1. 使用DropdownButton和CheckboxListTile结合AlertDialog 这种方法利用了DropdownButton和CheckboxListTile组件,结合AlertDialog来实现多选功能。 步骤: 创建自定义的MultiSelect Widget: dart class MultiSelect extends StatefulWidget { final List<String> items; const MultiSelect({Key? key, required this.items}...
You can use DropdownButton2 as Multiselect Dropdown with Checkboxes as shown in the examples. You can use DropdownButton2 as Searchable Dropdown as shown in the examples. You can use DropdownButton2 as a popup menu button by using the parameter customButton. You can pass Icon,Image or an...
DropdownButton无法更新其值(Null) 、 第二:flutter不会将焦点从任何TextField完全转移到DropdownButton。child: Text(city), ); onChanged: (String value) { }, ); } 编辑:从DropdownMenuItem中选择一项后重置FocusNode的解决方案是在setstate 浏览31提问于2019-02-07得票数0 ...
MultiSelectSearchRequestDropdown import 'package:dropdown_flutter/custom_dropdown.dart'; import 'package:flutter/material.dart'; import 'dart:developer'; const List<Pair> _list = [ Pair('Developer', Icons.developer_board), Pair('Designer', Icons.deblur_sharp), Pair('Consultant', Icons.money_...
在颤振多选列表中,在一个multiselect中选择一个项时,所有具有相同项的其他多选择都应该被选中。 、、、 我有多个多选择下降与重复选项,通过下拉。例如Dropdown1 -选项A,B,C,D Dropdown2 -选项D,E,F,G,所以当我在第一个下拉菜单中选择选项A,D时,第二个下拉菜单的选项D也同时被选中。问题是FlutterMultiChip...
multiSelectList.add({"images":'assets/images/resort_4.jpg',"desc":"Welcome to Houston!"}); controller.disableEditingWhenNoneSelected=true; controller.set(multiSelectList.length); } Like after this we have taken a ListViewBuilder widget inside which we have taken MultiSelectItem() widget in whic...
您的代码正常工作 // Multiselectvar multiSelect = [];multiSelect.push('#specialties');$.each(multiSelect, function(index, value) { console.info({value}); // Outputs: '#specialties' // This ALSO fires $(value).change(function() { console.info('test'); });}); <script src="https://...
可以使用required选项上的“selected”属性设置select元素的默认值。这是一个布尔属性。默认情况下，下拉...
可以使用required选项上的“selected”属性设置select元素的默认值。这是一个布尔属性。默认情况下，下拉...
dependencies: multi_dropdown: ^latest_version Run flutter packages get Example import 'package:flutter/material.dart'; import 'package:multiselect_dropdown/multiselect_dropdown.dart'; void main() { runApp(const MyApp()); } class MyApp extends StatelessWidget { const MyApp({Key? key}) : super...