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更新 flet 中的搜索栏 S ListTile
原标题:Update SearchBar s ListTile in flet
我有一个要按照搜索栏中的用户类型过滤的项目列表 。 请在搜索栏中说用户类型“ o ” 。 在此情况下, 我想更新 ListTile, 仅显示其名称中含有子字符串“ o ” 的水果。 我的代码是 : 将 flet 导入 flet= ft flest_ list = [“ apple”, “banana”, “grape” 、 “rowberry”, “kiwi”, “pineapple”, “ mango”, “pear” list_to_ show= fal_listal_ listal_e_ model_e: global_shall_to listal: listal_listital_dat_ listal_ listal_ listal_ listital_ i_ glocle_ dol=ft. blick. (le_ greal_ flist=] flist. flist flist. a flist.
问题回答
Apparently, you need to create a list view variable and add it to the anchor controls: import flet as ft def main(page): fruits_list = ["apple", "banana", "orange", "grape", "strawberry", "watermelon", "kiwi", "pineapple", "mango", "pear"] def open_anchor(e): anchor.open_view() def close_anchor(e): anchor.close_view(e.control.data) def handle_change(e): list_to_show = [fruit for fruit in fruits_list if e.data.lower() in fruit] lv.controls.clear() for i in list_to_show: lv.controls.append(ft.ListTile(title=ft.Text(f"{i}"), on_click=close_anchor, data=i)) anchor.update() lv = ft.ListView() anchor = ft.SearchBar( view_elevation=4, divider_color=ft.colors.BLUE, bar_hint_text="Search for fruits...", view_hint_text="Suggestions...", on_change=handle_change, on_tap=open_anchor, controls=[ lv ], ) page.add( ft.Row([ anchor ], alignment=ft.MainAxisAlignment.CENTER ) ) ft.app(main) Credit to bhushanrathod32 who solved this problem in this GitHub post




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