flutter 开发 构造一个有验证功能的表单

官方示例

https://flutter.cn/docs/cookbook/forms/validation

另外官方的源代码中的表单做的也很好，在登录和注册时可以参考，包括了日期，复选框，单选框，滑动选择等。

 

https://github.com/davigmacode/flutter_smart_select

SmartSelect allows you to easily convert your usual form select or dropdown into dynamic page,

popup dialog, or sliding bottom sheet with various choices input such as radio, checkbox, switch, chips, or even custom input. Supports single and multiple choice.