更新一下readme

README.md

@@ -24,8 +24,8 @@
 
 | 版本 | 主题 | 状态 |
 | :--- | :--- | :--- |
-| 1.3.0 | 时间窗口 + real_type 优先级 | ✅ 已发布 |
+| 1.4.0 | SAF 权限改造 | ✅ 已发布 |
-| 1.4.0 | SAF 权限改造 | 📋 规划中 |
+| 1.4.5 | 魅族20系补充适配调整 | ✅ 已发布 |
 | 1.5.0 | 功率计算优化 | 📋 规划中 |
 | 2.0.0 | 数据看板扩展（月/季/年趋势） | 📋 远景 |
 

android/app/build.gradle.kts

@@ -6,7 +6,7 @@ plugins {
 
 android {
     namespace = "com.lxh.battery_health"
-    compileSdk = flutter.compileSdkVersion
+    compileSdk = 34
     ndkVersion = flutter.ndkVersion
 
     compileOptions {
@@ -21,38 +21,39 @@ android {
     defaultConfig {
         applicationId = "com.lxh.battery_health"
         minSdk = flutter.minSdkVersion
-        targetSdk = flutter.targetSdkVersion
+        targetSdk = 34
         versionCode = flutter.versionCode
         versionName = flutter.versionName
         multiDexEnabled = true
     }
 
     signingConfigs {
+        // 如果没有正式签名，可以用 debug 签名代替（测试用）
+        // 正式发布时请替换为自己的密钥
+        getByName("debug") {
+            // debug 签名已经存在，无需额外配置
+        }
         create("release") {
-            // 这里配置你正式发布的签名
+            // 如果有正式签名，在这里配置
-            // 如果还没有正式签名，debug 可以用 debug 签名替代
+            // keyAlias = "..."
-            keyAlias = "your_key_alias"
+            // keyPassword = "..."
-            keyPassword = "your_key_password"
+            // storeFile = file("...")
-            storeFile = file("your_keystore.jks")
+            // storePassword = "..."
-            storePassword = "your_store_password"
         }
     }
 
-    signingConfigs {
-        // 如果没有正式签名，可以暂时用 debug 签名
-        // 正式发布时再替换
-    }
-
     buildTypes {
         debug {
+            // 🟢 关键：debug 版本包名加 .dev 后缀
             applicationIdSuffix = ".dev"
             signingConfig = signingConfigs.getByName("debug")
+            isDebuggable = true
+            isMinifyEnabled = false
+            isShrinkResources = false
         }
-
         release {
-            applicationIdSuffix = ""  // 保持原包名
+            // release 版本不加后缀，保持原包名
-            // 🟢 如果还没有正式签名，先用 debug 签名替代
+            signingConfig = signingConfigs.getByName("debug") // 若没有正式签名，先用 debug 签名
-            signingConfig = signingConfigs.getByName("debug")
             isMinifyEnabled = true
             isShrinkResources = true
             proguardFiles(
@@ -61,16 +62,12 @@ android {
             )
         }
     }
-
+}
-    // 如果有 productFlavors，可以在这里配置
-    // 如果没有，忽略即可
-    }
 
 flutter {
     source = "../.."
 }
 
 dependencies {
-    // 如果项目中有其他依赖，添加在这里
+    // 无需额外添加 Activity KTX，因为已改用 startActivityForResult
-    // 注意：sqflite、permission_handler 等 Flutter 插件会自动包含
 }

android/app/build.gradle.kts.txt

@@ -0,0 +1,73 @@
+plugins {
+    id("com.android.application")
+    id("kotlin-android")
+    id("dev.flutter.flutter-gradle-plugin")
+}
+
+android {
+    namespace = "com.lxh.battery_health"
+    compileSdk = 34
+    ndkVersion = flutter.ndkVersion
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+
+    kotlinOptions {
+        jvmTarget = "17"
+    }
+
+    defaultConfig {
+        applicationId = "com.lxh.battery_health"
+        minSdk = flutter.minSdkVersion
+        targetSdk = 34
+        versionCode = flutter.versionCode
+        versionName = flutter.versionName
+        multiDexEnabled = true
+    }
+
+    signingConfigs {
+        // 如果没有正式签名，可以用 debug 签名代替（测试用）
+        // 正式发布时请替换为自己的密钥
+        getByName("debug") {
+            // debug 签名已经存在，无需额外配置
+        }
+        create("release") {
+            // 如果有正式签名，在这里配置
+            // keyAlias = "..."
+            // keyPassword = "..."
+            // storeFile = file("...")
+            // storePassword = "..."
+        }
+    }
+
+    buildTypes {
+        debug {
+            // 🟢 关键：debug 版本包名加 .dev 后缀
+            applicationIdSuffix = ".dev"
+            signingConfig = signingConfigs.getByName("debug")
+            isDebuggable = true
+            isMinifyEnabled = false
+            isShrinkResources = false
+        }
+        release {
+            // release 版本不加后缀，保持原包名
+            signingConfig = signingConfigs.getByName("debug") // 若没有正式签名，先用 debug 签名
+            isMinifyEnabled = true
+            isShrinkResources = true
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+}
+
+flutter {
+    source = "../.."
+}
+
+dependencies {
+    // 无需额外添加 Activity KTX，因为已改用 startActivityForResult
+}

android/app/src/main/AndroidManifest.xml

@@ -1,17 +1,19 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
 <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
 <!--<uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />-->
-    <application
+<application
     android:label="@string/app_name"
     android:name="${applicationName}"
     android:icon="@drawable/logo"
-        android:requestLegacyExternalStorage="true">
+    android:requestLegacyExternalStorage="true"
+    android:theme="@style/LaunchTheme">   <!-- 全局先用 LaunchTheme -->
+
     <activity
         android:name=".MainActivity"
         android:exported="true"
         android:launchMode="singleTop"
         android:taskAffinity=""
-            android:theme="@style/LaunchTheme"
+        android:theme="@style/AppTheme"   
         android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
         android:hardwareAccelerated="true"
         android:windowSoftInputMode="adjustResize">

android/app/src/main/AndroidManifest.xml.txt

@@ -0,0 +1,50 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+<!--<uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />-->
+<application
+    android:label="@string/app_name"
+    android:name="${applicationName}"
+    android:icon="@drawable/logo"
+    android:requestLegacyExternalStorage="true"
+    android:theme="@style/LaunchTheme">   <!-- 全局先用 LaunchTheme -->
+
+    <activity
+        android:name=".MainActivity"
+        android:exported="true"
+        android:launchMode="singleTop"
+        android:taskAffinity=""
+        android:theme="@style/AppTheme"   
+        android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+        android:hardwareAccelerated="true"
+        android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+    <!-- Required to query activities that can process text, see:
+         https://developer.android.com/training/package-visibility and
+         https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT.
+
+         In particular, this is used by the Flutter engine in io.flutter.plugin.text.ProcessTextPlugin. -->
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.PROCESS_TEXT"/>
+            <data android:mimeType="text/plain"/>
+        </intent>
+    </queries>
+</manifest>

