registerCallback method

void registerCallback({
  1. required String key,
  2. required void callback({
    1. Map<String, dynamic>? data,
    }),
})

Registers a callback function with the given key.

Implementation

void registerCallback({
  required String key,
  required void Function({Map<String, dynamic>? data}) callback,
}) {
  _cleanupCallbacks();
  _subTagCallbacks[key] = WeakReference(callback);
}