createStateSelectListener function
create the listener for provider.select filter (StateProvider)
Implementation
void createStateSelectListener(Target target) {
dynamic prevValue = target.callback(target.notifier.state);
target.selectValue = prevValue;
// ignore: prefer_function_declarations_over_variables
final listener = (newState) {
final value = target.callback(target.notifier.state);
target.selectValue = value;
// check if the value has changed
if (prevValue != value || (value is bool && value)) {
if (target.rebuild != null) {
target.rebuild!();
}
}
prevValue = value;
};
target.listener = listener;
}