Kivy:刷新RecycleView数据

# 导入所需模块和类
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.recycleview import RecycleView

# 创建自定义适配器类
class CustomAdapter(RecycleView.Adapter):
    def __init__(self, data):
        self.data = data

    def refresh(self):
        # 更新数据源
        self.data = get_updated_data()

        # 刷新RecycleView
        self.recycleview.refresh_from_data()

    def create_view(self, index, data_item):
        # 创建并返回自定义视图

    def update_view(self, view, index, data_item):
        # 更新视图的内容

# 创建自定义RecycleView类
class CustomRecycleView(RecycleView):
    def __init__(self, **kwargs):
        super(CustomRecycleView, self).__init__(**kwargs)
        self.adapter = CustomAdapter(initial_data)

    def refresh(self):
        # 调用适配器的刷新方法
        self.adapter.refresh()

# 加载Kivy文件
Builder.load_string('''
<CustomRecycleView>:
    viewclass: 'CustomView'
    data: root.adapter.data
    RecycleBoxLayout:
        orientation: 'vertical'
        default_size_hint: 1, None
        default_size: None, dp(50)
        size_hint_y: None
        height: self.minimum_height
''')

# 创建Kivy应用
class MyApp(App):
    def build(self):
        return CustomRecycleView()

# 运行应用
MyApp().run()