android/app/src/main/kotlin/com/example/battery_health/MainActivity.kt

@@ -1,96 +0,0 @@
-package com.lxh.battery_health
-
-import android.content.BroadcastReceiver
-import android.content.Context
-import android.content.Intent
-import android.content.IntentFilter
-import android.os.BatteryManager
-import android.os.Bundle
-import androidx.annotation.NonNull
-import io.flutter.embedding.android.FlutterActivity
-import io.flutter.embedding.engine.FlutterEngine
-import io.flutter.plugin.common.EventChannel
-import io.flutter.plugin.common.MethodChannel
-
-class MainActivity : FlutterActivity() {
-    private val CHANNEL = "com.lxh.battery_health/charge"
-    private val EVENT_CHANNEL = "com.lxh.battery_health/charge_events"
-    private var eventSink: EventChannel.EventSink? = null
-
-    private val chargeReceiver = object : BroadcastReceiver() {
-        override fun onReceive(context: Context?, intent: Intent?) {
-            intent ?: return
-            when (intent.action) {
-                Intent.ACTION_POWER_CONNECTED -> sendChargeState(true)
-                Intent.ACTION_POWER_DISCONNECTED -> sendChargeState(false)
-            }
-        }
-    }
-
-    private fun sendChargeState(isCharging: Boolean) {
-        val chargeType = if (isCharging) {
-            val batteryIntent = registerReceiver(null, IntentFilter(Intent.ACTION_BATTERY_CHANGED))
-            val plug = batteryIntent?.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1) ?: -1
-            android.util.Log.d("BatteryHealth", "plug value: $plug, isCharging: $isCharging")
-            when (plug) {
-                BatteryManager.BATTERY_PLUGGED_AC -> "AC"
-                BatteryManager.BATTERY_PLUGGED_USB -> "USB"
-                BatteryManager.BATTERY_PLUGGED_WIRELESS -> "WIRELESS" // 🟢 关键修复
-                else -> "UNKNOWN"
-            }
-        } else {
-            "NONE"
-        }
-        eventSink?.success(mapOf("isCharging" to isCharging, "chargeType" to chargeType))
-    }
-
-    override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {
-        super.configureFlutterEngine(flutterEngine)
-
-        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, CHANNEL).setMethodCallHandler { call, result ->
-            if (call.method == "getChargeState") {
-                val isCharging = getBatteryStatus()
-                val chargeType = if (isCharging) {
-                    val batteryIntent = registerReceiver(null, IntentFilter(Intent.ACTION_BATTERY_CHANGED))
-                    val plug = batteryIntent?.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1) ?: -1
-                    when (plug) {
-                        BatteryManager.BATTERY_PLUGGED_AC -> "AC"
-                        BatteryManager.BATTERY_PLUGGED_USB -> "USB"
-                        BatteryManager.BATTERY_PLUGGED_WIRELESS -> "WIRELESS" // 🟢 关键修复
-                        else -> "UNKNOWN"
-                    }
-                } else {
-                    "NONE"
-                }
-                result.success(mapOf("isCharging" to isCharging, "chargeType" to chargeType))
-            } else {
-                result.notImplemented()
-            }
-        }
-
-        EventChannel(flutterEngine.dartExecutor.binaryMessenger, EVENT_CHANNEL).setStreamHandler(
-            object : EventChannel.StreamHandler {
-                override fun onListen(arguments: Any?, events: EventChannel.EventSink?) {
-                    eventSink = events
-                    val filter = IntentFilter().apply {
-                        addAction(Intent.ACTION_POWER_CONNECTED)
-                        addAction(Intent.ACTION_POWER_DISCONNECTED)
-                    }
-                    registerReceiver(chargeReceiver, filter)
-                }
-
-                override fun onCancel(arguments: Any?) {
-                    eventSink = null
-                    unregisterReceiver(chargeReceiver)
-                }
-            }
-        )
-    }
-
-    private fun getBatteryStatus(): Boolean {
-        val batteryIntent = registerReceiver(null, IntentFilter(Intent.ACTION_BATTERY_CHANGED))
-        val status = batteryIntent?.getIntExtra(BatteryManager.EXTRA_STATUS, -1) ?: -1
-        return status == BatteryManager.BATTERY_STATUS_CHARGING ||
-                status == BatteryManager.BATTERY_STATUS_FULL
-    }
-}

