Я думаю, что основной проблемой является использование GridLayout, потому что оно явно пытается избежать наложения виджетов.Если ваше приложение использует FloatLayout, ограничений нет, поэтому наложение виджетов легко.Вот моя версия вашего кода с использованием FloatLayout:
from kivy.app import App
from kivy.clock import Clock
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.button import Button
from kivy.uix.relativelayout import RelativeLayout
from functools import partial
from kivy.uix.behaviors.button import ButtonBehavior
from kivy.properties import StringProperty, DictProperty
class MenuButton(ButtonBehavior, BoxLayout):
# code inspired from:
# https://github.com/kivy/kivy/wiki/Menu-on-long-touch
# example use:
# MenuButton(text = 'Button Text', action = 'function_as_string', options = { 'Option 1': 'function_as_string', 'Option 2': 'other_fun_as_str' } )
# text will be applied to the buttons label, and action will only occur if the menu isn't triggered
# in options, the keys are used as the menu options, and their values are the functions you wish to call
text = StringProperty('') # stores the button text
action = StringProperty('') # stores the button release action
options = DictProperty({}) # stores menu button text and actions
def __init__(self, **kwargs):
super(MenuButton,self).__init__(**kwargs)
# by default, contains a button and relative layout
# the menu() function adds the menu to the relative layout
# this way, the menu can appear below the button
self.orientation = 'vertical'
self.size_hint_y = None
self.button = Button(text=self.text, size_hint_y=None, height=32)
self.add_widget(self.button)
self.height = self.button.height
self.bind(on_touch_down=self.create_clock, on_touch_up=self.delete_clock)
self.m = RelativeLayout()
self.m.size_hint_y = None
self.m.height = 0
self.add_widget(self.m)
def create_clock(self, widget, touch, *args):
if self.children[1].collide_point(touch.x, touch.y):
callback = partial(self.menu, touch)
Clock.schedule_once(callback, .3)
touch.ud['event'] = callback
def delete_clock(self, widget, touch, *args):
if self.children[1].collide_point(touch.x, touch.y):
if 'event' in touch.ud: # avoid non-existent key errors
Clock.unschedule(touch.ud['event'])
if self.m.children == []:
eval(self.action)
def menu(self, touch, *args):
menu = BoxLayout(orientation='vertical')
height_calc = 0 # calculate the total height needed when the menu is opened
for text, fun_pass in self.options.iteritems():
but = Button(id=fun_pass, text=text, height=32, size_hint_y=None)
height_calc += but.height
but.bind(on_release=partial(self.close_menu, menu))
but.bind(on_release=self.call_function)
menu.add_widget(but)
close = Button(text='close', height=32, size_hint_y=None)
height_calc += close.height
close.bind(on_release=partial(self.close_menu, menu))
menu.add_widget(close)
self.m.add_widget(menu)
# adjust position and height of expanded MenuButton
self.m.height = height_calc
self.height = self.button.height + self.m.height
self.pos = (0, self.orig_y - self.m.height)
# make sure this MenuButton is drawn on top of any other MenuButtons
app = App.get_running_app()
app.root.remove_widget(self)
app.root.add_widget(self)
def close_menu(self, widget, *args): # clears all menu widgets from the relative layout
self.m.clear_widgets()
# reset height and position of MenuButton when not expanded
self.m.height = 0
self.height = self.button.height
self.pos = (0, self.orig_y)
def call_function(self, widget, *args): # calls function in the app by literally evaluating the string
eval(widget.id)
class Test(App):
def build(self):
f = FloatLayout()
self.mb1 = MenuButton(text='Testing1', action='App.get_running_app().pp("going")', options={ '1': 'App.get_running_app().pp("a")', '2': 'App.get_running_app().pp("b")' } )
self.mb1.orig_y = f.height - self.mb1.button.height # save the original y position, so it can be restored later
self.mb1.pos = (0, self.mb1.orig_y)
f.add_widget(self.mb1)
self.mb2 = MenuButton(text='Testing2', action='App.get_running_app().pp("going")', options={ '1': 'App.get_running_app().pp("a")', '2': 'App.get_running_app().pp("b")' } )
self.mb2.orig_y = f.height - self.mb1.button.height - self.mb2.button.height # save the original y position, so it can be restored later
self.mb2.pos = (0, self.mb2.orig_y)
f.add_widget(self.mb2)
self.root = f
f.bind(size=self.sizeChanged) # handle size adjustments when app is displayed
def sizeChanged(self, *args):
# make sure the MenuButtons are always at the top
self.mb1.orig_y = self.root.height - self.mb1.button.height
self.mb2.orig_y = self.root.height - self.mb1.button.height - self.mb2.button.height
self.mb1.pos = (0, self.mb1.orig_y)
self.mb2.pos = (0, self.mb2.orig_y)
def pp(self,text):
print text
if __name__ == '__main__':
Test().run()
Я также сделал пару других изменений.Я добавляю защиту от ключевых ошибок в методе delete_clock (я видел это иногда).Также добавлена привязка для настройки размеров и положения MenuButtons, когда изменяется размер приложения.