Package org.eclipse.handly.ui.preference

# Interface IPreferenceListener

public interface IPreferenceListener
A listener that is notified when the value of a preference changes.

This interface may be implemented by clients.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `preferenceChanged(PreferenceChangeEvent event)`
  Notifies this listener that the value of a preference has changed.

- ## Method Details

  - ### preferenceChanged

    void preferenceChanged(PreferenceChangeEvent event)
    Notifies this listener that the value of a preference has changed.

    Note: This method may be called in any thread. If a listener updates an SWT widget, it will need to use Display#syncExec(Runnable) or Display#asyncExec(Runnable).

    Parameters:
      `event` - describes which preference changed and how (never `null`)