kirz_photo_manager_toolkit

A Flutter plugin for retrieving file sizes of photos from the iOS Photos library with support for batch processing and concurrency control.

Features

• Get file size for a single photo asset by ID
• Batch processing of multiple photo assets with configurable concurrency
• iOS Photos framework integration
• Efficient concurrent processing using GCD

Usage

Import the plugin

import 'package:kirz_photo_manager_toolkit/kirz_photo_manager_toolkit.dart';

Create an instance

final photoManager = PhotoManagerToolkit();

Get file size for a single asset

String assetId = "your_asset_local_identifier";
int? fileSize = await photoManager.getAssetFileSize(assetId);

if (fileSize != null) {
  print("File size: $fileSize bytes");
} else {
  print("Asset not found or unable to retrieve file size");
}

Get file sizes for multiple assets with concurrency control

List<String> assetIds = ["asset1", "asset2", "asset3"];
Map<String, int?> fileSizes = await photoManager.getAssetsFileSize(
  assetIds,
  concurrency: 3, // Optional: control concurrency (default: 5)
);

fileSizes.forEach((id, size) {
  if (size != null) {
    print("Asset $id: $size bytes");
  } else {
    print("Asset $id: size unavailable");
  }
});

Platform Support

• iOS: Full support using Photos framework
• Android: Not implemented (platform interface available for future implementation)

Permissions

This plugin requires the following permissions to be added to your iOS app:

<key>NSPhotoLibraryUsageDescription</key>
<string>This app needs access to your photo library to retrieve file sizes</string>

Getting Started

For help getting started with Flutter development, view the online documentation, which offers tutorials, samples, guidance on mobile development, and a full API reference.