使用以下代码进行 Package ：

GestureDetector(
             onTap: () {
              /* Hide Keyboard */
             FocusManager.instance.primaryFocus?.unfocus();
       },
)

如果keyboard已经打开，我想您可以先关闭它，然后再单击其他GestureDetector小部件
比如：

class MyWidget extends StatefulWidget {
  @override
  _MyWidgetState createState() => _MyWidgetState();
}

class _MyWidgetState extends State<MyWidget> {
  final _textController = TextEditingController();
  bool _isKeyboardOpen = false;

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: () {
        // Close keyboard if it is open
        if (_isKeyboardOpen) {
          FocusScope.of(context).unfocus();
          _isKeyboardOpen = false;
        }
      },
      child: Scaffold(
        appBar: AppBar(title: Text('My Widget')),
        body: Column(
          children: [
            TextField(
              controller: _textController,
              onTap: () {
                // Set keyboard open flag to true when text input is tapped
                _isKeyboardOpen = true;
              },
            ),
            GestureDetector(
              onTap: () {
                // Handle tap on this widget
                print('Tapped on GestureDetector');
              },
              child: Container(
                width: 100,
                height: 100,
                color: Colors.blue,
                child: Center(child: Text('Clickable widget')),
              ),
            ),
          ],
        ),
      ),
    );
  }
}

GestureDetector(
             onTap: () {
             FocusScope.of(context).requestFocus(FocusNode());
       },
)