ListView: how to access Item's elements programmatically from outside?

Question

I have the following situation.

I have a ListView, each item of the ListView is comprised of different widgets (TextViews, ImageViews, etc...) inflated form a Layout in

Answer 1

What I normally do is this:

public static class EventDetailsRenderer {

    private TextView title;

    private TextView description;

    private Event item;

    public EventDetailsRenderer(View view) {
        extractFromView(view);
    }

    private final void extractFromView(View view) {
        title = (TextView) view.findViewById(R.id.EventTitle);
        description = (TextView) view.findViewById(R.id.Description);
    }

    public final void render() {
            render(item);
    }

    public final void render(Event item) {
        this.item= item;
        title.setText(item.getTitle());
        description.setText(item.getDescription());
    }
}

private class EventsAdapter
        extends ArrayAdapter {

    public EventsAdapter(Context context) {
        super(context, R.layout.list_node__event_details, 0);
    }

    public void addAllItems(Event... services) {
        for (int i = 0; i < services.length; i++) {
            add(services[i]);
        }
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        Event event = getItem(position);
        EventDetailsRenderer eventRenderer;

        if (convertView != null && convertView.getTag() != null) {
            eventRenderer = (EventDetailsRenderer) convertView.getTag();
        } else {
            convertView = getActivity().getLayoutInflater().inflate(R.layout.list_node__event_details, null);
            eventRenderer = new EventDetailsRenderer(convertView);
            convertView.setTag(eventRenderer);
        }

        eventRenderer.render(event);
        return convertView;
    }
}

NOTE: that this example might not compile I pasted it from some code I have and deleted some lines to show an example but the logic it the same.

And then when you want to render it, just get the children from the list, iterate over them, check if the renderer contains the card you want to flip and call its render method... then you render a specific item in the list without effecting the rest of the items.

Let me know if this works...

Adam.