Flutter Dismissing The Keyboard Automatically When Clicking The TextField

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Introduction

As a beginner in Flutter, you may encounter various issues that can be frustrating to resolve. One such issue is the automatic dismissal of the keyboard when clicking on a TextField in Flutter. This problem can be particularly challenging when you're trying to create a seamless user experience. In this article, we'll explore the reasons behind this issue and provide a step-by-step solution to dismiss the keyboard automatically when clicking on a TextField in Flutter.

Understanding the Issue

When you create a TextField in Flutter, it automatically focuses on the text field when the user clicks on it. However, this can lead to the keyboard being dismissed when the user clicks on the TextField again. This issue can be caused by the FocusNode associated with the TextField, which is responsible for managing the focus of the text field.

The Role of FocusNode

A FocusNode is an object that manages the focus of a widget. When a FocusNode is associated with a TextField, it allows the text field to receive focus and dismiss the keyboard when the user clicks on it. However, when the user clicks on the TextField again, the FocusNode can dismiss the keyboard, causing the issue we're trying to resolve.

Using Go Router

You mentioned that you're using Go Router for navigation in your Flutter app. Go Router is a popular library for navigation in Flutter that provides a simple and efficient way to navigate between screens. However, when using Go Router, you may encounter issues with the keyboard dismissal when clicking on a TextField.

Solution: Dismissing the Keyboard Automatically

To dismiss the keyboard automatically when clicking on a TextField in Flutter, you can use the following approach:

Step 1: Create a Custom TextField

Create a custom TextField widget that wraps the original TextField widget. This custom widget will handle the focus and dismissal of the keyboard.

class CustomTextField extends StatefulWidget {
  @override
  _CustomTextFieldState createState() => _CustomTextFieldState();
}

class _CustomTextFieldState extends State<CustomTextField> {
final _focusNode = FocusNode();


@override
void initState() {
super.initState();
_focusNode.requestFocus();
}


@override
void dispose() {
_focusNode.dispose();
super.dispose();
}


@override
Widget build(BuildContext context) 
return TextField(
focusNode _focusNode,
onSubmitted: (value) {
// Handle the submitted value
,
decoration: InputDecoration(
labelText: 'Enter your text',
border: OutlineInputBorder(),
),
);
}
}

Step 2: Use the Custom TextField

Use the custom TextField widget in your app instead of the original TextField widget.

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('My App'),
      ),
      body: Column(
        children: [
          CustomTextField(),
          ElevatedButton(
            onPressed: () {
              // Handle the button press
            },
            child: Text('Submit'),
          ),
        ],
      ),
    );
  }
}

Step 3: Handle the Keyboard Dismissal

To handle the keyboard dismissal when clicking on the TextField, you can use the FocusNode associated with the TextField. When the user clicks on the TextField, the FocusNode will dismiss the keyboard.

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('My App'),
      ),
      body: Column(
        children: [
          CustomTextField(),
          ElevatedButton(
            onPressed: () {
              _focusNode.requestFocus();
            },
            child: Text('Submit'),
          ),
        ],
      ),
    );
  }
}

Conclusion

In this article, we explored the issue of the keyboard being dismissed automatically when clicking on a TextField in Flutter. We created a custom TextField widget that handles the focus and dismissal of the keyboard, and used it in our app to resolve the issue. By following these steps, you can dismiss the keyboard automatically when clicking on a TextField in Flutter.

Additional Tips

  • When using Go Router, make sure to handle the keyboard dismissal in the onPressed callback of the button.
  • Use the FocusNode associated with the TextField to handle the keyboard dismissal.
  • Create a custom TextField widget to handle the focus and dismissal of the keyboard.

Example Use Cases

  • Creating a login form with a TextField for the username and password.
  • Creating a search bar with a TextField for the search query.
  • Creating a form with multiple TextFields for different fields.

Code Snippets

  • Custom TextField widget:
class CustomTextField extends StatefulWidget {
  @override
  _CustomTextFieldState createState() => _CustomTextFieldState();
}

class _CustomTextFieldState extends State<CustomTextField> {
final _focusNode = FocusNode();


@override
void initState() {
super.initState();
_focusNode.requestFocus();
}


@override
void dispose() {
_focusNode.dispose();
super.dispose();
}


@override
Widget build(BuildContext context) 
return TextField(
focusNode _focusNode,
onSubmitted: (value) {
// Handle the submitted value
,
decoration: InputDecoration(
labelText: 'Enter your text',
border: OutlineInputBorder(),
),
);
}
}

  • Using the custom TextField widget:
class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('My App'),
      ),
      body: Column(
        children: [
          CustomTextField(),
          ElevatedButton(
            onPressed: () {
              // Handle the button press
            },
            child: Text('Submit'),
          ),
        ],
      ),
    );
  }
}

API References

  • FocusNode: A class that manages the focus of a widget.
  • TextField: A widget that allows the user to enter text.
  • ElevatedButton: A widget that displays a button with an elevation effect.
  • Scaffold: A widget that provides a basic material design visual layout structure.
  • AppBar: A widget that displays an app bar.
  • Column: A widget that displays its children in a vertical column.
    Flutter Dismissing the Keyboard Automatically When Clicking the TextField: Q&A ================================================================================

Introduction

In our previous article, we explored the issue of the keyboard being dismissed automatically when clicking on a TextField in Flutter. We created a custom TextField widget that handles the focus and dismissal of the keyboard, and used it in our app to resolve the issue. In this article, we'll answer some frequently asked questions about dismissing the keyboard automatically when clicking on a TextField in Flutter.

