pulse_storage_android 是一个 Flutter 插件，用于在 Android 设备上管理存储空间。它提供了一些功能，如获取存储信息、清理缓存、删除文件等。以下是如何使用 pulse_storage_android 插件的基本步骤：

1. 添加依赖

首先，在 pubspec.yaml 文件中添加 pulse_storage_android 插件的依赖：

dependencies:
  flutter:
    sdk: flutter
  pulse_storage_android: ^latest_version

然后运行 flutter pub get 来获取依赖。

2. 初始化插件

在你的 Dart 文件中导入插件并初始化它：

import 'package:pulse_storage_android/pulse_storage_android.dart';

void main() {
  runApp(MyApp());
}

3. 获取存储信息

你可以使用 PulseStorageAndroid 类来获取设备的存储信息：

void getStorageInfo() async {
  StorageInfo storageInfo = await PulseStorageAndroid.getStorageInfo();
  print('Total space: ${storageInfo.totalSpace}');
  print('Free space: ${storageInfo.freeSpace}');
  print('Used space: ${storageInfo.usedSpace}');
}

4. 清理缓存

你可以使用 clearCache 方法来清理应用的缓存：

void clearCache() async {
  bool result = await PulseStorageAndroid.clearCache();
  if (result) {
    print('Cache cleared successfully');
  } else {
    print('Failed to clear cache');
  }
}

5. 删除文件

你可以使用 deleteFile 方法来删除指定的文件：

void deleteFile(String filePath) async {
  bool result = await PulseStorageAndroid.deleteFile(filePath);
  if (result) {
    print('File deleted successfully');
  } else {
    print('Failed to delete file');
  }
}

6. 获取缓存大小

你可以使用 getCacheSize 方法来获取应用的缓存大小：

void getCacheSize() async {
  int cacheSize = await PulseStorageAndroid.getCacheSize();
  print('Cache size: $cacheSize bytes');
}

7. 获取外部存储路径

你可以使用 getExternalStorageDirectory 方法来获取外部存储的路径：

void getExternalStoragePath() async {
  String? path = await PulseStorageAndroid.getExternalStorageDirectory();
  if (path != null) {
    print('External storage path: $path');
  } else {
    print('Failed to get external storage path');
  }
}

8. 获取内部存储路径

你可以使用 getInternalStorageDirectory 方法来获取内部存储的路径：

void getInternalStoragePath() async {
  String? path = await PulseStorageAndroid.getInternalStorageDirectory();
  if (path != null) {
    print('Internal storage path: $path');
  } else {
    print('Failed to get internal storage path');
  }
}

9. 检查存储权限

在使用某些功能之前，你可能需要检查并请求存储权限。你可以使用 permission_handler 插件来处理权限请求：

import 'package:permission_handler/permission_handler.dart';

void checkStoragePermission() async {
  var status = await Permission.storage.status;
  if (!status.isGranted) {
    await Permission.storage.request();
  }
}

10. 示例代码

以下是一个完整的示例代码，展示了如何使用 pulse_storage_android 插件：

import 'package:flutter/material.dart';
import 'package:pulse_storage_android/pulse_storage_android.dart';
import 'package:permission_handler/permission_handler.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: StorageManagementScreen(),
    );
  }
}

class StorageManagementScreen extends StatefulWidget {
  [@override](/user/override)
  _StorageManagementScreenState createState() => _StorageManagementScreenState();
}

class _StorageManagementScreenState extends State<StorageManagementScreen> {
  [@override](/user/override)
  void initState() {
    super.initState();
    checkStoragePermission();
  }

  void checkStoragePermission() async {
    var status = await Permission.storage.status;
    if (!status.isGranted) {
      await Permission.storage.request();
    }
  }

  void getStorageInfo() async {
    StorageInfo storageInfo = await PulseStorageAndroid.getStorageInfo();
    print('Total space: ${storageInfo.totalSpace}');
    print('Free space: ${storageInfo.freeSpace}');
    print('Used space: ${storageInfo.usedSpace}');
  }

  void clearCache() async {
    bool result = await PulseStorageAndroid.clearCache();
    if (result) {
      print('Cache cleared successfully');
    } else {
      print('Failed to clear cache');
    }
  }

  void getCacheSize() async {
    int cacheSize = await PulseStorageAndroid.getCacheSize();
    print('Cache size: $cacheSize bytes');
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Storage Management'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            ElevatedButton(
              onPressed: getStorageInfo,
              child: Text('Get Storage Info'),
            ),
            ElevatedButton(
              onPressed: clearCache,
              child: Text('Clear Cache'),
            ),
            ElevatedButton(
              onPressed: getCacheSize,
              child: Text('Get Cache Size'),
            ),
          ],
        ),
      ),
    );
  }
}