Kivy Python 中的弹出窗口 - 显示在前面

Question

from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.popup import Popup
from kivy.uix.label import Label
from kivy.uix.stacklayout import StackLayout
from kivy.uix.modalview import ModalView
from kivy.config import Config
from ai import Ai
from random import randint

class TicTacToe(StackLayout): #StackLayout explanation: https://kivy.org/docs/api-kivy.uix.stacklayout.html

    states = [1, 2, 3, 4, 5, 6, 7, 8, 9]
    choices = ["X","O"]

    def __init__(self, **kwargs):
        super(TicTacToe, self).__init__(**kwargs)
        self.init_players();

        for x in range(9): # range() explanation: http://pythoncentral.io/pythons-range-function-explained/
            bt = Button(text=' ', font_size=200, width=200, height=200, size_hint=(None, None), id=str(x+1))
            bt.bind(on_release=self.btn_pressed)
            self.add_widget(bt)

        view = ModalView(auto_dismiss=False)
        view.add_widget(Label(text='Hello world'))
        view.open()

    def init_players(self):
        rand_choice = randint(0,1);
        self.bot = Ai(self.choices[rand_choice]);
        self.player = self.choices[0] if rand_choice == 1 else self.choices[1]

    def btn_pressed(self, button):
        button.text="X"
        self.states[int(button.id)-1] = "X"
        print(self.states)

class MyApp(App):

    title = 'Tic Tac Toe'

    def build(self):
        Config.set('graphics', 'width', '600')
        Config.set('graphics', 'height', '600')
        return TicTacToe()



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

这是我的简单代码，我想要做的是，而不是 ModalView 有一个弹出窗口说“你好，你用 X 开始了这个游戏”。问题是当我使用 Popup（也使用 ModalView）时，窗口显示在每个按钮后面。当我点击后调用弹出窗口时，弹出窗口显示正确，但我想在窗口初始化时执行此操作。

Answer 1

我建议您在打开视图后直接打开弹出窗口

view = ModalView(auto_dismiss=False)
view.add_widget(Label(text='Hello world'))
view.open()

popup = Popup(
    title=title,
    content=content,
    auto_dismiss=True)

popup.open()