Keyboard Height Emitter Plugin for Flutter #

Credit to the keyboard_height_plugin author at https://github.com/nschairer/keyboard_height_plugin/tree/main

This up to date fork fixes a couple of issues with the plugin:

• you could only use it on a single route at a time, pushing a new route with the plugin would silently drop the listener on the route under it.
• Modern android devices have a toolbar included on the keyboard. The hight wasn't being reported.

keyboard_height_emitter is a Flutter plugin for iOS and Android that provides the keyboard size before the keyboard animation occurs for showing or hiding it. This helps eliminate lag when positioning widgets around the keyboard, such as placing a TextField above the keyboard.

Installation #

To install keyboard_height_emitter, add it to your pubspec.yaml file under the dependencies section:

dependencies:
  keyboard_height_emitter: ^0.0.1

Usage #

To use the keyboard_height_emitter, first import it in your Dart file:

import 'package:keyboard_height_emitter/keyboard_height_emitter.dart';

Next, create a stateful widget and declare a variable to store the keyboard height and create an instance of the KeyboardHeightEmitter:

class _HomePageState extends State<HomePage>; {
  double _keyboardHeight = 0;
  final KeyboardHeightEmitter _keyboardHeightEmitter = KeyboardHeightEmitter();
  // ... rest of code ...
}

Then, initialize the KeyboardHeightEmitter in your initState method and listen for changes in the keyboard height:

@override
void initState() {
  super.initState();
  _keyboardHeightEmitter.onKeyboardHeightChanged((double height) {
    setState(() {
      _keyboardHeight = height;
    });
  });
}

Use the _keyboardHeight variable to position your widgets around the keyboard.

Example #

For a complete example on how to use the keyboard_height_emitter, please refer to the example directory in the repository.

Contributing #

If you encounter any issues or have suggestions for improvements, feel free to open an issue or submit a pull request on the project's GitHub repository.

License #

This plugin is licensed under the BSD 3-Clause License.