Bold ClickableSpan on touch

I have a TextView in which every word is a ClickableSpan (actually a custom subclass of ClickableSpan). When a word is touched, it should be shown in bold font style. If I set textIsSelectable(false) on the TextView, it works just fine. The word is immediately bolded. But if text is selectable, then it does not work. BUT - if I touch a word and then turn the screen off and back on, when the screen display comes back on the word is bolded. I have tried everything I can think of to force a redraw (invalidate the TextView, force call Activity's onRestart(), refreshDrawableState() on the TextView, etc). What am I missing?

Here is my subclass of ClickableSpan:

public class WordSpan extends ClickableSpan
{
    int id;
    private boolean marking = false;
    TextPaint tp;
    Typeface font;
    int color = Color.BLACK;

    public WordSpan(int id, Typeface font, boolean marked) {
        this.id = id;
        marking = marked;
        this.font = font;
    }

    @Override
    public void updateDrawState(TextPaint ds) {
        ds.setColor(color);
        ds.setUnderlineText(false);

        if (marking)
            ds.setTypeface(Typeface.create(font,Typeface.BOLD));

        tp = ds;
    }

    @Override
    public void onClick(View v) {
        // Empty here -- overriden in activity
    }

    public void setMarking(boolean m) {
        marking = m;
        updateDrawState(tp);
    }

    public void setColor(int col) {
        color = col;
    }
}

Here is the WordSpan instantiation code in my Activity:

... looping through words

curSpan = new WordSpan(index,myFont,index==selectedWordId) {
    @Override
    public void onClick(View view) {
        handleWordClick(index,this);
        setMarking(true);
        tvText.invalidate();
    }
};

... continue loop code

And here is my custom MovementMethod:

public static MovementMethod createMovementMethod ( Context context ) {
    final GestureDetector detector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
        @Override
        public boolean onSingleTapUp ( MotionEvent e ) {
            return true;
        }

        @Override
        public boolean onSingleTapConfirmed ( MotionEvent e ) {
            return false;
        }

        @Override
        public boolean onDown ( MotionEvent e ) {
            return false;
        }

        @Override
        public boolean onDoubleTap ( MotionEvent e ) {
            return false;
        }

        @Override
        public void onShowPress ( MotionEvent e ) {
            return;
        }
    });

    return new ScrollingMovementMethod() {

        @Override
        public boolean canSelectArbitrarily () {
            return true;
        }

        @Override
        public void initialize(TextView widget, Spannable text) {
            Selection.setSelection(text, text.length());
        }

        @Override
        public void onTakeFocus(TextView view, Spannable text, int dir) {

            if ((dir & (View.FOCUS_FORWARD | View.FOCUS_DOWN)) != 0) {
                if (view.getLayout() == null) {
                    // This shouldn't be null, but do something sensible if it is.
                    Selection.setSelection(text, text.length());
                }
            } else {
                Selection.setSelection(text, text.length());
            }
        }

        @Override
        public boolean onTouchEvent ( TextView widget, Spannable buffer, MotionEvent event ) {
            // check if event is a single tab
            boolean isClickEvent = detector.onTouchEvent(event);

            // detect span that was clicked
            if (isClickEvent) {
                int x = (int) event.getX();
                int y = (int) event.getY();

                x -= widget.getTotalPaddingLeft();
                y -= widget.getTotalPaddingTop();

                x += widget.getScrollX();
                y += widget.getScrollY();

                Layout layout = widget.getLayout();
                int line = layout.getLineForVertical(y);
                int off = layout.getOffsetForHorizontal(line, x);

                WordSpan[] link = buffer.getSpans(off, off, WordSpan.class);

                if (link.length != 0) {
                    // execute click only for first clickable span
                    // can be a for each loop to execute every one

                    if (event.getAction() == MotionEvent.ACTION_UP) {
                        link[0].onClick(widget);
                        return true;
                    }
                    else if (event.getAction() == MotionEvent.ACTION_DOWN) {
                        Selection.setSelection(buffer,
                                               buffer.getSpanStart(link[0]),
                                               buffer.getSpanEnd(link[0]));

                        return false;
                    }
                }
                else {

                }
            }

            // let scroll movement handle the touch
            return super.onTouchEvent(widget, buffer, event);
        }
    };
}

from Bold ClickableSpan on touch