Model> typedef Null safety
- Model viewModel
A function that will be run on State change, after the build method.
This function is passed the
Model, and if
it will only be called if the
This can be useful for running certain animations after the build is complete.
Note: Using a BuildContext inside this callback can cause problems if
the callback performs navigation. For navigation purposes, please use
typedef OnDidChangeCallback<Model> = void Function(Model viewModel);