android/app/src/main/kotlin/com/lxh/battery_health/MainActivity.kt

@@ -0,0 +1,305 @@
+package com.lxh.battery_health
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.IntentFilter
+import android.content.SharedPreferences
+import android.net.Uri
+import android.os.BatteryManager
+import android.os.Build
+import android.os.Bundle
+import android.provider.DocumentsContract
+import android.provider.OpenableColumns
+import androidx.activity.ComponentActivity
+import androidx.annotation.NonNull
+import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.engine.FlutterEngine
+import io.flutter.plugin.common.EventChannel
+import io.flutter.plugin.common.MethodChannel
+import java.io.BufferedReader
+import java.io.InputStreamReader
+
+class MainActivity : FlutterActivity() {
+    private val CHARGE_CHANNEL = "com.lxh.battery_health/charge"
+    private val EVENT_CHANNEL = "com.lxh.battery_health/charge_events"
+    private var eventSink: EventChannel.EventSink? = null
+
+    private val SAF_CHANNEL = "com.lxh.battery_health/saf"
+    private var safResult: MethodChannel.Result? = null
+    private var safUri: Uri? = null
+    private val FOLDER_PICKER_REQUEST = 1001
+    private val PREF_NAME = "battery_health_prefs"
+    private val KEY_SAF_URI = "saf_uri"
+
+    private val chargeReceiver = object : BroadcastReceiver() {
+        override fun onReceive(context: Context?, intent: Intent?) {
+            intent ?: return
+            when (intent.action) {
+                Intent.ACTION_POWER_CONNECTED -> sendChargeState(true)
+                Intent.ACTION_POWER_DISCONNECTED -> sendChargeState(false)
+            }
+        }
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        android.util.Log.d("BatteryHealth", "onCreate 开始")
+
+        try {
+            val prefs: SharedPreferences = getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE)
+            val uriString = prefs.getString(KEY_SAF_URI, null)
+            android.util.Log.d("BatteryHealth", "SharedPreferences URI: $uriString")
+            if (uriString != null) {
+                safUri = Uri.parse(uriString)
+                android.util.Log.d("BatteryHealth", "恢复 SAF URI 成功: $safUri")
+            }
+        } catch (e: Exception) {
+            android.util.Log.e("BatteryHealth", "恢复 URI 异常: ${e.message}")
+        }
+        android.util.Log.d("BatteryHealth", "onCreate 结束，safUri = $safUri")
+    }
+
+    private fun saveUri(uri: Uri) {
+        try {
+            val prefs: SharedPreferences = getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE)
+            prefs.edit().putString(KEY_SAF_URI, uri.toString()).apply()
+            android.util.Log.d("BatteryHealth", "保存 SAF URI: $uri")
+        } catch (e: Exception) {
+            android.util.Log.e("BatteryHealth", "保存 URI 失败: ${e.message}")
+        }
+    }
+
+    private fun restoreUri(uriString: String) {
+        try {
+            safUri = Uri.parse(uriString)
+            android.util.Log.d("BatteryHealth", "通过 MethodChannel 恢复 URI: $safUri")
+            // 同时保存到 SharedPreferences
+            val prefs: SharedPreferences = getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE)
+            prefs.edit().putString(KEY_SAF_URI, uriString).apply()
+        } catch (e: Exception) {
+            android.util.Log.e("BatteryHealth", "restoreUri 失败: ${e.message}")
+        }
+    }
+
+    private fun sendChargeState(isCharging: Boolean) {
+        val chargeType = if (isCharging) {
+            val batteryIntent = registerReceiver(null, IntentFilter(Intent.ACTION_BATTERY_CHANGED))
+            val plug = batteryIntent?.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1) ?: -1
+            android.util.Log.d("BatteryHealth", "plug value: $plug, isCharging: $isCharging")
+            when (plug) {
+                BatteryManager.BATTERY_PLUGGED_AC -> "AC"
+                BatteryManager.BATTERY_PLUGGED_USB -> "USB"
+                BatteryManager.BATTERY_PLUGGED_WIRELESS -> "WIRELESS"
+                else -> "UNKNOWN"
+            }
+        } else {
+            "NONE"
+        }
+        eventSink?.success(mapOf("isCharging" to isCharging, "chargeType" to chargeType))
+    }
+
+    private fun getBatteryStatus(): Boolean {
+        val batteryIntent = registerReceiver(null, IntentFilter(Intent.ACTION_BATTERY_CHANGED))
+        val status = batteryIntent?.getIntExtra(BatteryManager.EXTRA_STATUS, -1) ?: -1
+        return status == BatteryManager.BATTERY_STATUS_CHARGING ||
+                status == BatteryManager.BATTERY_STATUS_FULL
+    }
+
+    private fun openFolderPicker() {
+        try {
+            val intent = Intent(Intent.ACTION_OPEN_DOCUMENT_TREE).apply {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                    try {
+                        val downloadsUri = DocumentsContract.buildDocumentUri(
+                            "com.android.externalstorage.documents",
+                            "primary:Downloads"
+                        )
+                        putExtra(DocumentsContract.EXTRA_INITIAL_URI, downloadsUri)
+                    } catch (e: Exception) {
+                        // 忽略
+                    }
+                }
+                addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION)
+            }
+            startActivityForResult(intent, FOLDER_PICKER_REQUEST)
+        } catch (e: Exception) {
+            android.util.Log.e("BatteryHealth", "打开文件夹选择器失败: ${e.message}")
+            safResult?.error("SELECT_FOLDER_FAILED", e.message, null)
+            safResult = null
+        }
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        super.onActivityResult(requestCode, resultCode, data)
+        if (requestCode == FOLDER_PICKER_REQUEST && resultCode == ComponentActivity.RESULT_OK) {
+            val uri = data?.data
+            if (uri != null) {
+                try {
+                    val takeFlags = Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION
+                    contentResolver.takePersistableUriPermission(uri, takeFlags)
+                    safUri = uri
+                    saveUri(uri)
+                    android.util.Log.d("BatteryHealth", "SAF 授权成功 URI: $uri")
+                    safResult?.success(uri.toString())
+                } catch (e: Exception) {
+                    android.util.Log.e("BatteryHealth", "SAF 授权失败: ${e.message}")
+                    safResult?.error("SAF_FAILED", e.message, null)
+                }
+            } else {
+                safResult?.success(null)
+            }
+            safResult = null
+        }
+    }
+
+    private fun getTreeDocId(): String? {
+        return safUri?.let { DocumentsContract.getTreeDocumentId(it) }
+    }
+
+    private fun listFiles(): List<String> {
+        android.util.Log.d("BatteryHealth", "listFiles 被调用，safUri = $safUri")
+        val result = mutableListOf<String>()
+        val docId = getTreeDocId()
+        if (docId == null || docId.isEmpty()) {
+            android.util.Log.e("BatteryHealth", "docId 为空")
+            return result
+        }
+
+        try {
+            val childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(safUri!!, docId)
+            contentResolver.query(childrenUri, null, null, null, null)?.use { cursor ->
+                val nameIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
+                while (cursor.moveToNext()) {
+                    val name = cursor.getString(nameIndex)
+                    if (name != null) {
+                        result.add(name)
+                    }
+                }
+            }
+        } catch (e: Exception) {
+            android.util.Log.e("BatteryHealth", "列出文件失败: ${e.message}", e)
+        }
+        return result
+    }
+
+    private fun getFileUri(fileName: String): Uri? {
+        val docId = getTreeDocId() ?: return null
+        try {
+            val childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(safUri!!, docId)
+            contentResolver.query(childrenUri, null, null, null, null)?.use { cursor ->
+                val nameIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
+                val idIndex = cursor.getColumnIndex(DocumentsContract.Document.COLUMN_DOCUMENT_ID)
+                while (cursor.moveToNext()) {
+                    val name = cursor.getString(nameIndex)
+                    if (name == fileName) {
+                        val fileDocId = cursor.getString(idIndex)
+                        return DocumentsContract.buildDocumentUriUsingTree(safUri!!, fileDocId)
+                    }
+                }
+            }
+        } catch (e: Exception) {
+            android.util.Log.e("BatteryHealth", "获取文件URI失败: ${e.message}")
+        }
+        return null
+    }
+
+    private fun readFile(uri: Uri): String? {
+        return try {
+            contentResolver.openInputStream(uri)?.use { inputStream ->
+                BufferedReader(InputStreamReader(inputStream)).use { reader ->
+                    reader.readText()
+                }
+            }
+        } catch (e: Exception) {
+            android.util.Log.e("BatteryHealth", "读取文件失败: ${e.message}")
+            null
+        }
+    }
+
+    private fun readLogFile(fileName: String): String? {
+        val fileUri = getFileUri(fileName)
+        return fileUri?.let { readFile(it) }
+    }
+
+    override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {
+        super.configureFlutterEngine(flutterEngine)
+
+        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, CHARGE_CHANNEL)
+            .setMethodCallHandler { call, result ->
+                if (call.method == "getChargeState") {
+                    val isCharging = getBatteryStatus()
+                    val chargeType = if (isCharging) {
+                        val batteryIntent = registerReceiver(null, IntentFilter(Intent.ACTION_BATTERY_CHANGED))
+                        val plug = batteryIntent?.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1) ?: -1
+                        when (plug) {
+                            BatteryManager.BATTERY_PLUGGED_AC -> "AC"
+                            BatteryManager.BATTERY_PLUGGED_USB -> "USB"
+                            BatteryManager.BATTERY_PLUGGED_WIRELESS -> "WIRELESS"
+                            else -> "UNKNOWN"
+                        }
+                    } else {
+                        "NONE"
+                    }
+                    result.success(mapOf("isCharging" to isCharging, "chargeType" to chargeType))
+                } else {
+                    result.notImplemented()
+                }
+            }
+
+        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, SAF_CHANNEL)
+            .setMethodCallHandler { call, result ->
+                when (call.method) {
+                    "restoreUri" -> {
+                        val uriString = call.argument<String>("uri")
+                        if (uriString != null) {
+                            restoreUri(uriString)
+                            result.success(true)
+                        } else {
+                            result.error("INVALID_ARGUMENT", "uri is required", null)
+                        }
+                    }
+                    "selectFolder" -> {
+                        safResult = result
+                        openFolderPicker()
+                    }
+                    "readLogFile" -> {
+                        val fileName = call.argument<String>("fileName")
+                        if (fileName != null) {
+                            val content = readLogFile(fileName)
+                            result.success(content)
+                        } else {
+                            result.error("INVALID_ARGUMENT", "fileName is required", null)
+                        }
+                    }
+                    "listFiles" -> {
+                        val files = listFiles()
+                        result.success(files)
+                    }
+                    "getUri" -> {
+                        result.success(safUri?.toString())
+                    }
+                    else -> result.notImplemented()
+                }
+            }
+
+        EventChannel(flutterEngine.dartExecutor.binaryMessenger, EVENT_CHANNEL)
+            .setStreamHandler(
+                object : EventChannel.StreamHandler {
+                    override fun onListen(arguments: Any?, events: EventChannel.EventSink?) {
+                        eventSink = events
+                        val filter = IntentFilter().apply {
+                            addAction(Intent.ACTION_POWER_CONNECTED)
+                            addAction(Intent.ACTION_POWER_DISCONNECTED)
+                        }
+                        registerReceiver(chargeReceiver, filter)
+                    }
+
+                    override fun onCancel(arguments: Any?) {
+                        eventSink = null
+                        unregisterReceiver(chargeReceiver)
+                    }
+                }
+            )
+    }
+}

android/app/src/main/res/values/styles.xml

@@ -1,18 +1,20 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <!-- 应用主主题（浅色） -->
-    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
-        <!-- Show a splash screen on the activity. Automatically removed when
+        <item name="android:statusBarColor">@android:color/white</item>
-             the Flutter engine draws its first frame -->
+        <item name="android:windowLightStatusBar">true</item>
-        <item name="android:windowBackground">@drawable/launch_background</item>
+        <item name="android:windowTranslucentStatus">false</item>
+        <item name="android:windowTranslucentNavigation">false</item>
+        <item name="android:navigationBarColor">@android:color/white</item>
+        <item name="android:windowLightNavigationBar">true</item>
     </style>
-    <!-- Theme applied to the Android Window as soon as the process has started.
-         This theme determines the color of the Android Window while your
-         Flutter UI initializes, as well as behind your Flutter UI while its
-         running.
 
