135 lines
4.0 KiB
Dart
135 lines
4.0 KiB
Dart
import 'package:flutter/material.dart';
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class SearchBarWidget extends StatefulWidget {
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final String hintText;
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final String buttonText;
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final ValueChanged<String> onSearch;
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final TextEditingController controller;
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final bool showResetButton;
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final String resetButtonText;
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final VoidCallback? onReset;
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final bool isClickableOnly;
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final VoidCallback? onInputTap;
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final ValueChanged<String>? onTextChanged;
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final bool isShowSearchButton;
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const SearchBarWidget({
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Key? key,
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required this.onSearch,
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required this.controller,
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this.hintText = '请输入关键字',
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this.buttonText = '搜索',
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this.showResetButton = false,
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this.resetButtonText = '重置',
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this.onReset,
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this.isClickableOnly = false,
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this.onInputTap,
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this.onTextChanged,
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this.isShowSearchButton = true,
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}) : super(key: key);
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@override
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_SearchBarWidgetState createState() => _SearchBarWidgetState();
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}
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class _SearchBarWidgetState extends State<SearchBarWidget> {
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late FocusNode _focusNode;
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@override
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void initState() {
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super.initState();
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_focusNode = FocusNode();
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}
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@override
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void dispose() {
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_focusNode.dispose();
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super.dispose();
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}
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/// 更新输入框内容（可在外部调用）
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void updateText(String newText) {
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widget.controller.text = newText;
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widget.controller.selection = TextSelection.fromPosition(
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TextPosition(offset: newText.length),
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);
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widget.onTextChanged?.call(newText);
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}
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@override
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Widget build(BuildContext context) {
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return Row(
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children: [
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Expanded(
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child: TextField(
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focusNode: _focusNode,
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controller: widget.controller,
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readOnly: widget.isClickableOnly,
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autofocus: false,
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style: const TextStyle(fontSize: 15),
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onChanged: widget.onTextChanged,
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onTap: () {
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if (widget.isClickableOnly) {
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// 可点击但不弹出键盘
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widget.onInputTap?.call();
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}
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},
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decoration: InputDecoration(
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filled: true,
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fillColor: const Color(0xFFF5F5F5),
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prefixIcon: const Icon(Icons.search_rounded),
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hintText: widget.hintText,
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(5),
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borderSide: BorderSide.none,
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),
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isDense: true,
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contentPadding: const EdgeInsets.symmetric(vertical: 8),
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),
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onSubmitted: widget.onSearch,
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),
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),
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const SizedBox(width: 10),
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if (widget.isShowSearchButton)
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ElevatedButton(
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onPressed: () => widget.onSearch(widget.controller.text.trim()),
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.green,
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padding: const EdgeInsets.symmetric(horizontal: 15, vertical: 8),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(5),
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),
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elevation: 4,
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shadowColor: Colors.black45,
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),
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child: Text(
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widget.buttonText,
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style: const TextStyle(color: Colors.white, fontSize: 16),
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),
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),
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if (widget.showResetButton) const SizedBox(width: 10),
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if (widget.showResetButton)
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ElevatedButton(
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onPressed: () {
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updateText('');
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widget.onReset?.call();
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},
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.blue,
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padding: const EdgeInsets.symmetric(horizontal: 15, vertical: 8),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(5),
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),
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elevation: 1,
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shadowColor: Colors.black26,
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),
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child: Text(
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widget.resetButtonText,
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style: const TextStyle(color: Colors.white, fontSize: 16),
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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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