1.开始录制、结束录制增加

2. 增加电量检测、内存检查，是否低于 10%

lib/core/platform/app_platform_info.dart

@@ -1,6 +1,7 @@
 import 'dart:io';
 
 import 'package:flutter/services.dart';
+import 'package:recording_tool/core/platform/device_health_snapshot.dart';
 
 class AppPackageInfo {
   const AppPackageInfo({
@@ -75,4 +76,11 @@ class AppPlatformInfo {
     );
     return AppDeviceInfo.fromMap(result ?? const <Object?, Object?>{});
   }
+
+  static Future<DeviceHealthSnapshot> deviceHealth() async {
+    final result = await _channel.invokeMapMethod<Object?, Object?>(
+      'deviceHealth',
+    );
+    return DeviceHealthSnapshot.fromMap(result ?? const <Object?, Object?>{});
+  }
 }

lib/core/platform/device_health_checker.dart

@@ -0,0 +1,25 @@
+import 'package:recording_tool/core/platform/device_health_snapshot.dart';
+
+class DeviceHealthChecker {
+  DeviceHealthChecker._();
+
+  static const int thresholdPercent = 10;
+
+  static const String lowBatteryMessage = '电量低于10%，请充电';
+  static const String lowStorageMessage = '内存低于10%，请清理内存';
+
+  static List<String> warningLines(DeviceHealthSnapshot snapshot) {
+    final lines = <String>[];
+
+    final battery = snapshot.batteryLevelPercent;
+    if (battery != null && battery < thresholdPercent) {
+      lines.add(lowBatteryMessage);
+    }
+
+    if (snapshot.storageAvailablePercent < thresholdPercent) {
+      lines.add(lowStorageMessage);
+    }
+
+    return lines;
+  }
+}

lib/core/platform/device_health_snapshot.dart

@@ -0,0 +1,30 @@
+class DeviceHealthSnapshot {
+  const DeviceHealthSnapshot({
+    this.batteryLevelPercent,
+    required this.storageAvailablePercent,
+  });
+
+  factory DeviceHealthSnapshot.fromMap(Map<Object?, Object?> map) {
+    final batteryRaw = map['batteryLevelPercent'];
+    int? batteryLevelPercent;
+    if (batteryRaw is int) {
+      batteryLevelPercent = batteryRaw;
+    } else if (batteryRaw is num) {
+      batteryLevelPercent = batteryRaw.round();
+    }
+
+    final storageRaw = map['storageAvailablePercent'];
+    final storageAvailablePercent = switch (storageRaw) {
+      final num value => value.toDouble(),
+      _ => 100.0,
+    };
+
+    return DeviceHealthSnapshot(
+      batteryLevelPercent: batteryLevelPercent,
+      storageAvailablePercent: storageAvailablePercent,
+    );
+  }
+
+  final int? batteryLevelPercent;
+  final double storageAvailablePercent;
+}