Results 2 issues of imruxin

```bash Launching lib/main.dart on iPhone 11 in debug mode... Compiler message: /usr/local/flutter/.pub-cache/hosted/pub.dartlang.org/cached_network_image-1.1.3/lib/src /cached_network_image_provider.dart:42:24: Error: The method 'CachedNetworkImageProvider.load' has fewer positional arguments than those of overridden method 'ImageProvider.load'. ImageStreamCompleter load(CachedNetworkImageProvider key)...

看样子楼主好像没借助什么其他的库来实现了这些功能,确实厉害~ 同类型的经典的库,比如阿里的 G6,D3.js 等~ 希望作者可以把预览和编辑模式做个区分,然后预览模式下可以自由放大缩小和拖动,这样就比较完美了。 加油,期待更新~ 哈哈哈~