FLUTTER ECOSYSTEM

ductranit/flutter_universal_image

一個 Flutter 統一圖像套件,可在所有平台(行動裝置、桌面與 Web)顯示所有影像類型

flutter_universal_image 專案封面
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2026年4月20日
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此儲存庫發佈的套件

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原始 README

以下為英文專案原文快照,最新內容請造訪 GitHub。

展開 / 收合專案 README

universal_image

pub package

A comprehensive image package that provides a unified solution for displaying all major image formats across mobile, desktop, and web platforms in Flutter applications.
Skip the hassle of Image.network(), Image.asset(), or Image.memory() - simply pass your image source and let UniversalImage handle the rest

Key Features

  • Supports a wide range of image formats, including JPEG, PNG, GIF, Animated GIF, WebP, Animated WebP, BMP, and WBMP from the built-in Image widget.
  • Seamless integration with flutter_svg for rendering SVG images.
  • Powerful caching capabilities with extended_image for optimal performance.
  • Streamlined usage with imageUri, eliminating the need to specify network, asset, or file paths separately.
  • Ability to work with Icons font and memory-based images.

Example usage:

  • Assets provider
    var image = UniversalImage(
      'assets/image.png', // path must start with 'assets'
      color: Colors.black,
      matchTextDirection: false,
      scale: 1.0,
      width: 100,
      height: 100,
      frameBuilder: null,
      errorBuilder: null,
      semanticLabel: null,
      excludeFromSemantics: false,
      colorBlendMode: BlendMode.clear,
      fit: BoxFit.cover,
      alignment: Alignment.center,
      repeat: ImageRepeat.noRepeat,
      centerSlice: Rect.fromLTWH(0, 0, 100, 100),
      gaplessPlayback: false,
      isAntiAlias: false,
      filterQuality: FilterQuality.low,
      cacheWidth: 100,
      cacheHeight: 100,
      allowDrawingOutsideViewBox: false,
      placeholder: Container(),
      svgSkiaMode: true, // using flutter_svg on web, make sure building with FLUTTER_WEB_USE_SKIA=true
    );
  • File provider:
var image = UniversalImage(
      '/com.package.app/files/image.png', // image storage file path
      color: Colors.black,
      matchTextDirection: false,
      scale: 1.0,
      width: 100,
      height: 100,
      frameBuilder: null,
      errorBuilder: null,
      semanticLabel: null,
      excludeFromSemantics: false,
      colorBlendMode: BlendMode.clear,
      fit: BoxFit.cover,
      alignment: Alignment.center,
      repeat: ImageRepeat.noRepeat,
      centerSlice: Rect.fromLTWH(0, 0, 100, 100),
      gaplessPlayback: false,
      isAntiAlias: false,
      filterQuality: FilterQuality.low,
      cacheWidth: 100,
      cacheHeight: 100,
      allowDrawingOutsideViewBox: false,
      svgSkiaMode: false,
      placeholder: Container(),
    );
  • Network provider:
var image = UniversalImage(
      'https://flutter.github.io/assets-for-api-docs/assets/widgets/owl.jpg',
      color: Colors.black,
      matchTextDirection: false,
      scale: 1.0,
      width: 100,
      height: 100,
      frameBuilder: null,
      errorBuilder: null,
      semanticLabel: null,
      excludeFromSemantics: false,
      colorBlendMode: BlendMode.clear,
      fit: BoxFit.cover,
      alignment: Alignment.center,
      repeat: ImageRepeat.noRepeat,
      centerSlice: Rect.fromLTWH(0, 0, 100, 100),
      gaplessPlayback: false,
      isAntiAlias: false,
      filterQuality: FilterQuality.low,
      cacheWidth: 100,
      cacheHeight: 100,
      allowDrawingOutsideViewBox: false,
      svgSkiaMode: false,
      placeholder: Container(),
    );
  • Icon provider:
var image = UniversalImage(
      Icons.add,
      color: Colors.black,
      size: 30,
      textDirection: TextDirection.ltr
    );
  • Base64 provider:
Uint8List data = await loadImage();
var base64String = data.base64Image; // or replace any base64 image string 
var image = UniversalImage(
      base64String,
      color: Colors.black,
      matchTextDirection: false,
      scale: 1.0,
      width: 100,
      height: 100,
      frameBuilder: null,
      errorBuilder: null,
      semanticLabel: null,
      excludeFromSemantics: false,
      colorBlendMode: BlendMode.clear,
      fit: BoxFit.cover,
      alignment: Alignment.center,
      repeat: ImageRepeat.noRepeat,
      centerSlice: Rect.fromLTWH(0, 0, 100, 100),
      gaplessPlayback: false,
      isAntiAlias: false,
      filterQuality: FilterQuality.low,
      cacheWidth: 100,
      cacheHeight: 100,
      allowDrawingOutsideViewBox: false,
    );
  • Bytes memory provider:
Uint8List data = await loadImage();
var image = UniversalImage(
      data,
      color: Colors.black,
      matchTextDirection: false,
      scale: 1.0,
      width: 100,
      height: 100,
      frameBuilder: null,
      errorBuilder: null,
      semanticLabel: null,
      excludeFromSemantics: false,
      colorBlendMode: BlendMode.clear,
      fit: BoxFit.cover,
      alignment: Alignment.center,
      repeat: ImageRepeat.noRepeat,
      centerSlice: Rect.fromLTWH(0, 0, 100, 100),
      gaplessPlayback: false,
      isAntiAlias: false,
      filterQuality: FilterQuality.low,
      cacheWidth: 100,
      cacheHeight: 100,
      allowDrawingOutsideViewBox: false,
    );

License

License

Copyright (C) 2020 ductranit

Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.