Flutter __link__ Download File From Url With Progress May 2026

To find the correct local storage paths on both Android and iOS.

The Dio().download() method is designed specifically for this use case. It takes the source , the local save path , and a callback function to track progress. Core Download Function flutter download file from url with progress

import 'dart:io'; import 'package:dio/dio.dart'; import 'package:path_provider/path_provider.dart'; Future downloadFile(String url, String fileName) async Dio dio = Dio(); try // 1. Get the directory to save the file Directory dir = await getApplicationDocumentsDirectory(); String savePath = "$dir.path/$fileName"; // 2. Start the download await dio.download( url, savePath, onReceiveProgress: (received, total) if (total != -1) // Calculate percentage double progress = received / total; print("Progress: $(progress * 100).toStringAsFixed(0)%"); // Update your UI state here (e.g., using a ValueNotifier or setState) , ); print("File saved to: $savePath"); catch (e) print("Download failed: $e"); Use code with caution. To find the correct local storage paths on

Add the internet and storage permissions to your AndroidManifest.xml . Add the internet and storage permissions to your

To build a robust downloader, you'll need three core packages:

Flutter: Download File from URL with Progress Downloading files is a staple feature for many mobile applications, whether you're fetching a PDF, an image, or a large video asset. Providing a visual is essential for a good user experience, as it reassures users that the app is actively working.