blocks|key|433265|text|下面是一个带有圆形区域和中间复选标记的示例Widget。您可以使用此选项来实现循环复选标记。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|433266|此示例最初来自于此，因此请回答here。|offset|length|433267|bool+_value+=+false;

@override
Widget+build(BuildContext+context)+{
++++return+Scaffold(
++++++++appBar:+AppBar(
++++++++title:+Text("Circle+CheckBox"),
++++++++),
++++++++body:+Center(
++++++++++++child:+InkWell(
++++++++onTap:+()+{
++++++++++++setState(()+{
++++++++++++_value+=+!_value;
++++++++++++});
++++++++},
++++++++child:+Container(
++++++++++++decoration:+BoxDecoration(shape:+BoxShape.circle,+color:+Colors.blue),
++++++++++++child:+Padding(
++++++++++++padding:+const+EdgeInsets.all(10.0),
++++++++++++child:+_value
++++++++++++++++?+Icon(
++++++++++++++++++++Icons.check,
++++++++++++++++++++size:+30.0,
++++++++++++++++++++color:+Colors.white,
++++++++++++++++++++)
++++++++++++++++:+Icon(
++++++++++++++++++++Icons.check_box_outline_blank,
++++++++++++++++++++size:+30.0,
++++++++++++++++++++color:+Colors.blue,
++++++++++++++++++++),
++++++++++++),
++++++++),
++++++++)),
++++);
}|code-block|syntax|javascript|433268|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/52327347/1197605^0|0|F|4|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@$D|U|E|V|1|W]]|A|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

Following is a sample Widget with round area and check mark in middle.
You can play around with this to achieve a circular check mark.
This sample is originally from this SO answer <a href="https://stackoverflow.com/a/52327347/1197605">here</a>.
<pre><code>bool _value = false;

@override
Widget build(BuildContext context) {
 return Scaffold(
 appBar: AppBar(
 title: Text(&quot;Circle CheckBox&quot;),
 ),
 body: Center(
 child: InkWell(
 onTap: () {
 setState(() {
 _value = !_value;
 });
 },
 child: Container(
 decoration: BoxDecoration(shape: BoxShape.circle, color: Colors.blue),
 child: Padding(
 padding: const EdgeInsets.all(10.0),
 child: _value
 ? Icon(
 Icons.check,
 size: 30.0,
 color: Colors.white,
 )
 : Icon(
 Icons.check_box_outline_blank,
 size: 30.0,
 color: Colors.blue,
 ),
 ),
 ),
 )),
 );
}
</code></pre>

blocks|key|3457265|text|对于这个需求，pub+dev提供了一个包circular_check_box|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3457266|请参阅此链接https://pub.dev/packages/circular_check_box|3457267|详细解释将在上面的链接中提供|3457268|​|3457269|📷|atomic|3457270|3457271|entityMap|0|LINK|mutability|MUTABLE|url|https://pub.dev/packages/circular_check_box|1|IMAGE|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/396621d58587ec4ab03954b5fc098fe6.png|imageAlt^0|K|I|0|6|17|0|0|0|0|0|1|1|0|0^^$0|@$1|2|3|4|5|6|7|13|8|@$9|14|A|15|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|16|8|@]|D|@$9|17|A|18|1|19]]|E|$]]|$1|H|3|I|5|6|7|1A|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|1B|8|@]|D|@]|E|$]]|$1|L|3|M|5|N|7|1C|8|@]|D|@$9|1D|A|1E|1|1F]]|E|$]]|$1|O|3|K|5|6|7|1G|8|@]|D|@]|E|$]]|$1|P|3|-4|5|6|7|1H|8|@]|D|@]|E|$]]]|Q|$R|$5|S|T|U|E|$V|W]]|X|$5|Y|T|Z|E|$10|11|12|-4]]]]

For this requirement pub dev providing a package circular_check_box

Refer this link <a href="https://pub.dev/packages/circular_check_box" rel="nofollow noreferrer">https://pub.dev/packages/circular_check_box</a>

Detail explanation will available in above link

<img src="https://i2.wp.com/blog.stylingandroid.com/wp-content/uploads/2017/06/toggle_checked.png?resize=240%2C240&amp;ssl=1" alt="rounded checkbox">

blocks|key|3457286|text|您可以添加一个简单的包来保留复选框的功能和动画：https://pub.dev/packages/getwidget|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3457287|安装导入包后实现：|3457288|+GFCheckbox(
++++size:+GFSize.SMALL,
++++activeBgColor:+GFColors.DANGER,
++++type:+GFCheckboxType.circle,
++++onChanged:+(value)+{
++++++setState(()+{
++++++++isChecked+=+value;
++++++});
++++},
++++value:+isChecked,
++++inactiveIcon:+null,
++),|code-block|syntax|javascript|3457289|entityMap|0|LINK|mutability|MUTABLE|url|https://pub.dev/packages/getwidget^0|O|Y|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

There is a simple package you can add that keeps the functionality and animation of the checkbox: <a href="https://pub.dev/packages/getwidget" rel="nofollow noreferrer">https://pub.dev/packages/getwidget</a>
Implementation after installing and importing package:
<pre><code> GFCheckbox(
 size: GFSize.SMALL,
 activeBgColor: GFColors.DANGER,
 type: GFCheckboxType.circle,
 onChanged: (value) {
 setState(() {
 isChecked = value;
 });
 },
 value: isChecked,
 inactiveIcon: null,
 ),
</code></pre>

blocks|key|5569151|text|Theme(
++++++++++++++++data:+ThemeData(
++++++++++++++++++++checkboxTheme:+CheckboxThemeData(
++++++++++++++++++++++++shape:+RoundedRectangleBorder(
++++++++++++++++++++++++++++borderRadius:+BorderRadius.circular(25)))),
++++++++++++++++child:+CheckboxListTile(
++++++++++++++++++value:+model.specialSale,
++++++++++++++++++secondary:+Icon(
++++++++++++++++++++CustomIcons.percentage,
++++++++++++++++++++color:+Theme.of(context).primaryColor,
++++++++++++++++++),
++++++++++++++++++onChanged:+(v)+{
++++++++++++++++
++++++++++++++++++},
++++++++++++++++++title:+Text("Checked"),
++++++++++++++++),
++++++++++++++),|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|5569152|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>Theme(
 data: ThemeData(
 checkboxTheme: CheckboxThemeData(
 shape: RoundedRectangleBorder(
 borderRadius: BorderRadius.circular(25)))),
 child: CheckboxListTile(
 value: model.specialSale,
 secondary: Icon(
 CustomIcons.percentage,
 color: Theme.of(context).primaryColor,
 ),
 onChanged: (v) {
 
 },
 title: Text(&quot;Checked&quot;),
 ),
 ),
</code></pre>

Expecting the checkbox in circular shape with inside right tick mark

How to make checkbox shape to circular using flutter

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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