Is there a way to get the adapter position from within a Renderer

[fbis251]

Hi,

I'd like to be able to get the adapter position of a View from within a Renderer. Is this possible?

One use case is passing the position to between Activities to keep the user's selection synchronized when they click a View

Thanks

[pedrovgs]

Hi @fbis251 you can configure the position of the view for every renderer creating your own RvRendererAdapter and overriding the method named updateRendererExtraValues.

You can create your own PositionableRenderer adding the position attribute and a PositionableRVRendererAdapter configuring this value. Based on this change all your renderers will keep a reference to the position :) This is the method you have to override:

  /**
   * Empty implementation created to allow the client code to extend this class without override
   * getView method.
   *
   * This method is called before render the Renderer and can be used in RendererAdapter extension
   * to add extra info to the renderer created like the position in the ListView/RecyclerView.
   *
   * @param content to be rendered.
   * @param renderer to be used to paint the content.
   * @param position of the content.
   */
  protected void updateRendererExtraValues(T content, Renderer<T> renderer, int position) {

If you think could be valuable for any library user it could be great if you send a PR adding this attribute to the current Renderer implementation.

Is this the answer to your question?

[fbis251]

Thank you for the help @pedrovgs I overrode the method you suggested and my click listener now knows which position the user clicked!