Backwards compatible Contextual Action Mode

CamCompatListView

import android.content.Context;
import android.support.v7.view.ActionMode;
import android.util.AttributeSet;
import android.view.View;
import android.widget.AbsListView;
import android.widget.ListView;

public class CamCompatListView extends ListView
{
    public CamCompatListView(Context context)
    {
        super(context);
    }

    public CamCompatListView(Context context, AttributeSet attrs)
    {
        super(context, attrs);
    }

    public CamCompatListView(Context context, AttributeSet attrs, int defStyle)
    {
        super(context, attrs, defStyle);
    }

    private ActionMode actionMode;

    public void setActionMode(ActionMode mode)
    {
        actionMode = mode;
    }

    @Override
    public boolean performItemClick(View view, int position, long id)
    {
        if (actionMode == null)
        {
            setChoiceMode(AbsListView.CHOICE_MODE_NONE);
        }

        boolean returnValue = super.performItemClick(view, position, id);

        if (actionMode != null)
        {
            actionMode.invalidate();
        }

        return returnValue;
    }
}

MyActivity

import android.annotation.SuppressLint;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.view.ActionMode;
import android.util.SparseBooleanArray;
import android.view.HapticFeedbackConstants;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.ListView;

public class MyActivity extends ActionBarActivity
    implements ActionMode.Callback, AdapterView.OnItemLongClickListener,
            AdapterView.OnItemClickListener
{
    ActionMode actionMode = null;

    CamCompatListView listView;

    @SuppressLint("NewApi")
    public void initialize(CamCompatListView listView)
    {
        listView.setChoiceMode(AbsListView.CHOICE_MODE_NONE);
        listView.setOnItemLongClickListener(this);
        listView.setOnItemClickListener(this);
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id)
    {
        if (actionMode == null)
        {
            // Code you want on a normal click of an item
        }
    }

    @Override
    public boolean onActionItemClicked(ActionMode mode, MenuItem item)
    {
        int itemId = item.getItemId();

        if (itemId == R.id.myAction)
        {
            SparseBooleanArray checked = listView.getCheckedItemPositions();

            if (checked != null)
            {
                for (int i = 0 ; i < checked.size(); i++)
                {
                    if(checked.valueAt(i))
                    {
                        // Perform action on the item
                    }
                }
            }

            mode.finish();

            return true;
        }

        return false;
    }

    @SuppressLint("NewApi")
    @Override
    public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id)
    {
        if (actionMode == null)
        {
            // This needs to be done early, because it will clear selections on the list
            startSupportActionMode(this);
        }

        listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
        listView.setItemChecked(position, !listView.isItemChecked(position));
        listView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);

        actionMode.invalidate();

        return true;
    }

    @Override
    public boolean onCreateActionMode(ActionMode mode, Menu menu)
    {
        mode.getMenuInflater().inflate(R.menu.my_context_menu, menu);

        actionMode = mode;
        listView.setActionMode(mode);

        return true;
    }

    @SuppressLint("NewApi")
    @Override
    public void onDestroyActionMode(ActionMode mode)
    {
        SparseBooleanArray checked = listView.getCheckedItemPositions();

        if (checked != null)
        {
            for(int i = checked.indexOfValue(true); i >= 0; i = checked.indexOfValue(true))
            {
                listView.setItemChecked(checked.keyAt(i), false);
            }
        }

        listView.setActionMode(null);
        actionMode = null;
    }

    @Override
    public boolean onPrepareActionMode(ActionMode mode, Menu menu)
    {
        SparseBooleanArray checked = listView.getCheckedItemPositions();

        int numberChecked = 0;

        if (checked != null)
        {
            for (int i = 0 ; i < checked.size(); i++)
            {
                if(checked.valueAt(i))
                {
                    numberChecked++;
                }
            }
        }

        if (numberChecked > 0)
        {            
            mode.setTitle(getResources().getQuantityString(R.plurals.itemsSelected, numberChecked, numberChecked));
        }
        else
        {
            mode.finish();
        }

        return true;
    }
}

ActionBarCompat allows us to use action bars in older versions of Android, however due to differences in ListView Contextual Action Mode does not work out of the box. Here is some code I used to get the correct behavior.

Excelent, I just implemented and Its working great in gingerbread. Thank you so much.