124 lines
3.9 KiB
Dart
124 lines
3.9 KiB
Dart
import 'package:flutter/material.dart';
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class SearchBarWidget extends StatelessWidget {
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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; // 改为必传参数
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final bool autoFocus;
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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; // 新增文本变化回调
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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, // 必须传入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.autoFocus = false,
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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, // 可选文本变化监听
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}) : super(key: key);
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// 公共方法：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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controller.text = newText;
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controller.selection = TextSelection.fromPosition(
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TextPosition(offset: newText.length),
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);
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// 可选：触发文本变化回调
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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: GestureDetector(
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onTap: isClickableOnly ? onInputTap : null,
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child: AbsorbPointer(
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absorbing: isClickableOnly,
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child: TextField(
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controller: controller,
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autofocus: autoFocus,
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readOnly: isClickableOnly,
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style: const TextStyle(fontSize: 15),
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onChanged: onTextChanged, // 监听文本变化
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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: 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: onSearch,
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),
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),
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),
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),
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const SizedBox(width: 10),
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// 搜索按钮
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ElevatedButton(
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onPressed: () => onSearch(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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buttonText,
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style: const TextStyle(
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color: Colors.white,
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fontSize: 16,
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),
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),
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),
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// 重置按钮
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if (showResetButton) const SizedBox(width: 10),
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if (showResetButton)
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ElevatedButton(
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onPressed: () {
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updateText(''); // 使用统一方法清空
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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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resetButtonText,
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style: TextStyle(
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color: Colors.white,
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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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} |