@Retention(value=CLASS) @Target(value=METHOD) public @interface PreferenceChange
This annotation is intended to be used on methods to receive events defined
by
OnPreferenceChangeListener#onPreferenceChange when the value of a
Preference has been changed by the user
and is about to be set and/or persisted.
The annotation value should be one or several R.string.* fields that refers
to Preference or subclasses of
Preference. If not set, the method name
will be used as the R.string.* field name.
The method MAY have multiple parameter:
Preference parameter to know
which preference was targeted by this eventObject, String, Set of strings
and also a Boolean, Float, Integer, Long or
their corresponding primitive types to obtain the new value of the
Preference. Please note with number
types, we assume that the newValue parameter coming from the
Preference is a String, so we
parse it to a number object (Android Preference classes use Strings instead of number objects).
Example :
@PreferenceChange(R.string.myPref)
void checkedChangedOnMyButton(boolean newValue, Preference preference) {
// Something Here
}
@PreferenceChange
void myPrefPreferenceChanged(Preference preference) {
// Something Here
}
@PreferenceChange({R.string.myPref1, R.string.myPref2})
void preferenceChangeOnMultiplePrefs(Preference preference, String newValue) {
// Something Here
}
@PreferenceChange(R.string.myPref)
void preferenceChangeOnMyPref() {
// Something Here
}
PreferenceClickpublic abstract String[] resName
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