Merge pull request #183 from dzan/fix_swipe_select

import android.text.style.StyleSpan;

import android.util.Log;

import android.util.TypedValue;

import android.view.GestureDetector;

import android.view.KeyEvent;

import android.view.LayoutInflater;

import android.view.MotionEvent;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.ViewGroup;

import com.fsck.k9.Preferences;

import com.fsck.k9.R;

import com.fsck.k9.SearchSpecification;

import com.fsck.k9.activity.misc.SwipeGestureDetector;

import com.fsck.k9.activity.misc.SwipeGestureDetector.OnSwipeGestureListener;

import com.fsck.k9.activity.setup.AccountSettings;

import com.fsck.k9.activity.setup.FolderSettings;

import com.fsck.k9.activity.setup.Prefs;

 * shows a list of messages.

 * From this Activity the user can perform all standard message operations.

 */

public class MessageList extends K9ListActivity implements OnItemClickListener {

public class MessageList extends K9ListActivity implements OnItemClickListener,

        OnSwipeGestureListener {

    /**

     * Reverses the result of a {@link Comparator}.

        initializeMessageList(getIntent(), true);

        mListView.setVerticalFadingEdgeEnabled(false);

        // Enable gesture detection for MessageLists

        mGestureDetector = new GestureDetector(new SwipeGestureDetector(this, this));

        // Enable context action bar behaviour

        mListView.setOnItemLongClickListener(new OnItemLongClickListener() {

            @Override

        return true;

    }

    @Override

    public void onSwipeRightToLeft(final MotionEvent e1, final MotionEvent e2) {

        // Handle right-to-left as an un-select

        handleSwipe(e1, false);

    }

    @Override

    public void onSwipeLeftToRight(final MotionEvent e1, final MotionEvent e2) {

        // Handle left-to-right as a select.

        handleSwipe(e1, true);

    }

    /**

     * Handle a select or unselect swipe event

     * @param downMotion Event that started the swipe

     * @param selected true if this was an attempt to select (i.e. left to right).

     */

    private void handleSwipe(final MotionEvent downMotion, final boolean selected) {

        int[] listPosition = new int[2];

        mListView.getLocationOnScreen(listPosition);

        int position = mListView.pointToPosition((int) downMotion.getRawX() - listPosition[0], (int) downMotion.getRawY() - listPosition[1]);

        if (position != AdapterView.INVALID_POSITION) {

            final MessageInfoHolder message = (MessageInfoHolder) mListView.getItemAtPosition(position);

            toggleMessageSelect(message);

        }

    }

    class MessageListAdapter extends BaseAdapter {

        private final List<MessageInfoHolder> mMessages =

                Collections.synchronizedList(new ArrayList<MessageInfoHolder>());