-         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <!-- 启动主题（用于闪屏，保持透明/深色以避免白屏闪烁） -->
-    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+    <style name="LaunchTheme" parent="Theme.AppCompat.Light.NoActionBar">
-        <item name="android:windowBackground">?android:colorBackground</item>
+        <!-- 启动时可保持透明 -->
+        <item name="android:windowBackground">@android:color/white</item>
+        <item name="android:statusBarColor">@android:color/white</item>
+        <item name="android:windowLightStatusBar">true</item>
     </style>
 </resources>

android/gradle.properties

@@ -1,3 +1,7 @@
 org.gradle.jvmargs=-Xmx8G -XX:MaxMetaspaceSize=4G -XX:ReservedCodeCacheSize=512m -XX:+HeapDumpOnOutOfMemoryError
 android.useAndroidX=true
 android.enableJetifier=true
+# This builtInKotlin flag was added automatically by Flutter migrator
+android.builtInKotlin=false
+# This newDsl flag was added automatically by Flutter migrator
+android.newDsl=false

lib/logic/capacity_extractor.dart

@@ -0,0 +1,49 @@
+/// 容量提取工具
+/// 支持两种日志格式：
+/// 1. learned_cap（21 系列）：单位 µAh，除以 1000 得到 mAh
+/// 2. remaining_cap（20 系列）：单位 mAh，直接使用（但 21 系列的 remaining_cap 也是 µAh，需判断）
+///
+/// 🟢 1.4.5 优化：仅从 status=Full 的行中提取容量（充满状态下 BMS 最准确）
+class CapacityExtractor {
+  static int? extractCapacity(List<String> lines) {
+    // 🟢 只保留包含 tbat= 且 status=Full 的行
+    final fullLines = lines.where((line) {
+      return line.contains('tbat=') && line.contains('status=Full');
+    }).toList();
+
+    if (fullLines.isEmpty) {
+      // 今天没有充满电的记录，返回 null 表示无有效数据
+      return null;
+    }
+
+    // 模式一：learned_cap（21 系列）
+    final learnedReg = RegExp(r'learned_cap=(\d+)');
+    for (String line in fullLines.reversed) {
+      final match = learnedReg.firstMatch(line);
+      if (match != null) {
+        return int.parse(match.group(1)!) ~/ 1000;
+      }
+    }
+
+    // 模式二：remaining_cap 最大值（20 系列，或 21 系列回退）
+    final remainingReg = RegExp(r'remaining_cap=(\d+)');
+    int? maxRemaining;
+    for (String line in fullLines) {
+      final match = remainingReg.firstMatch(line);
+      if (match != null) {
+        final value = int.parse(match.group(1)!);
+        if (maxRemaining == null || value > maxRemaining) {
+          maxRemaining = value;
+        }
+      }
+    }
+    if (maxRemaining == null) return null;
+
+    // 🟢 判断单位：如果数值大于 100000（约 100 mAh），则认为是 µAh，需除以 1000
+    if (maxRemaining > 100000) {
+      return maxRemaining ~/ 1000;
+    } else {
+      return maxRemaining;
+    }
+  }
+}

lib/logic/charge_parser.dart

@@ -0,0 +1,139 @@
+import 'dart:developer' as dev;
+import '../utils/time_utils.dart';
+
+/// 充电日志解析器
+class ChargeParser {
+  /// 解析充电数据，返回解析结果
+  static ParseResult parse(List<String> lines, DateTime? chargingStartTime) {
+    dev.log('[ChargeParser] 开始解析，共 ${lines.length} 行', name: 'BatteryHealth');
+
+    final validLines = _collectValidLines(lines, chargingStartTime);
+    if (validLines.isEmpty) {
+      dev.log('[ChargeParser] 无有效时间窗口内的数据行', name: 'BatteryHealth');
+      return ParseResult.empty();
+    }
+
+    // 按时间戳从新到旧排序
+    validLines.sort((a, b) => b['timestamp'].compareTo(a['timestamp']));
+    final latest = validLines.first;
+    final latestLine = latest['line'] as String;
+    final latestType = latest['type'] as String;
+
+    dev.log(
+      '[ChargeParser] 最新有效数据: $latestType, 时间: ${latest['timestamp']}',
+      name: 'BatteryHealth',
+    );
+
+    if (latestType == 'wls') {
+      return _parseWireless(latestLine);
+    } else {
+      return _parseWired(latestLine);
+    }
+  }
+
+  static List<Map<String, dynamic>> _collectValidLines(
+    List<String> lines,
+    DateTime? chargingStartTime,
+  ) {
+    final result = <Map<String, dynamic>>[];
+    for (String line in lines) {
+      final timestamp = TimeUtils.parseLogTimestamp(line);
+      if (!TimeUtils.isLogTimestampValid(timestamp, chargingStartTime))
+        continue;
+
+      final isUsb =
+          line.contains('chg_usb') &&
+          (line.contains('ibus=') || line.contains('real_type='));
+      final isWls = line.contains('chg_wls') && line.contains('wls_online=1');
+
+      if (isUsb || isWls) {
+        result.add({
+          'line': line,
+          'timestamp': timestamp,
+          'type': isWls ? 'wls' : 'usb',
+        });
+      }
+    }
+    return result;
+  }
+
+  static ParseResult _parseWireless(String line) {
+    final typeReg = RegExp(r'wls_type=(\w+)');
+    final voltReg = RegExp(r'wls_volt=(\d+)');
+    final currReg = RegExp(r'wls_curr=(\d+)');
+
+    final wlsType = typeReg.firstMatch(line)?.group(1);
+    final volt = int.parse(voltReg.firstMatch(line)?.group(1) ?? '0');
+    final curr = int.parse(currReg.firstMatch(line)?.group(1) ?? '0');
+
+    return ParseResult(
+      isWireless: true,
+      chargeType: wlsType ?? '无线',
+      power: (volt * curr) / 1000000.0,
+      volt: volt / 1000.0,
+      curr: curr / 1000.0,
+      wiredLevel: null,
+    );
+  }
+
+  static ParseResult _parseWired(String line) {
+    final ibusReg = RegExp(r'ibus=(\d+)');
+    final vbusReg = RegExp(r'vbus=(\d+)');
+    final levelReg = RegExp(r'wired_level=(\d+)');
+    final typeReg = RegExp(r'real_type=(\w+)');
+
+    final ibus = int.parse(ibusReg.firstMatch(line)?.group(1) ?? '0');
+    final vbus = int.parse(vbusReg.firstMatch(line)?.group(1) ?? '0');
+    final realType = typeReg.firstMatch(line)?.group(1);
+    final level = int.parse(levelReg.firstMatch(line)?.group(1) ?? '0');
+
+    String chargeType;
+    if (realType == 'PPS') {
+      chargeType = 'PPS';
+    } else if (realType == 'SDP' || realType == 'FLOAT') {
+      chargeType = 'SDP';
+    } else if (level >= 3) {
+      chargeType = 'PPS';
+    } else {
+      chargeType = 'SDP';
+    }
+
+    return ParseResult(
+      isWireless: false,
+      chargeType: chargeType,
+      power: (vbus * ibus) / 1000000000.0,
+      volt: vbus / 1000000.0,
+      curr: ibus / 1000000.0,
+      wiredLevel: chargeType == 'PPS' ? level : null,
+    );
+  }
+}
+
+class ParseResult {
+  final bool isWireless;
+  final String chargeType;
+  final double power;
+  final double volt;
+  final double curr;
+  final int? wiredLevel;
+
+  ParseResult({
+    required this.isWireless,
+    required this.chargeType,
+    required this.power,
+    required this.volt,
+    required this.curr,
+    this.wiredLevel,
+  });
+
+  factory ParseResult.empty() {
+    return ParseResult(
+      isWireless: false,
+      chargeType: '',
+      power: 0.0,
+      volt: 0.0,
+      curr: 0.0,
+      wiredLevel: null,
+    );
+  }
+}

lib/main.dart

@@ -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/services/battery_data_service.dart

