Apps Copy content from row in listview

[walterBshp]

Howdy,

I'm trying to copy the content of a certain row in a listview, so I can change it and later reload that row content.

I've tried defining a new LinearLayout and then getChildAt(), but it's working. Any solution? Is there some sort of clone or copy that I'm missing?

Thanks,
wBishop

 

[alostpacket]

This is sort of how ListViews work behind the scenes....

You should look for a tutorial on using a BaseAdapter with a listview. getChildAt() can be unreliable....


BaseAdapter has a method you override called getView()

// in this method, you inflate a new view if convertView == null
// if convertView  is not null, that means Android has 'recycled'
// a view that has gone off screen and is giving it to you to re-use
// this saves CPU and memory since creating/inflating views is an 
// 'expensive' operation
// NOTE: myAppContext is a class variable passed to my Adapter earlier 

@Override
public View getView ( int position, View convertView, ViewGroup parent )
{
    if ( convertView == null  )
    {
         LayoutInflater inflater = (LayoutInflater) myAppContext
         .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
         convertView = inflater.inflate(R.layout.my_row_layout, null);
     }


    // here you can do things like reset the text, etc

    TextView textView = (TextView) convertView.findViewById(R.id.text_in_row);

    textView.setText( String.valueOf (position) ); 

    return convertView;
}