Filter by Widgets


Recognize key inputs from keyboard in flutter

This Article is posted by seven.srikanth@gmail.com at 23-05-2019 18:10:27

You need to use RawKeyboardListener. This is the widget that calls a callback whenever the user presses or releases a key on a keyboard.
A RawKeyboardListener is useful for listening to raw key events and hardware buttons that are represented as keys. Typically used by games and other apps that use keyboard for purposes other than text entry.
Below is the example code for recognizing a backspace. 
FocusScope.of(context).requestFocus(_focusNode);
RawKeyboardListener(
focusNode: _focusNode,
onKey: (RawKeyEvent event) {
if(event.runtimeType == RawKeyDownEvent &&
(even.logicalKey.keyId == KeyCode.backspace)) {
_focusNode.unfocus();
... // your code here
}   
},
child: ...
)
0 Comments
Login to comment.
Recent Comments

Be the first to Comment. You can ask a Query or Share your toughts or Just say thanks.




Recent articles

How to create a persistent bottom sheet in Flutter?

Check out this article on How to create a persistent bottom sheet in Flutter?

Read full post

How to draw a Decorative Horizontal line in Flutter?

Check out this article on How to draw a Decorative Horizontal line in Flutter?

Read full post

How to fetch an Image from Internet in Flutter

Check out this article on How to fetch an Image from Internet in Flutter

Read full post

ListView with Images from the Internet

Check out this article on ListView with Images from the Internet

Read full post

How to show Tooltip in Flutter?

Check out this article on How to show Tooltip in Flutter?

Read full post

How to create BottomNavigationBar in flutter?

Check out this article on How to create BottomNavigationBar in flutter?

Read full post

How to add actions to Appbar?

Check out this article on How to add actions to Appbar?

Read full post

How to open dart devtools in VS code?

Check out this article on How to open dart devtools in VS code?

Read full post

Accessibility features in flutter

Check out this article on Accessibility features in flutter

Read full post

How to create a Slider in Flutter?

Check out this article on How to create a Slider in Flutter?

Read full post

© 2018 - Fluttercentral | Email to me - Seven.srikanth@gmail.com

Except as otherwise noted, this work is licensed under a Creative Commons Attribution 4.0 International License , and code samples are licensed under the BSD License.