@@ -0,0 +1,107 @@
+import 'dart:developer' as dev;
+import '../services/database_service.dart';
+import '../logic/capacity_extractor.dart';
+import '../models/saf_permission_state.dart';
+import '../services/saf_storage_service.dart';
+
+/// 电池数据服务：扫描日志、更新数据库
+class BatteryDataService {
+  final SafStorageService _safService = SafStorageService();
+  final DatabaseService _dbService = DatabaseService();
+
+  /// 扫描所有日志文件并更新数据库
+  Future<void> scanAndUpdateDB() async {
+    dev.log('🔵 scanAndUpdateDB 开始', name: 'BatteryHealth');
+
+    final state = await _safService.getPermissionState();
+    if (state != SafPermissionState.authorized) {
+      dev.log('🔵 scanAndUpdateDB: 未授权', name: 'BatteryHealth');
+      return;
+    }
+
+    try {
+      final files = await _safService.listFiles();
+      final filePattern = RegExp(r'mbattery_charger_log_(\d{4}_\d{2}_\d{2})$');
+
+      for (String fileName in files) {
+        final match = filePattern.firstMatch(fileName);
+        if (match == null) continue;
+
+        final dateStr = match.group(1)!.replaceAll('_', '-');
+        dev.log('🔵 处理文件: $fileName, 日期: $dateStr', name: 'BatteryHealth');
+
+        try {
+          final lines = await _safService.readLogFile(fileName);
+          if (lines.isEmpty) continue;
+
+          // 🟢 1.4.5 改进：使用 CapacityExtractor 提取容量（仅从 Full 状态提取）
+          int? cap = CapacityExtractor.extractCapacity(lines);
+
+          // 🟢 如果今天没有充满电（cap == null），尝试从昨天复制数据
+          if (cap == null) {
+            dev.log('🔵 日期 $dateStr 无充满记录，尝试复制前一天数据', name: 'BatteryHealth');
+
+            // 查询最近一条已有数据
+            final recentData = await _dbService.queryRecentData(1);
+            if (recentData.isNotEmpty) {
+              final yesterdayCap = recentData.first['capacity'] as int;
+              final yesterdayMaxVolt =
+                  recentData.first['volt_max'] as double? ?? 0.0;
+              final yesterdayMinVolt =
+                  recentData.first['volt_min'] as double? ?? 0.0;
+
+              dev.log(
+                '🔵 复制前一天数据: cap=$yesterdayCap, date=$dateStr',
+                name: 'BatteryHealth',
+              );
+
+              // 🟢 复制昨天的容量和电压极值到今天
+              await _dbService.insertOrUpdate(
+                dateStr,
+                yesterdayCap,
+                yesterdayMaxVolt,
+                yesterdayMinVolt,
+              );
+            } else {
+              dev.log('🔵 无历史数据可复制，跳过日期 $dateStr', name: 'BatteryHealth');
+            }
+            continue; // 已处理，跳过后续电压提取逻辑
+          }
+
+          // 提取电压极值（从所有有效行提取，不限于 Full）
+          final voltReg = RegExp(r'vbat=(\d+)');
+          double? maxVolt, minVolt;
+          for (String line in lines) {
+            if (!line.contains('tbat=')) continue;
+            final match = voltReg.firstMatch(line);
+            if (match != null) {
+              final v = int.parse(match.group(1)!) / 1000000;
+              if (maxVolt == null || v > maxVolt) maxVolt = v;
+              if (minVolt == null || v < minVolt) minVolt = v;
+            }
+          }
+          if (maxVolt == null || minVolt == null) continue;
+
+          await _dbService.insertOrUpdate(dateStr, cap, maxVolt, minVolt);
+          dev.log('🔵 插入数据库: $dateStr, cap=$cap', name: 'BatteryHealth');
+        } catch (e) {
+          dev.log('🔵 处理文件 $fileName 异常: $e', name: 'BatteryHealth');
+        }
+      }
+    } catch (e) {
+      dev.log('🔵 scanAndUpdateDB 异常: $e', name: 'BatteryHealth');
+    }
+  }
+
+  /// 获取趋势数据（最近 N 天）
+  Future<List<Map<String, dynamic>>> getTrendData(int days) async {
+    return await _dbService.queryRecentData(days);
+  }
+
+  /// 获取最近一条数据
+  Future<Map<String, dynamic>?> getLatestData() async {
+    final data = await _dbService.queryRecentData(1);
+    if (data.isNotEmpty) return data.first;
+    return null;
+  }
+}

lib/services/database_service.dart

@@ -0,0 +1,130 @@
+import 'dart:developer' as dev;
+import 'package:sqflite/sqflite.dart';
+import 'package:path/path.dart';
+
+/// 数据库服务：管理电池数据持久化
+class DatabaseService {
+  static Database? _database;
+  static const String _tableName = 'battery_data';
+
+  /// 获取数据库实例（单例）
+  Future<Database> get database async {
+    if (_database != null) return _database!;
+    _database = await _initDatabase();
+    return _database!;
+  }
+
+  /// 初始化数据库
+  Future<Database> _initDatabase() async {
+    final dbPath = await getDatabasesPath();
+    final path = join(dbPath, 'battery_health.db');
+
+    return await openDatabase(
+      path,
+      version: 1,
+      onCreate: (db, version) async {
+        await db.execute('''
+          CREATE TABLE $_tableName (
+            date TEXT PRIMARY KEY,
+            capacity INTEGER NOT NULL,
+            volt_max REAL NOT NULL,
+            volt_min REAL NOT NULL,
+            updated_at TEXT NOT NULL
+          )
+        ''');
+        await db.execute('''
+          CREATE INDEX idx_date ON $_tableName (date DESC)
+        ''');
+        dev.log('✅ 数据库表创建成功', name: 'DatabaseService');
+      },
+    );
+  }
+
+  /// 插入或更新数据
+  Future<void> insertOrUpdate(
+    String date,
+    int capacity,
+    double voltMax,
+    double voltMin,
+  ) async {
+    final db = await database;
+    final now = DateTime.now().toIso8601String();
+
+    await db.insert(_tableName, {
+      'date': date,
+      'capacity': capacity,
+      'volt_max': voltMax,
+      'volt_min': voltMin,
+      'updated_at': now,
+    }, conflictAlgorithm: ConflictAlgorithm.replace);
+    dev.log('📝 数据已保存: $date, cap=$capacity', name: 'DatabaseService');
+  }
+
+  /// 查询最近 N 条数据（按日期倒序）
+  Future<List<Map<String, dynamic>>> queryRecentData(int limit) async {
+    final db = await database;
+    try {
+      final result = await db.query(
+        _tableName,
+        orderBy: 'date DESC',
+        limit: limit,
+      );
+      return result;
+    } catch (e) {
+      dev.log('⚠️ 查询数据失败: $e', name: 'DatabaseService');
+      return [];
+    }
+  }
+
+  /// 🟢 1.4.5 新增：查询指定日期数据
+  Future<Map<String, dynamic>?> queryByDate(String date) async {
+    final db = await database;
+    try {
+      final result = await db.query(
+        _tableName,
+        where: 'date = ?',
+        whereArgs: [date],
+      );
+      return result.isNotEmpty ? result.first : null;
+    } catch (e) {
+      dev.log('⚠️ 查询单日数据失败: $e', name: 'DatabaseService');
+      return null;
+    }
+  }
+
+  /// 删除指定日期数据
+  Future<void> deleteByDate(String date) async {
+    final db = await database;
+    await db.delete(_tableName, where: 'date = ?', whereArgs: [date]);
+  }
+
+  /// 获取数据库中所有日期列表
+  Future<List<String>> getAllDates() async {
+    final db = await database;
+    try {
+      final result = await db.query(
+        _tableName,
+        columns: ['date'],
+        orderBy: 'date DESC',
+      );
+      return result.map((row) => row['date'] as String).toList();
+    } catch (e) {
+      return [];
+    }
+  }
+
+  /// 清空所有数据
+  Future<void> clearAll() async {
+    final db = await database;
+    await db.delete(_tableName);
+    dev.log('🗑️ 所有数据已清空', name: 'DatabaseService');
+  }
+
+  /// 关闭数据库
+  Future<void> close() async {
+    if (_database != null) {
+      await _database!.close();
+      _database = null;
+    }
+  }
+}

lib/services/saf_storage_service.dart

@@ -1,65 +1,63 @@
-import 'dart:io';
 import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
 import 'package:shared_preferences/shared_preferences.dart';
-import 'package:file_picker/file_picker.dart';
 import '../models/saf_permission_state.dart';
 
-/// 使用 file_picker 实现文件夹访问
+/// SAF 存储服务
+/// 负责管理通过 SAF 授权的文件夹访问
 class SafStorageService {
   static final SafStorageService _instance = SafStorageService._internal();
   factory SafStorageService() => _instance;
   SafStorageService._internal();
 
