在嘗試對多個按鈕使用相同的回調,我想要一種返回布爾值的東西來使用回調,就像在這里所做的那樣,但是我找不到這樣的東西。 有沒有一種方法可以將每個按鈕綁定不同的功能呢?
import kivy
from kivy.app import App
from kivy.uix.screenmanager import Screen
from kivy.uix.gridlayout import GridLayout
from kivy.uix.button import Button
kivy.require('1.9.2')
class VelhaGame(GridLayout, Screen):
def __init__(self, **kwargs):
super(VelhaGame, self).__init__(**kwargs)
self.cols = 3
self.rows = 3
self.font_size = 100
self.button1 = Button(text='', font_size=self.font_size)
self.add_widget(self.button1)
self.button1.bind(on_press=self.player_turn)
self.button2 = Button(text='', font_size=self.font_size)
self.add_widget(self.button2)
self.button2.bind(on_release=self.player_turn)
self.button3 = Button(text='', font_size=self.font_size)
self.add_widget(self.button3)
self.button3.bind(on_release=self.player_turn)
self.button4 = Button(text='', font_size=self.font_size)
self.add_widget(self.button4)
self.button4.bind(on_release=self.player_turn)
self.button5 = Button(text='', font_size=self.font_size)
self.add_widget(self.button5)
self.button5.bind(on_release=self.player_turn)
self.button6 = Button(text='', font_size=self.font_size)
self.add_widget(self.button6)
self.button6.bind(on_release=self.player_turn)
self.button7 = Button(text='', font_size=self.font_size)
self.add_widget(self.button7)
self.button7.bind(on_release=self.player_turn)
self.button8 = Button(text='', font_size=self.font_size)
self.add_widget(self.button8)
self.button8.bind(on_release=self.player_turn)
self.button9 = Button(text='', font_size=self.font_size)
self.add_widget(self.button9)
self.button9.bind(on_release=self.player_turn)
self.player1 = True
def player_turn(self, *args):
if self.player1:
self.player1 = False
if self.button1:
self.button1.text = 'X'
elif self.button2:
self.button2.text = 'X'
elif self.button3:
self.button3.text = 'X'
elif self.button4:
self.button4.text = 'X'
elif self.button5:
self.button5.text = 'X'
elif self.button6:
self.button6.text = 'X'
elif self.button7:
self.button7.text = 'X'
elif self.button8:
self.button8.text = 'X'
elif self.button9:
self.button9.text = 'X'
elif not self.player1:
self.player1 = True
if self.button1:
self.button1.text = 'O'
elif self.button2:
self.button2.text = 'O'
elif self.button3:
self.button3.text = 'O'
elif self.button4:
self.button4.text = 'O'
elif self.button5:
self.button5.text = 'O'
elif self.button6:
self.button6.text = 'O'
elif self.button7:
self.button7.text = 'O'
elif self.button8:
self.button8.text = 'O'
elif self.button9:
self.button9.text = 'O'
class VelhaGameApp(App):
def build(self):
game = Screen()
table_screen = VelhaGame()
game.add_widget(table_screen)
return game
if __name__ == '__main__':
VelhaGameApp().run()
如果看到重復的代碼,通常意味着需要循環。 同樣,您要綁定的方法將作為調用它的button的第一個參數實例接收。
import kivy
from kivy.app import App
from kivy.uix.screenmanager import Screen
from kivy.uix.gridlayout import GridLayout
from kivy.uix.button import Button
class VelhaGame(GridLayout, Screen):
def __init__(self, **kwargs):
super(VelhaGame, self).__init__(**kwargs)
self.cols = 3
self.rows = 3
self.font_size = 100
self.buttons = []
for i in range(1, 10):
button = Button(text='', font_size=self.font_size)
button.bind(on_press=self.player_turn)
self.add_widget(button)
self.buttons.append(button)
self.player1 = True
def player_turn(self, instance, *args):
if self.player1:
self.player1 = False
instance.text = 'X'
elif not self.player1:
self.player1 = True
instance.text = '0'
class VelhaGameApp(App):
def build(self):
game = Screen()
table_screen = VelhaGame()
game.add_widget(table_screen)
return game
if __name__ == '__main__':
VelhaGameApp().run()
您還可以創建Button
類的子類,但這在這里是一個過大的選擇。
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