removeOnCardAbsentCallback method

void removeOnCardAbsentCallback(
  1. void callback()
)
inherited

Removes a previously registered callback for when an RFID card is no longer present.

Use this method to clean up callbacks that should no longer be invoked when a card is removed from the reader's field.

Example:

reader.removeOnCardAbsentCallback(myCallbackFunction);

Implementation

void removeOnCardAbsentCallback(void Function() callback) {
  _onCardAbsentCallbacks.remove(callback);
}