Xamarin Android: Select RecycleView row

问题

I want to select highlighting with a color a RecycleView row. I tried most of the online example for Xamarin Android but without success.

How can I do it?

回答1:

I want to select high light with a color a RecycleView row.

RecyclerView does not handle item selection so you need do it yourself, add the following code in your RecyclerView.Adapter :

int selectedPosition = -1;
public override void OnBindViewHolder(RecyclerView.ViewHolder viewHolder, int position)
{
    (viewHolder as ViewHolder).TextView.SetText(dataSet [position],TextView.BufferType.Normal);

    if (selectedPosition == position)
        viewHolder.ItemView.SetBackgroundColor(Color.Pink);
    else
        viewHolder.ItemView.SetBackgroundColor(Color.Transparent);

    viewHolder.ItemView.Click += (sender, e) =>
    {
        selectedPosition = position;
        NotifyDataSetChanged();
    };
}

Effect.

来源：https://stackoverflow.com/questions/47607726/xamarin-android-select-recycleview-row