update checkbox

example/lib/example_box.dart

@@ -1,5 +1,6 @@
 import 'package:ansu_ui/ansu_ui.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
 
 class ExampleBox extends StatefulWidget {
   ExampleBox({Key key}) : super(key: key);
@@ -35,6 +36,16 @@ class _ExampleBoxState extends State<ExampleBox> {
               });
             },
           ),
+          ListTile(
+            leading: SizedBox(width: 20.w,height: 20.w, child: ASCheckBox.checkStyle(value: _state,color: Colors.red,)),
+            title: Text('CheckBox'),
+            subtitle: Text('with redcolor'),
+            onTap: () {
+              setState(() {
+                _state = !_state;
+              });
+            },
+          ),
         ],
       ),
     );

lib/box/as_check_box.dart

@@ -3,10 +3,12 @@ import 'package:flutter_screenutil/flutter_screenutil.dart';
 
 class ASCheckBox extends StatefulWidget {
   final bool value;
+
   ///控制选中时的样式
   final bool checkStyle;
+
   ///选中时颜色
-final Color color;
+  final Color color;
   ASCheckBox({Key key, this.value = false, this.color})
       : checkStyle = false,
         super(key: key);
@@ -38,7 +40,8 @@ class _ASCheckBoxState extends State<ASCheckBox> {
         height: widget.value ? 13.w : 5.w,
         width: widget.value ? 13.w : 5.w,
         decoration: BoxDecoration(
-          color:widget.color?? Color(0xFFF69A2D).withOpacity(widget.value ? 1 : 0),
+          color: (widget.color ?? Color(0xFFF69A2D))
+              .withOpacity(widget.value ? 1 : 0),
           borderRadius: BorderRadius.circular(13.w),
         ),
       ),
@@ -58,16 +61,20 @@ class _ASCheckBoxState extends State<ASCheckBox> {
           width: widget.value ? 0 : 1.w,
         ),
         borderRadius: BorderRadius.circular(27.w),
-        color:widget.color?? Color(0xFFFFBD32).withOpacity(widget.value ? 1 : 0),
+        color: (widget.color ?? Color(0xFFFFBD32))
+            .withOpacity(widget.value ? 1 : 0),
       ),
       child: AnimatedOpacity(
         duration: Duration(milliseconds: 300),
         curve: Curves.fastOutSlowIn,
         opacity: widget.value ? 1 : 0,
         child: FittedBox(
-                  child: Icon(
-            Icons.check,
-            size: 18.w,
+          child: Padding(
+            padding: EdgeInsets.all(5.w),
+            child: Icon(
+              Icons.check,
+              color: widget.color != null ? Colors.white : Colors.black,
+            ),
           ),
         ),
       ),