Question

我在Kivy中使用一些回调方法创建了一个自定义Button类，当我右键单击我希望能够从几个不同的操作中选择的按钮时：

from kivy.config import Congfig
Config.set('input', 'mouse', 'mouse,multitouch_on_demand')

from kivy.app import App
from kivy.uix import Button


class CustomButton(Button):
   """This is just for demonstration"""

   def __init__(self, name='', **kwargs):
       super(Service, self).__init__(**kwargs)
       self.name = name
       self.on_touch_down = self.mouse_click

   def mouse_click(self, touch):
       if self.collide_point(touch.x, touch.y):
           if touch.button == 'right':
               # Open context menu
               pass

   def callback_1(self):
       # This will be called from one of the context options
       pass

   def callback_2(self):
       # Or this will be called from a different option
       pass

该代码仅用于演示目的，以表达我想要实现的目标。这可能吗？

提前致谢。

Answer 1

在mouse_click()方法（您有# Open context menu）中，您可以调用自定义弹出式菜单，如：

self.popup = PopMenu(touch)
self.popup.open()

使用创建ModalView的PopMenu类，类似于：

class PopMenu(object):

    def __init__(self, touch):
        myContent = BoxLayout(orientation='vertical')
        button = Button(text='button1')
        myContent.add_widget(button)
        button = Button(text='button2')
        myContent.add_widget(button)
        button = Button(text='button3')
        myContent.add_widget(button)
        self.popup = ModalView(size_hint=(None, None), height=myContent.height, pos_hint={'x' : touch.spos[0], 'top' : touch.spos[1]})
        self.popup.add_widget(myContent)

    def open(self, *args):
        self.popup.open()

您可以将回调添加到PopMenu中的按钮。

Kivy：如何向按钮

1 个答案: