python - 如何修复在其边界之外按下的 Kivy 按钮？

Question

我有一个程序可以在其中创建一个GridLayout()带有按钮的程序。出于某种原因，它们在单击其他按钮时被按下，甚至在窗口甚至没有聚焦时都被按下。我希望它只会在我单击按钮本身时触发。我尝试搜索 Google 和 StackOverflow，但没有找到与我的问题相关的任何内容。

奇怪的是，确切的行为有所不同。有时，单击特定区域中的按钮也会触发它旁边的按钮。其他时候，除了我实际按下的按钮之外，当我单击窗口内的任意位置时，会触发一个按钮（看似随机选择并保持不变，直到我停止程序）。在窗口外单击总是只触发最近的按钮。

我的 MRE 是：

import kivy
kivy.require('2.0.0')

from kivy.app import App
from kivy.uix.gridlayout import GridLayout
from kivy.uix.button import Button

class MyApp(App):

    def build(self):
        layout = GridLayout(cols=2)
        layout.add_widget(Button(text = "Button 1"))
        layout.add_widget(Button(text = "Button 2"))
        layout.add_widget(Button(text = "Button 3"))
        layout.add_widget(Button(text = "Button 4"))
        return layout
    
if __name__ == '__main__':
    MyApp().run()

我的外壳输出是：

[INFO   ] [Logger      ] Record log in /home/pi/.kivy/logs/kivy_21-01-10_29.txt
[INFO   ] [Kivy        ] v2.0.0
[INFO   ] [Kivy        ] Installed at "/home/pi/Programming/kivy_venv/lib/python3.7/site-packages/kivy/__init__.py"
[INFO   ] [Python      ] v3.7.3 (default, Jul 25 2020, 13:03:44) 
[GCC 8.3.0]
[INFO   ] [Python      ] Interpreter at "/home/pi/Programming/kivy_venv/bin/python"
[INFO   ] [Factory     ] 186 symbols loaded
[INFO   ] [Image       ] Providers: img_tex, img_dds, img_sdl2, img_pil (img_ffpyplayer ignored)
[INFO   ] [Text        ] Provider: sdl2(['text_pango'] ignored)
[INFO   ] [Window      ] Provider: sdl2
[INFO   ] [GL          ] Using the "OpenGL" graphics system
[INFO   ] [GL          ] Backend used <sdl2>
[INFO   ] [GL          ] OpenGL version <b'2.1 Mesa 19.3.2'>
[INFO   ] [GL          ] OpenGL vendor <b'Broadcom'>
[INFO   ] [GL          ] OpenGL renderer <b'V3D 4.2'>
[INFO   ] [GL          ] OpenGL parsed version: 2, 1
[INFO   ] [GL          ] Shading version <b'1.20'>
[INFO   ] [GL          ] Texture max size <4096>
[INFO   ] [GL          ] Texture max units <16>
[INFO   ] [Window      ] auto add sdl2 input provider
[INFO   ] [Window      ] virtual keyboard not allowed, single mode, not docked
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event5
[INFO   ] [HIDInput    ] Read event from </dev/input/event5>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event1
[INFO   ] [HIDInput    ] Read event from </dev/input/event1>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event6
[INFO   ] [HIDInput    ] Read event from </dev/input/event6>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event4
[INFO   ] [HIDInput    ] Read event from </dev/input/event4>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event0
[INFO   ] [HIDInput    ] Read event from </dev/input/event0>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event7
[INFO   ] [HIDInput    ] Read event from </dev/input/event7>
[INFO   ] [Base        ] Start application main loop
[INFO   ] [HIDMotionEvent] using <USBPS2 Mouse��>
[INFO   ] [HIDMotionEvent] using <Logitech G305��>
[INFO   ] [HIDMotionEvent] using <USBPS2��>
[INFO   ] [HIDMotionEvent] using <USBPS2 Consumer Control��>
[INFO   ] [HIDMotionEvent] using <Logitech Wireless Mouse��>
[INFO   ] [GL          ] NPOT texture support is available
[INFO   ] [HIDMotionEvent] using <USBPS2 System Control��>

没有按下任何内容的窗口（我没有足够的声誉来发布图像，所以它是一个链接）：

程序生成的窗口

万一它是相关的，我正在运行一个带有 32 位 Raspberry Pi OS 的 8gb pi 4。

标签： pythonkivyraspberry-pi4