奇异果多选框

I'm trying to create a view using Kivy that has a list of options that are all selected by default, and the user can choose to deselect some entries (by clicking on the checkbox or anywhere on the row).Clicking on the label part of the row item works, but I noticed that clicking on the checkbox doesn't change the selection which I can't work out how to solve (I tried a few different state bindings, I left them commented out in the example code)Here is a quick example showing what I've tried.from kivy.app import Appfrom kivy.properties import StringProperty, ListPropertyfrom kivy.uix.boxlayout import BoxLayoutfrom kivy.uix.selectableview import SelectableViewfrom kivy.uix.togglebutton import ToggleButtonBehaviorfrom kivy.adapters.models import SelectableDataItemfrom kivy.lang import BuilderBuilder.load_string("""#: import ListAdapter kivy.adapters.listadapter.ListAdapter#: import Factory kivy.factory.Factory<MyListItem>: height: 50 on_state: root.is_selected = args[1] == "down" state: "down" if root.is_selected else "normal" BoxLayout: spacing: 10 CheckBox: on_state: root.is_selected = args[1] == "down" state: "down" if root.is_selected else "normal" # on_state: root.state = args[1] # state: root.state Label: text: root.name<Page>: orientation: "vertical" ListView: id: LV adapter: ListAdapter(data=root.data, cls=Factory.MyListItem, args_converter=root.args_converter, selection_mode="multiple", propagate_selection_to_data=True) Button: size_hint_y: None text: "print selection" on_press: print(LV.adapter.selection)""")class MyListItem(ToggleButtonBehavior, SelectableView, BoxLayout): name = StringProperty() def __repr__(self): return "%s(name=%r)" % (type(self).__name__, self.name) def on_state(self, me, state): print me, state if state == "down": self.select() else: self.deselect() # self.is_selected = state == "down"class DataItem(SelectableDataItem): def __init__(self, name, **kwargs): super(DataItem, self).__init__(**kwargs) self.name = name def __repr__(self): return "%s(name=%r, is_selected=%r)" % (type(self).__name__, self.name, self.is_selected)class Page(BoxLayout): data = ListProperty() def __init__(self, **kwargs): super(Page, self).__init__(**kwargs) self.data = [DataItem("Item {}".format(i), is_selected=True) for i in range(10)] def args_converter(self, index, data_item): return { "index": index, "name": data_item.name, }class ExampleApp(App): def build(self): return Page()if __name__ == "__main__": ExampleApp().run()I'm using Kivy v1.9.1-devEdit: I worked out how to get all the entries pre-selected, I've updated the code and took that part of the question out. 解决方案 Just in case someone else has the the question I point to the right url:You should consider the new RecycleView, which has all the functionality you request. Look here for a sample: Kivy: alternative to deprecated features 这篇关于奇异果多选框的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！