hyzp_ybqx-Commit129：使用android_power_manager_0.1.6添加请求忽略电池优化功能，解决一些明显问题，基本可用

lib/file_manager/file_manager_init.dart

@@ -1,10 +1,12 @@
 import 'dart:async';
 import 'dart:io';
 
+import 'package:android_power_manager/android_power_manager.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:fluttertoast/fluttertoast.dart';
 import 'package:intl/date_symbol_data_local.dart';
+
 //import 'file_manager.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:permission_handler/permission_handler.dart';
@@ -42,10 +44,35 @@ checkPermission() {
   });
 }
 
+requestIgnoreBatteryOptimizations() async {
+  bool success = await AndroidPowerManager.requestIgnoreBatteryOptimizations();
+  if (success) {
+    String isIgnoringBatteryOptimizations = await _checkBatteryOptimizations();
+    // setState(() {
+    //   _isIgnoringBatteryOptimizations = isIgnoringBatteryOptimizations;
+    // });
+    print("isIgnoringBatteryOptimizations = $isIgnoringBatteryOptimizations");
+  }
+}
+
+Future<String> _checkBatteryOptimizations() async {
+  String isIgnoringBatteryOptimizations;
+  // Platform messages may fail, so we use a try/catch PlatformException.
+  try {
+    isIgnoringBatteryOptimizations =
+    '${await AndroidPowerManager.isIgnoringBatteryOptimizations}';
+  } on PlatformException {
+    isIgnoringBatteryOptimizations = 'Failed to get platform version.';
+  }
+  return isIgnoringBatteryOptimizations;
+}
+
 //整个Flutter App的入口03
 // Permission check，适用于 permission_handler: ^5.x.x
 Future<bool> getPermission() async {
   if (Platform.isAndroid) {
+    await requestIgnoreBatteryOptimizations(); // 请求忽略电池优化
+
     // You can request multiple permissions at once.
     Map<Permission, PermissionStatus> permissionStatuses = await [
       Permission.storage,