onKeyChanged method

void onKeyChanged({
  1. required String key,
  2. required String? value,
})

This gets called whenever data corresponding to a key is changed

This also gets called when key is set for the first time or set to null

  • Parameters:
    • key: the key whose metadata is changed
    • value: new value of the corresponding key

Implementation

void onKeyChanged({required String key, required String? value}) {}