lxh2875931338/MEIZU-Battery-Healthy
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SAF测试阶段，验证中

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不安的亡命樱
2026-07-05 00:32:28 +08:00
parent dff0f6fb6b
commit 45c69c8ec4
12 changed files with 301 additions and 211 deletions
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lib/main.dart
+3 -1
View File
@@ -20,7 +20,9 @@ class MyApp extends StatelessWidget {
title: '电池健康度',
theme: ThemeData(
fontFamily: 'HarmonyOS_Sans_SC',
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
colorScheme: ColorScheme.fromSeed(
seedColor: const Color.fromARGB(255, 255, 255, 255),
),
useMaterial3: true,
),
home: const BatteryHealthPage(),
lib/pages/battery_health_page.dart
+12 -6
View File
@@ -283,18 +283,23 @@ class _BatteryHealthPageState extends State<BatteryHealthPage>
),
ElevatedButton(
onPressed: () async {
final ctx = context;
Navigator.pop(ctx);
// 触发关闭
Navigator.pop(context);
// 延迟确保动画完成
await Future.delayed(const Duration(milliseconds: 150));
final result = await _safService.requestPermission();
if (!mounted) return;
if (result.success) {
if (!mounted) return;
setState(() {
_safState = SafPermissionState.authorized;
});
readBatteryCapacity();
} else {
if (!mounted) return;
ScaffoldMessenger.of(ctx).showSnackBar(
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(result.errorMessage ?? '授权失败，请重试'),
backgroundColor: Colors.red,
@@ -303,7 +308,7 @@ class _BatteryHealthPageState extends State<BatteryHealthPage>
_showSafAuthorizationDialog();
}
},
child: const Text('选择文件夹'), // 🟢 加这行
child: const Text('选择文件夹'),
),
],
),
@@ -774,6 +779,7 @@ class _BatteryHealthPageState extends State<BatteryHealthPage>
WidgetsBinding.instance.addPostFrameCallback((_) async {
await _safService.init();
_safState = await _safService.getPermissionState();
if (_safState == SafPermissionState.unauthorized ||
_safState == SafPermissionState.expired) {
if (mounted) _showSafAuthorizationDialog();
lib/services/saf_storage_service.dart
+59 -51
View File
@@ -1,4 +1,3 @@
import 'dart:io';
import 'package:flutter/foundation.dart';
import 'package:flutter/services.dart';
import 'package:shared_preferences/shared_preferences.dart';
@@ -12,55 +11,49 @@ class SafStorageService {
static const MethodChannel _channel = MethodChannel(
'com.lxh.battery_health/saf',
);
static const String _prefKeySafPath = 'saf_storage_path';
String? _cachedPath;
static const String _prefKeySafUri = 'saf_storage_uri';
String? _cachedUri;
// 🟢 初始化时从 SharedPreferences 恢复 URI
Future<void> init() async {
final prefs = await SharedPreferences.getInstance();
_cachedPath = prefs.getString(_prefKeySafPath);
if (kDebugMode) {
print('[SAF] 初始化，缓存路径: $_cachedPath');
try {
final prefs = await SharedPreferences.getInstance();
_cachedUri = prefs.getString(_prefKeySafUri);
if (kDebugMode) {
print('[SAF] 初始化，缓存 URI: $_cachedUri');
}
} catch (e) {
if (kDebugMode) {
print('[SAF] 初始化失败: $e');
}
_cachedUri = null;
}
}
Future<SafPermissionState> getPermissionState() async {
if (_cachedPath == null || _cachedPath!.isEmpty) {
if (_cachedUri == null || _cachedUri!.isEmpty) {
return SafPermissionState.unauthorized;
}
try {
final dir = Directory(_cachedPath!);
if (!await dir.exists()) {
_clearCache();
return SafPermissionState.expired;
}
return SafPermissionState.authorized;
} catch (e) {
_clearCache();
return SafPermissionState.expired;
}
// 🟢 简化：直接返回 authorized，相信本地缓存的 URI
return SafPermissionState.authorized;
}
Future<SafAuthorizationResult> requestPermission() async {
try {
final String? selectedPath = await _channel.invokeMethod('selectFolder');
final String? uriString = await _channel.invokeMethod('selectFolder');
if (selectedPath == null || selectedPath.isEmpty) {
if (uriString == null || uriString.isEmpty) {
return SafAuthorizationResult.denied();
}
// 验证路径是否包含 mbattery_charger
if (!selectedPath.contains('mbattery_charger')) {
return SafAuthorizationResult.error('请选择 mbattery_charger 文件夹');
}
_cachedPath = selectedPath;
await _savePath(selectedPath);
_cachedUri = uriString;
await _saveUri(uriString);
if (kDebugMode) {
print('[SAF] 授权成功，路径: $selectedPath');
print('[SAF] 授权成功，URI: $uriString');
}
return SafAuthorizationResult.success(selectedPath);
return SafAuthorizationResult.success(uriString);
} catch (e) {
if (kDebugMode) {
print('[SAF] 授权失败: $e');
@@ -73,8 +66,11 @@ class SafStorageService {
final state = await getPermissionState();
if (state != SafPermissionState.authorized) return false;
try {
final file = File('${_cachedPath!}/$fileName');
return await file.exists();
final files = await _channel.invokeMethod('listFiles');
if (files is List) {
return files.contains(fileName);
}
return false;
} catch (e) {
return false;
}
@@ -84,9 +80,11 @@ class SafStorageService {
final state = await getPermissionState();
if (state != SafPermissionState.authorized) return [];
try {
final file = File('${_cachedPath!}/$fileName');
if (!await file.exists()) return [];
return await file.readAsLines();
final String? content = await _channel.invokeMethod('readLogFile', {
'fileName': fileName,
});
if (content == null || content.isEmpty) return [];
return content.split('\n');
} catch (e) {
if (kDebugMode) {
print('[SAF] 读取文件失败: $e');
@@ -99,13 +97,11 @@ class SafStorageService {
final state = await getPermissionState();
if (state != SafPermissionState.authorized) return [];
try {
final dir = Directory(_cachedPath!);
if (!await dir.exists()) return [];
final entities = await dir.list().toList();
return entities
.where((e) => e is File)
.map((e) => e.path.split(Platform.pathSeparator).last)
.toList();
final result = await _channel.invokeMethod('listFiles');
if (result is List) {
return result.cast<String>();
}
return [];
} catch (e) {
if (kDebugMode) {
print('[SAF] 列出文件失败: $e');
@@ -120,18 +116,30 @@ class SafStorageService {
}
void _clearCache() {
_cachedPath = null;
_savePath(null);
_cachedUri = null;
_saveUri(null);
}
Future<void> _savePath(String? path) async {
final prefs = await SharedPreferences.getInstance();
if (path != null && path.isNotEmpty) {
await prefs.setString(_prefKeySafPath, path);
} else {
await prefs.remove(_prefKeySafPath);
Future<void> _saveUri(String? uri) async {
try {
final prefs = await SharedPreferences.getInstance();
if (uri != null && uri.isNotEmpty) {
await prefs.setString(_prefKeySafUri, uri);
if (kDebugMode) {
print('[SAF] 保存 URI 成功: $uri');
}
} else {
await prefs.remove(_prefKeySafUri);
if (kDebugMode) {
print('[SAF] 清除 URI');
}
}
} catch (e) {
if (kDebugMode) {
print('[SAF] 保存 URI 失败: $e');
}
}
}
String? get cachedPath => _cachedPath;
String? get cachedUri => _cachedUri;
}