-  static const String _prefKeySafPath = 'saf_storage_path';
+  static const MethodChannel _channel = MethodChannel(
-  String? _cachedPath;
+    'com.lxh.battery_health/saf',
+  );
+  static const String _prefKeySafUri = 'saf_storage_uri';
+  String? _cachedUri;
 
+  /// 初始化，从 SharedPreferences 恢复 URI
   Future<void> init() async {
+    try {
       final prefs = await SharedPreferences.getInstance();
-    _cachedPath = prefs.getString(_prefKeySafPath);
+      _cachedUri = prefs.getString(_prefKeySafUri);
       if (kDebugMode) {
-      print('[SAF] 初始化，缓存路径: $_cachedPath');
+        print('[SAF] 初始化，缓存 URI: $_cachedUri');
+      }
+    } catch (e) {
+      if (kDebugMode) {
+        print('[SAF] 初始化失败: $e');
+      }
+      _cachedUri = null;
     }
   }
 
+  /// 获取当前授权状态（简化版，直接根据缓存判断）
   Future<SafPermissionState> getPermissionState() async {
-    if (_cachedPath == null || _cachedPath!.isEmpty) {
+    if (_cachedUri == null || _cachedUri!.isEmpty) {
       return SafPermissionState.unauthorized;
     }
-    try {
+    // 直接返回 authorized，相信缓存
-      final dir = Directory(_cachedPath!);
-      if (!await dir.exists()) {
-        _clearCache();
-        return SafPermissionState.expired;
-      }
     return SafPermissionState.authorized;
-    } catch (e) {
-      _clearCache();
-      return SafPermissionState.expired;
-    }
   }
 
+  /// 请求 SAF 授权（引导用户选择文件夹）
   Future<SafAuthorizationResult> requestPermission() async {
     try {
-      // 使用 file_picker 选择文件夹
+      final String? uriString = await _channel.invokeMethod('selectFolder');
-      String? selectedPath = await FilePicker.platform.getDirectoryPath();
 
-      if (selectedPath == null || selectedPath.isEmpty) {
+      if (uriString == null || uriString.isEmpty) {
         return SafAuthorizationResult.denied();
       }
 
-      // 验证路径是否包含 mbattery_charger（可选，提高容错）
+      _cachedUri = uriString;
-      if (!selectedPath.contains('mbattery_charger')) {
+      await _saveUri(uriString);
-        return SafAuthorizationResult.error('请选择 mbattery_charger 文件夹');
-      }
-
-      _cachedPath = selectedPath;
-      await _savePath(selectedPath);
 
       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');
@@ -68,24 +66,63 @@ class SafStorageService {
     }
   }
 
+  /// 🟢 将 URI 传递给 Kotlin 端（用于恢复 safUri）
+  Future<bool> restoreUri() async {
+    if (_cachedUri == null || _cachedUri!.isEmpty) {
+      if (kDebugMode) {
+        print('[SAF] restoreUri: 缓存 URI 为空');
+      }
+      return false;
+    }
+    try {
+      final bool? result = await _channel.invokeMethod('restoreUri', {
+        'uri': _cachedUri,
+      });
+      if (result == true) {
+        if (kDebugMode) {
+          print('[SAF] restoreUri 成功: $_cachedUri');
+        }
+        return true;
+      } else {
+        if (kDebugMode) {
+          print('[SAF] restoreUri 失败: 返回 false');
+        }
+        return false;
+      }
+    } catch (e) {
+      if (kDebugMode) {
+        print('[SAF] restoreUri 异常: $e');
+      }
+      return false;
+    }
+  }
+
+  /// 检查指定日期的日志文件是否存在
   Future<bool> logFileExists(String fileName) async {
     final state = await getPermissionState();
     if (state != SafPermissionState.authorized) return false;
     try {
-      final file = File('${_cachedPath!}/$fileName');
+      final files = await listFiles();
-      return await file.exists();
+      return files.contains(fileName);
     } catch (e) {
       return false;
     }
   }
 
+  /// 读取日志文件内容（返回行列表）
   Future<List<String>> readLogFile(String fileName) async {
+    // 🟢 先尝试恢复 URI
+    await restoreUri();
+
     final state = await getPermissionState();
     if (state != SafPermissionState.authorized) return [];
+
     try {
-      final file = File('${_cachedPath!}/$fileName');
+      final String? content = await _channel.invokeMethod('readLogFile', {
-      if (!await file.exists()) return [];
+        'fileName': fileName,
-      return await file.readAsLines();
+      });
+      if (content == null || content.isEmpty) return [];
+      return content.split('\n');
     } catch (e) {
       if (kDebugMode) {
         print('[SAF] 读取文件失败: $e');
@@ -94,17 +131,20 @@ class SafStorageService {
     }
   }
 
+  /// 获取文件夹中的文件列表
   Future<List<String>> listFiles() async {
+    // 🟢 先尝试恢复 URI
+    await restoreUri();
+
     final state = await getPermissionState();
     if (state != SafPermissionState.authorized) return [];
+
     try {
-      final dir = Directory(_cachedPath!);
+      final result = await _channel.invokeMethod('listFiles');
-      if (!await dir.exists()) return [];
+      if (result is List) {
-      final entities = await dir.list().toList();
+        return result.cast<String>();
-      return entities
+      }
-          .whereType<File>()
+      return [];
-          .map((e) => e.path.split(Platform.pathSeparator).last)
-          .toList();
     } catch (e) {
       if (kDebugMode) {
         print('[SAF] 列出文件失败: $e');
@@ -113,24 +153,40 @@ class SafStorageService {
     }
   }
 
+  /// 验证授权是否有效（简化版）
   Future<bool> validatePermission() async {
     final state = await getPermissionState();
     return state == SafPermissionState.authorized;
   }
 
+  /// 清除缓存
   void _clearCache() {
-    _cachedPath = null;
+    _cachedUri = null;
-    _savePath(null);
+    _saveUri(null);
   }
 
-  Future<void> _savePath(String? path) async {
+  /// 保存 URI 到 SharedPreferences
+  Future<void> _saveUri(String? uri) async {
+    try {
       final prefs = await SharedPreferences.getInstance();
-    if (path != null && path.isNotEmpty) {
+      if (uri != null && uri.isNotEmpty) {
-      await prefs.setString(_prefKeySafPath, path);
+        await prefs.setString(_prefKeySafUri, uri);
+        if (kDebugMode) {
+          print('[SAF] 保存 URI 成功: $uri');
+        }
       } else {
-      await prefs.remove(_prefKeySafPath);
+        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;
+  /// 获取缓存的 URI（用于调试）
+  String? get cachedUri => _cachedUri;
 }

lib/utils/time_utils.dart

@@ -0,0 +1,48 @@
+import 'dart:developer' as dev;
+
+class TimeUtils {
+  /// 解析日志行中的时间戳，强制解析为 UTC
+  static DateTime? parseLogTimestamp(String line) {
+    final reg = RegExp(r'\[(\d{4}-\d{2}-\d{2}) (\d{2}:\d{2}:\d{2})\]');
+    final match = reg.firstMatch(line);
+    if (match == null) return null;
+    try {
+      final dateParts = match.group(1)!.split('-');
+      final timeParts = match.group(2)!.split(':');
+      return DateTime.utc(
+        int.parse(dateParts[0]),
+        int.parse(dateParts[1]),
+        int.parse(dateParts[2]),
+        int.parse(timeParts[0]),
+        int.parse(timeParts[1]),
+        int.parse(timeParts[2]),
+      );
+    } catch (_) {
+      return null;
+    }
+  }
+
+  /// 判断日志时间戳是否在有效窗口内
+  static bool isLogTimestampValid(
+    DateTime? logTime,
+    DateTime? chargingStartTime,
+  ) {
+    if (logTime == null) return false;
+    if (chargingStartTime == null) {
+      final nowUtc = DateTime.now().toUtc();
+      final diff = nowUtc.difference(logTime);
+      return diff.abs().inMinutes <= 3;
+    }
+    final endTime = chargingStartTime.add(const Duration(minutes: 3));
+    return logTime.isAfter(chargingStartTime) && logTime.isBefore(endTime);
+  }
+
+  /// 生成今日日志文件名（UTC）
+  static String getTodayFileName() {
+    final nowUtc = DateTime.now().toUtc();
+    final year = nowUtc.year.toString();
+    final month = nowUtc.month.toString().padLeft(2, '0');
+    final day = nowUtc.day.toString().padLeft(2, '0');
+    return 'mbattery_charger_log_${year}_${month}_$day';
+  }
+}

