Heterogeneous comment for convertView in getView documentation

package android.widget;

import android.database.DataSetObserver;

import android.view.KeyEvent;

import android.view.View;

import android.view.ViewGroup;

     * @param convertView The old view to reuse, if possible. Note: You should check that this view

     *        is non-null and of an appropriate type before using. If it is not possible to convert

     *        this view to display the correct data, this method can create a new view.

     *        Heterogeneous lists can specify their number of view types, so that this View is

     *        always of the right type (see {@link #getViewTypeCount()} and

     *        {@link #getItemViewType(int)}).

     * @param parent The parent that this view will eventually be attached to

     * @return A View corresponding to the data at the specified position.

     */