fast_image_resizer

This package uses native implementations to resize an image. It should be
fast compared to the image package.
It only supports PNG as output at the moment.

This package has zero dependencies.

Features

Supported inputs: JPEG, PNG, GIF, Animated GIF, WebP, Animated WebP, BMP, and WBMP
Supported outputs: PNG

Getting started

Add fast_image_resizer to your pubspec.yaml

Usage

import 'package:fast_image_resizer/fast_image_resizer.dart';
import 'dart:typed_data';

final rawImage = await rootBundle.load('assets/someImage.png');
final bytes = await resizeImage(Uint8List.view(rawImage.buffer), width: 150);
if (bytes != null) {
    final imageWidget = Image.memory(Uint8List.view(bytes.buffer));
    showDialog(
        context: context,
        builder: (BuildContext context) {
            return AlertDialog(
            title: const Text("Image"),
            content: imageWidget,
            );
        }
    );
}

final ImagePicker _picker = ImagePicker();
final XFile? image =
    await _picker.pickImage(source: ImageSource.gallery);
if (image != null) {
    final rawImage = await image.readAsBytes();
    final bytes = await resizeImage(Uint8List.view(rawImage.buffer), height: 250);
    if (bytes != null) {
        final testing = Image.memory(Uint8List.view(bytes.buffer));
        showDialog(
            context: context,
            builder: (BuildContext context) {
                return AlertDialog(
                    title: Text("Image"),
                    content: testing,
                );
            }
        );
    }
}

GitHub

View Github