lib/widgets/battery_info_panel.dart

@@ -0,0 +1,135 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_svg/flutter_svg.dart';
+
+/// 电池信息面板（电压 + 温度 + 极值）
+class BatteryInfoPanel extends StatelessWidget {
+  final double batteryVolt;
+  final double batteryTemp;
+  final double maxVolt;
+  final double minVolt;
+  final double maxTemp;
+  final double minTemp;
+
+  const BatteryInfoPanel({
+    super.key,
+    required this.batteryVolt,
+    required this.batteryTemp,
+    required this.maxVolt,
+    required this.minVolt,
+    required this.maxTemp,
+    required this.minTemp,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Row(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Expanded(
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              _buildInfoItem(
+                _buildIcon('voltage'),
+                '电压',
+                '${batteryVolt.toStringAsFixed(3)}V',
+              ),
+              const SizedBox(height: 8),
+              Row(
+                children: [
+                  Text(
+                    '↑ ${maxVolt.toStringAsFixed(3)}V',
+                    style: const TextStyle(
+                      color: Colors.red,
+                      fontSize: 14,
+                      fontWeight: FontWeight.w500,
+                    ),
+                  ),
+                  const SizedBox(width: 12),
+                  Text(
+                    '↓ ${minVolt.toStringAsFixed(3)}V',
+                    style: const TextStyle(
+                      color: Colors.blue,
+                      fontSize: 14,
+                      fontWeight: FontWeight.w500,
+                    ),
+                  ),
+                ],
+              ),
+            ],
+          ),
+        ),
+        Expanded(
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              _buildInfoItem(
+                _buildIcon('temperature'),
+                '温度',
+                '${batteryTemp.toStringAsFixed(0)}°C',
+              ),
+              const SizedBox(height: 8),
+              Row(
+                children: [
+                  Text(
+                    '↑ ${maxTemp.toStringAsFixed(0)}°C',
+                    style: const TextStyle(
+                      color: Colors.red,
+                      fontSize: 14,
+                      fontWeight: FontWeight.w500,
+                    ),
+                  ),
+                  const SizedBox(width: 12),
+                  Text(
+                    '↓ ${minTemp.toStringAsFixed(0)}°C',
+                    style: const TextStyle(
+                      color: Colors.blue,
+                      fontSize: 14,
+                      fontWeight: FontWeight.w500,
+                    ),
+                  ),
+                ],
+              ),
+            ],
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildIcon(String type) {
+    switch (type) {
+      case 'voltage':
+        return SvgPicture.asset(
+          'assets/icons/si--lightning-fill.svg',
+          width: 18,
+          height: 18,
+          colorFilter: const ColorFilter.mode(Colors.grey, BlendMode.srcIn),
+        );
+      case 'temperature':
+        return SvgPicture.asset(
+          'assets/icons/mdi--temperature.svg',
+          width: 18,
+          height: 18,
+          colorFilter: const ColorFilter.mode(Colors.grey, BlendMode.srcIn),
+        );
+      default:
+        return const Icon(Icons.help_outline, size: 18, color: Colors.grey);
+    }
+  }
+
+  Widget _buildInfoItem(Widget icon, String label, String value) {
+    return Row(
+      children: [
+        icon,
+        const SizedBox(width: 6),
+        Text(label, style: const TextStyle(fontSize: 14, color: Colors.grey)),
+        const SizedBox(width: 6),
+        Text(
+          value,
+          style: const TextStyle(fontSize: 16, fontWeight: FontWeight.w500),
+        ),
+      ],
+    );
+  }
+}

lib/widgets/battery_summary.dart

@@ -0,0 +1,101 @@
+import 'package:flutter/material.dart';
+
+/// 电池健康度摘要组件（健康度 + cycles + mAh）
+class BatterySummary extends StatelessWidget {
+  final double healthPercent;
+  final int cycleCount;
+  final double currentCap;
+  final int designCap;
+
+  const BatterySummary({
+    super.key,
+    required this.healthPercent,
+    required this.cycleCount,
+    required this.currentCap,
+    required this.designCap,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Row(
+      crossAxisAlignment: CrossAxisAlignment.end,
+      children: [
+        // 健康度大数字
+        Row(
+          crossAxisAlignment: CrossAxisAlignment.baseline,
+          textBaseline: TextBaseline.alphabetic,
+          children: [
+            Text(
+              healthPercent.toStringAsFixed(1),
+              style: TextStyle(
+                fontSize: 40,
+                fontWeight: FontWeight.w500,
+                height: 1.0,
+                color: healthPercent < 70 ? Colors.red : Colors.black,
+              ),
+            ),
+            const SizedBox(width: 2),
+            Text(
+              '%',
+              style: TextStyle(
+                fontSize: 20,
+                fontWeight: FontWeight.w300,
+                height: 1.0,
+                color: healthPercent < 70 ? Colors.red : Colors.grey.shade600,
+              ),
+            ),
+          ],
+        ),
+        const Spacer(),
+        // cycles + mAh
+        Column(
+          crossAxisAlignment: CrossAxisAlignment.end,
+          children: [
+            Text(
+              '$cycleCount cycles', // ✅ 修正：去掉下划线，使用 cycleCount
+              style: const TextStyle(
+                fontSize: 16,
+                fontWeight: FontWeight.w500,
+                height: 1.2,
+              ),
+            ),
+            const SizedBox(height: 4),
+            Text.rich(
+              TextSpan(
+                children: [
+                  TextSpan(
+                    text: currentCap.toStringAsFixed(0),
+                    style: const TextStyle(
+                      fontSize: 20,
+                      fontWeight: FontWeight.w300,
+                    ),
+                  ),
+                  TextSpan(
+                    text: ' / ',
+                    style: TextStyle(
+                      fontSize: 20,
+                      fontWeight: FontWeight.w300,
+                      color: Colors.grey.shade500,
+                    ),
+                  ),
+                  TextSpan(
+                    text: '${designCap}mAh',
+                    style: const TextStyle(
+                      fontSize: 20,
+                      fontWeight: FontWeight.w300,
+                    ),
+                  ),
+                ],
+              ),
+              style: const TextStyle(
+                fontSize: 20,
+                fontWeight: FontWeight.w300,
+                height: 1.0,
+              ),
+            ),
+          ],
+        ),
+      ],
+    );
+  }
+}

lib/widgets/charge_detail_page.dart

@@ -11,14 +11,14 @@ class ChargeDetailPage extends StatelessWidget {
   final int? wiredLevel;
 
   const ChargeDetailPage({
-    super.key,
+    Key? key,
     required this.chargeType,
     required this.isWireless,
     required this.power,
     required this.volt,
     required this.curr,
     this.wiredLevel,
-  });
+  }) : super(key: key);
 
