EntitySaveCallback typedef

EntitySaveCallback = FutureOr Function({BuildContext context, File file, CameraPickerViewType viewType})

The callback type define for saving entity in the viewer. 在查看器中保存图片时的回调

Notice about the implementation

• After the callback is implemented, the default saving method won't called anymore.
• Don't call Navigator.of(context).pop/maybePop without popping null or AssetEntity, otherwise there will be a type cast error occurred.

在实现时需要注意

• 实现该方法后，原本的保存方法不会再被调用；
• 不要使用 Navigator.of(context).pop/maybePop 返回 null 或 AssetEntity 以外类型的内容，否则会抛出类型转换异常。

Implementation

typedef EntitySaveCallback = FutureOr<dynamic> Function({
  BuildContext context,
  CameraPickerViewType viewType,
  File file,
});