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Flutter

              
                import 'package:flutter/material.dart';

class TapboxC extends StatefulWidget {
  TapboxC({Key key, this.active: false, @required this.onChanged})
      : super(key: key);

  final bool active;
  final ValueChanged<bool> onChanged;

  @override
  TapboxCState createState() => new TapboxCState();
}

class TapboxCState extends State<TapboxC> {
  bool _highlight = false;

  void _handleTapDown(TapDownDetails details) {
    setState(() {
      _highlight = true;
    });
  }

  void _handleTapUp(TapUpDetails details) {
    setState(() {
      _highlight = false;
    });
  }

  void _handleTapCancel() {
    setState(() {
      _highlight = false;
    });
  }

  void _handleTap() {
    widget.onChanged(!widget.active);
  }

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
        onTapDown: _handleTapDown,
        onTapUp: _handleTapUp,
        onTap: _handleTap,
        onTapCancel: _handleTapCancel,
        child: Container(
          child: Center(
            child: Text(
              widget.active ? "Active" : "Inactive",
              style: TextStyle(
                fontSize: 32.0,
                color: Colors.white,
              ),
              textDirection: TextDirection.ltr,
            ),
          ),
          width: 200.0,
          height: 200.0,
          decoration: BoxDecoration(
            color: widget.active ? Colors.lightGreen[700] : Colors.grey[600],
            border: _highlight
                ? Border.all(color: Colors.teal[700], width: 10.0)
                : null,
          ),
        ));
  }
}

void main() {
  runApp(ParentWidget());
}

class ParentWidget extends StatefulWidget {
  @override
  _ParentWidgetState createState() => _ParentWidgetState();
}

class _ParentWidgetState extends State<ParentWidget> {
  bool _active = false;
  void _handleTapboxChanged(bool newValue) {
    setState(() {
      _active = newValue;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Container(
      child: TapboxC(
        active: _active,
        onChanged: _handleTapboxChanged,
      ),
    );
  }
}

              
            
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999px

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