   String _getDisplayPower() {
     if (isWireless) {
@@ -31,7 +31,7 @@ class ChargeDetailPage extends StatelessWidget {
   String _getProtocolDisplay() {
     if (isWireless) return '无线充电（$chargeType）';
     if (chargeType == 'PPS') return 'PPS 快充';
-    if (chargeType == 'SDP') return 'USB 充电'; // 🟢 改成和主页面一致
+    if (chargeType == 'SDP') return 'USB 充电';
     return chargeType;
   }
 

lib/widgets/charge_entry.dart

@@ -0,0 +1,56 @@
+import 'package:flutter/material.dart';
+
+/// 充电入口行（显示充电状态 + 点击进入详情）
+class ChargeEntry extends StatelessWidget {
+  final String summary;
+  final bool isCharging;
+  final VoidCallback onTap;
+
+  const ChargeEntry({
+    super.key,
+    required this.summary,
+    required this.isCharging,
+    required this.onTap,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+      onTap: isCharging ? onTap : null,
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceBetween,
+        children: [
+          Text(
+            summary,
+            style: const TextStyle(
+              fontSize: 16,
+              fontWeight: FontWeight.w500,
+              color: Colors.black87,
+            ),
+          ),
+          Row(
+            children: [
+              Text(
+                '充电信息',
+                style: TextStyle(
+                  fontSize: 16,
+                  fontWeight: FontWeight.w500,
+                  color: Colors.grey.shade700,
+                ),
+              ),
+              const SizedBox(width: 4),
+              Text(
+                '>',
+                style: TextStyle(
+                  fontSize: 16,
+                  fontWeight: FontWeight.w500,
+                  color: Colors.grey.shade700,
+                ),
+              ),
+            ],
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/widgets/trend_chart.dart

@@ -0,0 +1,222 @@
+import 'package:flutter/material.dart';
+
+// --- 潘通色定义 ---
+const Color kHealthGreen = Color(0xFF00B140);
+const Color kHealthYellow = Color(0xFFEFDF00);
+const Color kHealthOrange = Color(0xFFD75A16);
+
+/// 趋势图柱状图组件
+class TrendChart extends StatelessWidget {
+  final List<Map<String, dynamic>> data;
+  final int designCap;
+
+  const TrendChart({super.key, required this.data, required this.designCap});
+
+  @override
+  Widget build(BuildContext context) {
+    List<Map<String, dynamic>> displayData = data.isNotEmpty
+        ? data
+        : _getMockData();
+
+    List<String> dates = displayData.map((e) {
+      String date = e['date'] as String;
+      var parts = date.split('-');
+      return '${parts[1]}/${parts[2]}';
+    }).toList();
+
+    List<double> percents = displayData.map((e) {
+      int cap = e['capacity'] as int;
+      return (cap / designCap) * 100;
+    }).toList();
+
+    while (percents.length < 15) {
+      percents.insert(0, 0);
+      dates.insert(0, '');
+    }
+    if (percents.length > 15) {
+      percents = percents.sublist(percents.length - 15);
+      dates = dates.sublist(dates.length - 15);
+    }
+
+    int todayIndex = percents.length - 1;
+    int sevenDaysAgoIndex = todayIndex - 7;
+    bool showSevenDaysAgo = sevenDaysAgoIndex >= 0;
+
+    String sevenDaysAgoDate = showSevenDaysAgo ? dates[sevenDaysAgoIndex] : '';
+    String todayDate = dates[todayIndex];
+
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        const Text(
+          '容量百分比变动趋势（近15天）',
+          style: TextStyle(fontSize: 16, fontWeight: FontWeight.w500),
+        ),
+        const SizedBox(height: 8),
+        Row(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            SizedBox(
+              height: 180,
+              child: Column(
+                mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                children: const [
+                  Text(
+                    '100',
+                    style: TextStyle(
+                      fontSize: 10,
+                      color: Colors.grey,
+                      height: 1.0,
+                    ),
+                  ),
+                  Text(
+                    '70',
+                    style: TextStyle(
+                      fontSize: 10,
+                      color: Colors.grey,
+                      height: 1.0,
+                    ),
+                  ),
+                ],
+              ),
+            ),
+            const SizedBox(width: 4),
+            Expanded(
+              child: LayoutBuilder(
+                builder: (context, constraints) {
+                  double totalWidth = constraints.maxWidth;
+                  double step = totalWidth / 15;
+
+                  return SizedBox(
+                    height: 180,
+                    child: Stack(
+                      children: [
+                        Padding(
+                          padding: const EdgeInsets.only(bottom: 20),
+                          child: Row(
+                            crossAxisAlignment: CrossAxisAlignment.end,
+                            children: List.generate(percents.length, (index) {
+                              double value = percents[index];
+                              Color barColor;
+                              if (value > 0) {
+                                if (value >= 80) {
+                                  barColor = kHealthGreen;
+                                } else if (value >= 70) {
+                                  barColor = kHealthYellow;
+                                } else {
+                                  barColor = Colors.red;
+                                }
+                              } else {
+                                barColor = Colors.grey.shade300;
+                              }
+                              double clampedValue = value.clamp(70.0, 100.0);
+                              double heightFactor =
+                                  (clampedValue - 70.0) / 30.0;
+
+                              return Expanded(
+                                child: Align(
+                                  alignment: Alignment.bottomCenter,
+                                  child: Container(
+                                    margin: const EdgeInsets.symmetric(
+                                      horizontal: 2,
+                                    ),
+                                    height: 20 + (100 * heightFactor),
+                                    width: 18,
+                                    decoration: BoxDecoration(
+                                      color: barColor,
+                                      borderRadius: BorderRadius.circular(4),
+                                    ),
+                                  ),
+                                ),
+                              );
+                            }),
+                          ),
+                        ),
+                        if (showSevenDaysAgo && sevenDaysAgoDate.isNotEmpty)
+                          Positioned(
+                            left: sevenDaysAgoIndex * step + (step / 2) - 14,
+                            bottom: 2,
+                            child: Text(
+                              sevenDaysAgoDate,
+                              style: const TextStyle(
+                                fontSize: 9,
+                                color: Colors.grey,
+                                height: 1.0,
+                              ),
+                            ),
+                          ),
+                        if (todayDate.isNotEmpty)
+                          Positioned(
+                            left: todayIndex * step + (step / 2) - 14,
+                            bottom: 2,
+                            child: Text(
+                              todayDate,
+                              style: const TextStyle(
+                                fontSize: 9,
+                                color: Colors.black,
+                                height: 1.0,
+                                fontWeight: FontWeight.w600,
+                              ),
+                            ),
+                          ),
+                      ],
+                    ),
+                  );
+                },
+              ),
+            ),
+          ],
+        ),
+        if (percents.every((v) => v == 0))
+          const Padding(
+            padding: EdgeInsets.only(top: 8.0),
+            child: Text(
+              '暂无历史数据，请点击刷新按钮更新',
+              style: TextStyle(fontSize: 12, color: Colors.grey),
+            ),
+          ),
+      ],
+    );
+  }
+
+  List<Map<String, dynamic>> _getMockData() {
+    List<String> mockDates = [
+      '2026-06-14',
+      '2026-06-15',
+      '2026-06-16',
+      '2026-06-17',
+      '2026-06-18',
+      '2026-06-19',
+      '2026-06-20',
+      '2026-06-21',
+      '2026-06-22',
+      '2026-06-23',
+      '2026-06-24',
+      '2026-06-25',
+      '2026-06-26',
+      '2026-06-27',
+      '2026-06-28',
+    ];
+    List<int> mockCap = [
+      4635,
+      4632,
+      4628,
+      4625,
+      4620,
+      4618,
+      4615,
+      4610,
+      4608,
+      4605,
+      4600,
+      4598,
+      4595,
+      4590,
+      4585,
+    ];
+    return List.generate(
+      15,
+      (i) => {'date': mockDates[i], 'capacity': mockCap[i]},
+    );
+  }
+}

pubspec.lock

@@ -113,14 +113,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "7.0.1"
-  file_picker:
-    dependency: "direct main"
-    description:
-      name: file_picker
-      sha256: "1bbf65dd997458a08b531042ec3794112a6c39c07c37ff22113d2e7e4f81d4e4"
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "6.2.1"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -134,14 +126,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "5.0.0"
-  flutter_plugin_android_lifecycle:
-    dependency: transitive
-    description:
-      name: flutter_plugin_android_lifecycle
-      sha256: "3854fe5e3bff0b113c658f260b90c95dea17c92db0f2addeac2e343dd9969785"
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "2.0.35"
   flutter_svg:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -16,7 +16,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 1.3.0-dev.2
+version: 1.4.0
 
 environment:
   sdk: ^3.9.2
@@ -38,7 +38,7 @@ dependencies:
   path: ^1.9.0
   flutter_svg: ^2.0.10+1
   shared_preferences: ^2.2.0
-  file_picker: ^6.0.0
+
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.