Q: Why is the keyboard being dismissed automatically when clicking on a TextField?

A: The keyboard is being dismissed automatically when clicking on a TextField because of the FocusNode associated with the TextField. When the user clicks on the TextField, the FocusNode dismisses the keyboard.

Q: How can I prevent the keyboard from being dismissed automatically when clicking on a TextField?

A: To prevent the keyboard from being dismissed automatically when clicking on a TextField, you can use a custom TextField widget that handles the focus and dismissal of the keyboard. You can create a custom TextField widget by wrapping the original TextField widget with a FocusNode and handling the focus and dismissal of the keyboard in the onPressed callback of the button.

Q: How do I create a custom TextField widget that handles the focus and dismissal of the keyboard?

A: To create a custom TextField widget that handles the focus and dismissal of the keyboard, you can use the following code:

class CustomTextField extends StatefulWidget {
  @override
  _CustomTextFieldState createState() => _CustomTextFieldState();
}

class _CustomTextFieldState extends State<CustomTextField> {
final _focusNode = FocusNode();


@override
void initState() {
super.initState();
_focusNode.requestFocus();
}


@override
void dispose() {
_focusNode.dispose();
super.dispose();
}


@override
Widget build(BuildContext context) 
return TextField(
focusNode _focusNode,
onSubmitted: (value) {
// Handle the submitted value
,
decoration: InputDecoration(
labelText: 'Enter your text',
border: OutlineInputBorder(),
),
);
}
}

Q: How do I use the custom TextField widget in my app?

A: To use the custom TextField widget in your app, you can replace the original TextField widget with the custom TextField widget in your app's code. You can use the custom TextField widget in your app's code by importing the custom TextField widget and using it in your app's code.

Q: Can I use the custom TextField widget with Go Router?

A: Yes, you can use the custom TextField widget with Go Router. To use the custom TextField widget with Go Router, you can create a custom TextField widget that handles the focus and dismissal of the keyboard and use it in your app's code.

Q: How do I handle the keyboard dismissal when clicking on a TextField with Go Router?

A: To handle the keyboard dismissal when clicking on a TextField with Go Router, you can use the onPressed callback of the button to handle the keyboard dismissal. You can use the following code to handle the keyboard dismissal when clicking on a TextField with Go Router:

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('My App'),
      ),
      body: Column(
        children: [
          CustomTextField(),
          ElevatedButton(
            onPressed: () {
              _focusNode.requestFocus();
            },
            child: Text('Submit'),
          ),
        ],
      ),
    );
  }
}

Conclusion

In this article, we answered some frequently asked questions about dismissing the keyboard automatically when clicking on a TextField in Flutter. We created a custom TextField widget that handles the focus and dismissal of the keyboard and used it in our app to resolve the issue. We also answered questions about using the custom TextField widget with Go Router and handling the keyboard dismissal when clicking on a TextField with Go Router.

Additional Tips

  • Use a custom TextField widget to handle the focus and dismissal of the keyboard.
  • Handle the keyboard dismissal in the onPressed callback of the button.
  • Use the FocusNode associated with the TextField to handle the keyboard dismissal.

Example Use Cases

  • Creating a login form with a TextField for the username and password.
  • Creating a search bar with a TextField for the search query.
  • Creating a form with multiple TextFields for different fields.

Code Snippets

  • Custom TextField widget:
class CustomTextField extends StatefulWidget {
  @override
  _CustomTextFieldState createState() => _CustomTextFieldState();
}

class _CustomTextFieldState extends State<CustomTextField> {
final _focusNode = FocusNode();


@override
void initState() {
super.initState();
_focusNode.requestFocus();
}


@override
void dispose() {
_focusNode.dispose();
super.dispose();
}


@override
Widget build(BuildContext context) 
return TextField(
focusNode _focusNode,
onSubmitted: (value) {
// Handle the submitted value
,
decoration: InputDecoration(
labelText: 'Enter your text',
border: OutlineInputBorder(),
),
);
}
}

  • Using the custom TextField widget:
class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('My App'),
      ),
      body: Column(
        children: [
          CustomTextField(),
          ElevatedButton(
            onPressed: () {
              _focusNode.requestFocus();
            },
            child: Text('Submit'),
          ),
        ],
      ),
    );
  }
}

API References

  • FocusNode: A class that manages the focus of a widget.
  • TextField: A widget that allows the user to enter text.
  • ElevatedButton: A widget that displays a button with an elevation effect.
  • Scaffold: A widget that provides a basic material visual layout structure.
  • AppBar: A widget that displays an app bar.
  • Column: A widget that displays its children in a vertical column.