如何使该程序在Kivy重新启动

Question

我是Kivy的新手。我做了一个TIC TAC脚趾游戏，但是当其中一位玩家获胜时，我希望比赛重新启动，所以玩家可以再次玩游戏。我该如何在Kivy中进行此操作，或者应该重置游戏基于的按钮和列表？我尝试了很多事情，例如

self.clear_widgets()

但是它不起作用

这是main.py

from kivy.app import App
from kivy.properties import OptionProperty, ObjectProperty
from kivy.uix.button import Button
from kivy.uix.gridlayout import GridLayout
from kivy.uix.popup import Popup
from kivy.uix.label import Label
from kivy.uix.boxlayout import BoxLayout
class Option():
    p1 = []
    p2 = []
    activeplayer = 1
class TicTable(BoxLayout):
    pass

class EntryButton(Button):
    opt = Option()
    obj = ObjectProperty()
    a = ObjectProperty()
    def setButton(self, p):
        self.obj.text = p
        self.obj.disabled = True

    def show_winner(self, win_player):
        if win_player:
            popup = Popup(title="There is a Winner", content=Label(text=win_player), size_hint=(None, None), size=(200, 200))
            popup.open()
    def check_winner(self):
        p1_list = set(self.opt.p1)
        p2_list = set(self.opt.p2)
        winner = None
        winning = [{1, 2, 3}, {4, 5, 6}, {7, 8, 9},
                    {1, 4, 7}, {2, 5, 8}, {3, 6, 9}]
        for i in winning:
            if p1_list.intersection(i) == i:
                winner = "Player X is the Winner"
                self.show_winner(winner)
                break
            elif p2_list.intersection(i) == i:
                winner = "Player O is the Winner"
                self.show_winner(winner)
                break

    def play(self):
        if self.opt.activeplayer == 1:
            self.setButton("X")
            self.opt.p1.append(self.obj.n)
            self.check_winner()
            self.opt.activeplayer =2
        elif self.opt.activeplayer ==2:
            self.setButton("O")
            self.opt.p2.append(self.obj.n)
            self.check_winner()
            self.opt.activeplayer = 1

class TicTacToeApp(App):
    pass

if __name__ == '__main__':
    TicTacToeApp().run()

这是tictactoe.kv

<EntryButton>:
    obj: obj
    id: obj
    on_press: root.play()

<TicTable>:
    orientation: "vertical"
    BoxLayout:
        EntryButton:
            n:1
            text: ""
        EntryButton:
            n:2
            text: ""
        EntryButton:
            n:3
            text:""
    BoxLayout:
        EntryButton:
            n:4
            text: ""
        EntryButton:
            n:5
            text: ""
        EntryButton:
            n:6
            text: ""
    BoxLayout:
        EntryButton:
            n:7
            text: ""
        EntryButton:
            n:8
            text: ""
        EntryButton:
            n:9
            text: ""


TicTable:

Answer 1

您的TicTacToeApp应该具有返回小部件的build方法。

我将举一个示例，其中它是一个测验应用程序，按下正确的按钮(或在Kivy Lang中发布(时，该应用将更新其测验。

    import random
    from kivy.app import App
    from kivy.uix.button import Button
    from kivy.uix.gridlayout import GridLayout
    from kivy.uix.label import Label
    Q_sets = ["1+1=...","1+6=...","77-43=..."];
    Opt_sets = [["2", "23"], ["4","7"], ["34","66"]];
    Ans_sets = ["2","7", "34"];
    class Option(Button):
        def __init__(self, label):
           super().__init__(self);
           self.text = label;
        def on_release(self):
           super().on_release(self);
           if self.text == self.parent.answer:
               self.parent.parent.clear_widgets();
               index = int(random.uniform(0, 3));
               New = Quiz(Q_sets[index], Opt_sets[index][0], Opt_sets[index][1], Ans_sets[index]);      
               self.parent.parent.add_widget(New);

    class Quiz(GridLayout):
        def __init__(self, question, opt1, opt2, correct):
           super().__init__(self, rows=3, cols=1);
           self.question_label = Label(text=question);
           self.opt1_button = Option(label=opt1);
           self.opt2_button = Option(label=opt2);
           self.answer=correct;
           self.add_widget(self.question_label);
           self.add_widget(self.opt1_button);
           self.add_widget(self.opt2_button);
    class QuizzesApp(App):
        def build(self):
            Container = GridLayout(); 
            Container.add_widget(Quiz(Q_sets[0], Opt_sets[0][0], Opt_sets[0][1], Ans_sets[0]));  
            return Container    

您可以研究此内容，然后即兴创作自己的情况。这还可以吗？