120 lines
3.3 KiB
Dart
Executable File
120 lines
3.3 KiB
Dart
Executable File
import 'package:flutter/material.dart';
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import 'package:flutter_screenutil/flutter_screenutil.dart';
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import 'package:country_flags/country_flags.dart';
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import 'package:flutter/foundation.dart';
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class KRCountryFlag extends StatelessWidget {
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final String countryCode;
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final double? width;
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final double? height;
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final bool isCircle;
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final BoxFit fit; // 填充模式
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final bool maintainSize; // 是否保持宽高比
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final Color? bgColor; // 背景色
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final bool clip; // 是否裁剪
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const KRCountryFlag({
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Key? key,
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required this.countryCode,
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this.width,
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this.height,
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this.isCircle = true,
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this.fit = BoxFit.cover, // 默认填充
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this.maintainSize = true, // 默认保持宽高比
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this.bgColor = Colors.white,
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this.clip = true, // 默认裁剪
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}) : super(key: key);
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String _getCountryCode(String code) {
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// 处理特殊国家代码
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final Map<String, String> specialCases = {
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'UK': 'gb',
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'USA': 'us',
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// 添加其他特殊情况...
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};
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return specialCases[code.toUpperCase()] ?? code.toLowerCase();
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}
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@override
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Widget build(BuildContext context) {
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// 🔍 调试日志
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// if (kDebugMode) {
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// print('🏳️ KRCountryFlag.build 被调用');
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// }
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// if (kDebugMode) {
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// print(' - 原始 countryCode: "$countryCode"');
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// }
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// if (kDebugMode) {
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// print(' - countryCode.isEmpty: ${countryCode.isEmpty}');
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// }
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// if (kDebugMode) {
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// print(' - countryCode.length: ${countryCode.length}');
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// }
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final processedCode = _getCountryCode(countryCode);
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// if (kDebugMode) {
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// print(' - 处理后 code: "$processedCode"');
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// }
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// 如果国家代码为空，显示占位符
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if (countryCode.isEmpty) {
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if (kDebugMode) {
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print(' ❌ 国家代码为空，显示占位符');
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}
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return Container(
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width: width ?? 50.w,
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height: height ?? 50.w,
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decoration: BoxDecoration(
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color: Colors.grey[300],
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shape: isCircle ? BoxShape.circle : BoxShape.rectangle,
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borderRadius: !isCircle ? BorderRadius.circular(8.w) : null,
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),
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child: Icon(Icons.flag, color: Colors.grey[600], size: 24.w),
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);
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}
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// 计算实际尺寸
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final double actualWidth = width ?? 50.w;
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final double actualHeight = maintainSize ? actualWidth : (height ?? 50.w);
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if (kDebugMode) {
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print(' ✅ 尝试加载国旗: $processedCode');
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}
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Widget flagWidget = CountryFlag.fromCountryCode(
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processedCode,
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width: actualWidth,
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height: actualHeight,
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);
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// 添加填充模式
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flagWidget = SizedBox(
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width: actualWidth,
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height: actualHeight,
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child: FittedBox(
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fit: fit,
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child: flagWidget,
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),
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);
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// 添加背景和形状
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flagWidget = Container(
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width: actualWidth,
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height: actualHeight,
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decoration: BoxDecoration(
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color: bgColor,
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shape: isCircle ? BoxShape.circle : BoxShape.rectangle,
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borderRadius: !isCircle ? BorderRadius.circular(8.w) : null,
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),
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child: flagWidget,
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);
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// 最后添加裁剪
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if (clip && isCircle) {
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flagWidget = ClipOval(child: flagWidget);
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}
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return flagWidget;
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}
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} |