# Interface PreferenceListener

public interface PreferenceListener
Respond to changes to the Preferences

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `preferenceChanged(String pref, java.lang.Object priorValue, java.lang.Object revisedValue)`
  Respond to a change in the Preference.

- ## Method Details

  - ### preferenceChanged

    void preferenceChanged(String pref, java.lang.Object priorValue, java.lang.Object revisedValue)

    Respond to a change in the Preference. This method is only called if the value has changed.

    ###### Parameters

    - `pref`: The preference key

    - `priorValue`: The value prior to the change

    - `revisedValue`: The new value, which is guaranteed to be different from priorValue