addKeyListener method
Add a ChangeNotifier to this key
Implementation
void addKeyListener(String key, VoidCallback f) {
if (_keyListeners[key] == null) {
_keyListeners[key] = <VoidCallback>{};
}
_keyListeners[key]!.add(f);
}
Add a ChangeNotifier to this key
void addKeyListener(String key, VoidCallback f) {
if (_keyListeners[key] == null) {
_keyListeners[key] = <VoidCallback>{};
}
_keyListeners[key]!.add(f);
}