Preference.OnPreferenceChangeListener

public static interface Preference.OnPreferenceChangeListener

androidx.preference.Preference.OnPreferenceChangeListener


Interface definition for a callback to be invoked when the value of this Preference has been changed by the user and is about to be set and/or persisted. This gives the client a chance to prevent setting and/or persisting the value.

Summary

Public methods

abstract boolean onPreferenceChange(Preference preference, Object newValue)

Called when a preference has been changed by the user.

Public methods

onPreferenceChange

public abstract boolean onPreferenceChange (Preference preference, 
                Object newValue)

Called when a preference has been changed by the user. This is called before the state of the preference is about to be updated and before the state is persisted.

Parameters
preference Preference: The changed preference

newValue Object: The new value of the preference

Returns
boolean true to update the state of the preference with the new value