scrumlab_keyboard_visibility 1.0.0+nullSafety

Flutter plugin for discovering the state of the soft-keyboard visibility on Android and iOS.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:scrumlab_keyboard_visibility/scrumlab_keyboard_visibility.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Keyboard visibility example',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: KeyboardVisibilityExample(),
    );
  }
}

class KeyboardVisibilityExample extends StatefulWidget {
  KeyboardVisibilityExample({Key key}) : super(key: key);

  @override
  _KeyboardVisibilityExampleState createState() =>
      _KeyboardVisibilityExampleState();
}

class _KeyboardVisibilityExampleState extends State<KeyboardVisibilityExample> {
  KeyboardVisibilityNotification _keyboardVisibility =
      new KeyboardVisibilityNotification();
  int _keyboardVisibilitySubscriberId;
  bool _keyboardState;

  @protected
  void initState() {
    super.initState();

    _keyboardState = _keyboardVisibility.isKeyboardVisible;

    _keyboardVisibilitySubscriberId = _keyboardVisibility.addNewListener(
      onChange: (bool visible) {
        setState(() {
          _keyboardState = visible;
        });
      },
    );
  }

  @override
  void dispose() {
    _keyboardVisibility.removeListener(_keyboardVisibilitySubscriberId);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Keyboard visibility example'),
      ),
      body: Center(
        child: Padding(
            padding: EdgeInsets.all(24.0),
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: <Widget>[
                TextField(
                  keyboardType: TextInputType.text,
                  decoration: InputDecoration(
                    labelText: 'Input box for keyboard test',
                  ),
                ),
                Container(height: 60.0),
                Text(
                  'The current state of the keyboard is: ' +
                      (_keyboardState ? 'VISIBLE' : 'NOT VISIBLE'),
                ),
              ],
            )),
      ),
    );
  }
}