connectionClosed method

@override void connectionClosed()

Platform notified framework of closed connection.

TextInputClient should cleanup its connection and finalize editing.

Implementation

@override
void connectionClosed() {
  if (!hasConnection) {
    return;
  }
  _textInputConnection!.connectionClosedReceived();
  _textInputConnection = null;
  _lastKnownRemoteTextEditingValue = null;
}