Expand CardView inside RecyclerView as New Activity like Inbox by Google Android

Question

I'm Using Recycler View as my listview and CardView as list item. I want to expand the Cardview when I click on any item of the list like it expands in inbox app by Google/Gmail. Please guide!

Answer 1

Trick: You can change one of your item's height (inside your CardView) in your adapter. For example i have TextView in my CardView, when CardView item is clicked, i change height of TextView to 300:

public class courseListAdapter extends ListAdapter<courseListAdapter.ViewHolder> {
....
public class ViewHolder extends RecyclerView.ViewHolder implements
                View.OnClickListener,View.OnLongClickListener{
    TextView courseCRN;      
    ....
    public ViewHolder(View itemView, ClickListener listener)  {
        super(itemView);
        courseCRN = (TextView) itemView.findViewById(R.id.course_crn);

    }
    @Override
    public void onClick(View v) {   

                    LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT, 300, 1f);
                    courseCRN.setLayoutParams(lp);


     }
}

Initial:

Later: