参考屏幕管理器
参考屏幕管理器
提问于 2015-08-30 16:16:24
是否可以在python中使用屏幕对象来引用屏幕管理器？基本上，我想从python中更改屏幕。
在猕猴桃里，这很简单：
app.root.current='ScreenName'我不想在这里创建一个新的屏幕管理器对象。
我这样做是因为在kivy语言中，我使用了以下代码：
on_release: root.select_experiment();app.root.current= 'StartExperiment'root.select_experiment()称其为流行。我希望只有在弹出弹出被取消后，StartExperiment屏幕才会发生转换。从基维开始就发生过。编辑：
Traceback (most recent call last):
File "C:\Users\sony\Desktop\test\main.py", line 171, in <module>
AppBaseClass().run()
File "C:\Anaconda\lib\site-packages\kivy\app.py", line 824, in run
runTouchApp()
File "C:\Anaconda\lib\site-packages\kivy\base.py", line 487, in runTouchApp
EventLoop.window.mainloop()
File "C:\Anaconda\lib\site-packages\kivy\core\window\window_sdl2.py", line 525, in mainloop
self._mainloop()
File "C:\Anaconda\lib\site-packages\kivy\core\window\window_sdl2.py", line 290, in _mainloop
EventLoop.idle()
File "C:\Anaconda\lib\site-packages\kivy\base.py", line 330, in idle
self.dispatch_input()
File "C:\Anaconda\lib\site-packages\kivy\base.py", line 315, in dispatch_input
post_dispatch_input(*pop(0))
File "C:\Anaconda\lib\site-packages\kivy\base.py", line 281, in post_dispatch_input
wid.dispatch('on_touch_up', me)
File "kivy\_event.pyx", line 699, in kivy._event.EventDispatcher.dispatch (kivy\_event.c:7011)
File "C:\Anaconda\lib\site-packages\kivy\uix\behaviors.py", line 163, in on_touch_up
self.dispatch('on_release')
File "kivy\_event.pyx", line 695, in kivy._event.EventDispatcher.dispatch (kivy\_event.c:6970)
File "kivy\_event.pyx", line 1168, in kivy._event.EventObservers.dispatch (kivy\_event.c:12154)
File "kivy\_event.pyx", line 1092, in kivy._event.EventObservers._dispatch (kivy\_event.c:11729)
File "C:\Users\sony\Desktop\test\main.py", line 84, in file_button_clicked
self.parent.ids.MyScreenManager.current = 'StartExperiment'
File "kivy\properties.pyx", line 720, in kivy.properties.ObservableDict.__getattr__ (kivy\properties.c:10911)
AttributeError: 'super' object has no attribute '__getattr__'回答 1
Stack Overflow用户
回答已采纳
发布于 2015-08-30 20:15:17
我相信最简单的方法是用kivy语言给屏幕管理器一个ID，然后引用ID表单Python。
基维档案
ScreenManager:
id: MyScreenManagerPython
self.parent.current = 'Target_Screen'页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/32298626
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