TextWatcherAdapter.java

public class TextWatcherAdapter
    implements TextWatcher {
  private final EditText            view;
  private final TextWatcherListener listener;

  public TextWatcherAdapter(EditText editText, TextWatcherListener listener) {
    this.view = editText;
    this.listener = listener;
  }

  @Override
  public void onTextChanged(CharSequence s, int start, int before, int count) {
    listener.onTextChanged(view, s.toString());
  }

  @Override
  public void beforeTextChanged(CharSequence s, int start, int count, int after) {
    // pass
  }

  @Override
  public void afterTextChanged(Editable s) {
    // pass
  }

  public interface TextWatcherListener {
    void onTextChanged(EditText view, String text);
  }

}