kivyの複数のボタンに同じコールバック

Question

複数のボタンに同じコールバックを使用しようとしていますが、ここで行われたようにコールバックを使用するためにブール値を返すものが必要でしたが、ボタンごとに異なる機能をバインドせずにこれを行う方法はありますか？

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() 

Answer 1

コードを繰り返していることがわかっている場合は、ループが必要なことがよくあります。また、バインドしているメソッドは、それを呼び出したボタンの最初の引数インスタンスとして受け取ります。

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() 

またButtonクラスのサブクラスを作成することができますが、それはここではやり過ぎでしょう。