python - Kivy: 'NoneType' object has no attribute 'bind' -
i testing out actionbar widget of kivy, here program -
kivy.app import app kivy.lang import builder kivy.uix.boxlayout import boxlayout builder.load_string(''' <rootwidget>: actionbar: pos_hint: {'top':1} actionview: actionbutton: text: "button" ''') class rootwidget(boxlayout): pass class mainapp(app): def build(self): return rootwidget() if __name__ == "__main__": mainapp().run()
nothing going on here, added actionbar inside boxlayout.
here traceback getting on executing program.
try sth this:
<rootwidget>: actionbar: pos_hint: {'top':1} actionprevious: actionview: actionbutton: text: "button"
in case actionview treated child of rootwidget , notice actionprevious .
Comments
Post a Comment