import 'package:flutter/material.dart'; import 'package:flutter_screenutil/flutter_screenutil.dart'; class ASCheckBox extends StatelessWidget { final bool value; ///控制选中时的样式 final bool checkStyle; ///选中时颜色 final Color color; ASCheckBox({Key key, this.value = false, this.color}) : checkStyle = false, super(key: key); ASCheckBox.checkStyle({Key key, this.value = false, this.color}) : checkStyle = true, super(key: key); _renderDefault() { return Container( height: 17.w, width: 17.w, alignment: Alignment.center, decoration: BoxDecoration( border: Border.all( color: Color(0xFFD5D5D5), width: 1.w, ), borderRadius: BorderRadius.circular(17.w), ), child: AnimatedContainer( duration: Duration(milliseconds: 300), curve: Curves.fastOutSlowIn, height: value ? 13.w : 5.w, width: value ? 13.w : 5.w, decoration: BoxDecoration( color: (color ?? Color(0xFFF69A2D)).withOpacity(value ? 1 : 0), borderRadius: BorderRadius.circular(13.w), ), ), ); } _renderCheck() { return AnimatedContainer( duration: Duration(milliseconds: 300), curve: Curves.fastOutSlowIn, height: 27.w, width: 27.w, alignment: Alignment.center, decoration: BoxDecoration( border: Border.all( color: Color(0xFFD5D5D5), width: value ? 0 : 1.w, ), borderRadius: BorderRadius.circular(27.w), color: (color ?? Color(0xFFFFBD32)).withOpacity(value ? 1 : 0), ), child: AnimatedOpacity( duration: Duration(milliseconds: 300), curve: Curves.fastOutSlowIn, opacity: value ? 1 : 0, child: FittedBox( child: Padding( padding: EdgeInsets.all(5.w), child: Icon( Icons.check, color: color != null ? Colors.white : Colors.black, ), ), ), ), ); } @override Widget build(BuildContext context) { return checkStyle ? _renderCheck() : _renderDefault(); } }