flutter pub add transparent_image基于插件公开信息、社区数据与项目使用情况整理的选型参考。
一个轻量级的 Dart 包，提供透明图像作为 Uint8List，适用于 UI 开发中的占位符图像。它能够在多个平台上一致地渲染不可见或透明的图像，而无需外部资源。非常适合测试、布局原型设计，或在不需要视觉内容的情况下需要图像占位符的场景。该包与平台无关，可无缝集成到 Flutter 应用中。
以下为关联源码仓库的 README 原文快照，最新内容请访问源码仓库。
A simple transparent image. Represented as a Uint8List, which was originally extracted from the Flutter codebase (was private in the test package).
It's a silly, simple library, but I found I needed transparent images in a few projects and found this is the simplest way to represent it :)
This package exports one constant: kTransparentImage.
Displays the transparent image.
Image.memory(kTransparentImage);
MemoryImage(kTransparentImage);
A more useful example, and the reason I originally extracted this from the Flutter codebase!
A complete example can be seen on the Flutter website.
FadeInImage.memoryNetwork(
placeholder: kTransparentImage,
image: 'https://picsum.photos/250?image=9',
),
);