smart_download_manager_plus 1.0.0

A Flutter package to download files to Android Downloads folder with notifications.

Flutter Download Manager

A powerful, resumable, and queue-based download manager for Flutter — built for production apps.

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Highlights

• Parallel downloads with queue system
• Resume & pause downloads
• Smart retry mechanism
• Real-time progress & speed tracking
• Save directly to Downloads (Android MediaStore)
• iOS support (Documents directory)
• Built-in notifications
• Batch downloads
• Persistent tasks (auto restore)
• Open file automatically after download

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Preview

[Screenshot_1] [Screenshot_2] [Screenshot_3] [Screenshot_4]

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Installation

dependencies:
  flutter_download_manager: latest

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Quick Start

Initialize

await
DownloadNotificationService.init
();await
DownloadNotificationService.requestPermission
();

---

Create Controller

final controller = DownloadController(
  maxConcurrent: 2,
);

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Download a File

final task = controller.addTask(
  'https://example.com/file.pdf',
  subFolder: 'MyApp',
  openAfterDownload: true,
);

await
controller.startTask
(
task
);

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Usage Examples

Download PDF

controller.addTask
('https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf
'
,openAfterDownload:
true
,
);

---

Download Image

controller.addTask
('https://www.w3.org/Icons/w3c_home.png
'
,
);

---

Batch Download

controller.addBatch
([
'https://example.com/file1.pdf',
'https://example.com/file2.png',
]);

---

Pause / Resume

controller.pauseTask
(
task
);
controller
.
resumeTask
(
task
);

---

Cancel

await
controller.cancelTask
(
task
);

---

Open File After Download

Automatically open files when completed:

controller.addTask
(
url
,
openAfterDownload
:
true
,
);

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File Storage

Android

• Uses MediaStore API
• Saves to Downloads/
• No storage permission required

iOS

• Saves to Application Documents Directory

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Listen to Progress

controller.onTaskUpdated.listen
(
(task) {
print(task.progress);
});

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Configuration

Option	Description
maxConcurrent	Number of parallel downloads
priority	Download priority
headers	Custom request headers
retryDelay	Delay between retries
maxRetries	Retry attempts
subFolder	Save inside subfolder
openAfterDownload	Auto open file

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How It Works

• Uses Dio for downloading
• Supports HTTP Range requests (resume)
• Stores tasks using SharedPreferences
• Uses MethodChannel for Android file saving

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⚠️ Notes

• Resume requires server support for Range headers
• Some file types require external apps to open
• Android 13+ requires notification permission

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