A Flutter package that provides a widget to create a nested reorderable list 21 May 2023 Scroll Customizable Flutter widget which synchronize ScrollView with tabs Customizable Flutter widget which synchronize ScrollView with tabs 17 May 2023 Dropdown Drop-down list of data allowing to make...
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引发了另一个异常:应该只有一个具有[DropdownButton]值的项目:软膏。 检测到的零或2个或更多[DropdownButton]具有相同的值。 我认为这是因为我正在调用按钮的onChanged:内部的函数。任何帮助将非常感激。谢谢! 注意:我也只将dynamicDropDownMainCategory()函数放在initState中。 //FIRST DROPDOWNBUTTON BELOW // ch...
DropdownButton<String>( value: ff.userLanguage, items: [ DropdownMenuItem(value: 'ko', child: Text('Korean')), DropdownMenuItem(value: 'en', child: Text('English')), ], onChanged: (String value) { ff.updateProfile({'language': value}); }, ),Then update the language like below...
map((String value) { return new DropdownMenuItem<String>( value: value, child: new Text(value), ); }).toList(), ), ), new Container( height: 1.0, width: width, color: Colors.grey, ), new TextField( decoration: InputDecoration(labelText: "Rate*"), ), new UploadImage(), new ...
您尝试访问的是每个数组元素中的字段。所以现在的情况是：您正在查找json键'title'、'image'、'daytime'...
userModel.province = dropDownValue; userModel.dateOfBirth = dateController.text; userModel.challengeHistory = []; userModel.challengeMember = []; userModel.profileImage = 'https://firebasestorage.googleapis.com/v0/b/athaddak-bf02c.appspot.com/o/default_picture%2FBlank-Avatar.png?alt=media&token...
Despite running normally without warnings, I am encountering issues with the utilization ofLayOut. The first problem arises when attempting to display the selected value on the screen after usingDropDownFormField, despite successful addition to Firestore. The second issue arises during searches, where ...
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我从Firestore和其他地方收集了一些数据,至少现在是模拟数据。我已经创建了一个方法和一个For循环,试图用生成的对象填充一个列表。我经常收到错误消息"RangeError (index):Invalid value: Valid value range is empty: 1“。 我尝试了什么?-First我想这可能是Firestore数据的问题,也许在赋值的...