code: public T input(final BooleanRunnable runnable) {
          if (view != null && view instanceof EditText) {
              EditText editText = (EditText) view;
              if ((editText.getInputType() & TYPE_TEXT_FLAG_MULTI_LINE) == 0)
                  editText.setOnKeyListener(new View.OnKeyListener() {
  
                      public boolean onKey(View v, int keyCode, KeyEvent event) {
                          if (keyCode != KEYCODE_ENTER)
                              return false;
                          if (event == null)
                              return false;
                          if (event.getAction() != ACTION_DOWN)
                              return false;
  
                          return runnable.run();
                      }
                  });
  
              editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
  
                  public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
                      if (actionId == IME_ACTION_DONE)
                          return runnable.run();
                      else
                          return false;
                  }
              });
          }
          return self();
      }
docs: input event for editText
  
  @param runnable
  @return