80 lines
No EOL
3 KiB
Dart
80 lines
No EOL
3 KiB
Dart
import 'package:flutter/material.dart';
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class ExpandingInputFab extends StatefulWidget {
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const ExpandingInputFab({this.onExpansionChanged, this.onInputChanged, super.key});
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final Function(bool expanded)? onExpansionChanged;
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final Function(String text)? onInputChanged;
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@override
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State<StatefulWidget> createState() => _ExpandingInputFabState();
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}
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class _ExpandingInputFabState extends State<ExpandingInputFab> {
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final TextEditingController _inputController = TextEditingController();
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final FocusNode _inputFocusNode = FocusNode();
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bool _isExtended = false;
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@override
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Widget build(BuildContext context) {
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final screenWidth = MediaQuery.of(context).size.width;
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return Padding(
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padding: const EdgeInsets.all(16.0),
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child: Row(
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mainAxisSize: MainAxisSize.max,
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mainAxisAlignment: MainAxisAlignment.end,
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children: [
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AnimatedSize(
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alignment: Alignment.bottomRight,
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duration: const Duration(milliseconds: 200),
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reverseDuration: const Duration(milliseconds: 200),
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curve: Curves.easeInOut,
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child: Material(
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elevation: 4,
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borderRadius: BorderRadius.circular(16),
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color: Theme.of(context).colorScheme.primaryContainer,
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child: Row(
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mainAxisAlignment: MainAxisAlignment.end,
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mainAxisSize: MainAxisSize.min,
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children: [
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SizedBox(
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width: _isExtended ? screenWidth * 0.75 : 0.0,
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child: _isExtended ? TextField(
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focusNode: _inputFocusNode,
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onChanged: widget.onInputChanged,
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controller: _inputController,
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decoration: const InputDecoration(
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border: OutlineInputBorder(
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borderSide: BorderSide.none,
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),
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isDense: true,
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contentPadding: EdgeInsets.symmetric(vertical: 0, horizontal: 16),
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),
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) : null,
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),
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Padding(
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padding: const EdgeInsets.all(4.0),
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child: IconButton(
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onPressed: () {
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setState(() {
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_isExtended = !_isExtended;
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});
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if (_isExtended) _inputFocusNode.requestFocus();
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_inputController.clear();
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widget.onInputChanged?.call("");
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widget.onExpansionChanged?.call(_isExtended);
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},
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splashRadius: 16,
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iconSize: 28,
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icon: _isExtended ? const Icon(Icons.close) : const Icon(Icons.person_search),
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),
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)
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],
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),
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),
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),
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],
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),
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);
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}
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} |