• https://pub.dev/packages/image_cropper
• https://github.com/hnvn/flutter_image_cropper

图片裁剪库，封装了uCrop、TOCropViewController和croppie

图片也是一种二进制文件，图片的原始数据中每个像素在内存中一般占用2-4个字节

• https://pub.dev/packages/extended_image
• https://github.com/fluttercandies/extended_image/blob/master/README-ZH.md
• Android中图片占用内存计算方法

• https://pub.dev/packages/flutter_image_compress
• https://github.com/fluttercandies/flutter_image_compress

图片压缩工具

Flutter的刷新组件以前比较流行的是pull_to_refresh，现在已经不再维护了，新的刷新组件是easy_refresh，支持Flutter SDK 3.x。它的特点：