Flutter Sticker Maker #

A cross-platform Flutter plugin to create stickers by removing backgrounds from images using iOS Vision/CoreImage and Android MLKit.

Features #

• iOS: Uses Vision and CoreImage for background removal.
• Android: Uses Google ML Kit Selfie Segmentation.
• Handles storage, gallery, and camera permissions automatically.
• Configurable border support with customizable color and width.
• Simple Dart API.

Usage #

import 'package:flutter_sticker_maker/flutter_sticker_maker.dart';

// Basic usage
final sticker = await FlutterStickerMaker.makeSticker(imageBytes);

// With border customization
final stickerWithBorder = await FlutterStickerMaker.makeSticker(
  imageBytes,
  addBorder: true,
  borderColor: '#FF0000', // Red border
  borderWidth: 15.0,      // 15 pixel border width
);

Parameters #

• imageBytes: The input image as Uint8List (PNG/JPEG)
• addBorder: Whether to add a border around the sticker (default: true)
• borderColor: Hex color string for the border (default: '#FFFFFF')
• borderWidth: Width of the border in pixels (default: 12.0)

See example/ for a full demo app.

Setup #

• iOS: Minimum iOS 17.0
• Android: Minimum SDK 21

Permissions #

Add to AndroidManifest.xml:

<uses-permission android:name="android.permission.READ_MEDIA_IMAGES" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" android:maxSdkVersion="32"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="28"/>
<uses-permission android:name="android.permission.CAMERA" />

Add to ios/Runner/Info.plist:

<key>NSPhotoLibraryUsageDescription</key>
<string>This app needs access to your photo library to pick images and save stickers.</string>
<key>NSCameraUsageDescription</key>
<string>This app needs camera access to take pictures for sticker creation.</string>
<key>NSPhotoLibraryAddUsageDescription</key>
<string>This app saves stickers to your photo library.</string>