Custom spannable for collapsible sub-titles with different typeface\size\color

CustomTypefaceSpan

package com.filipeuva.spannables;

import android.graphics.Paint;
import android.graphics.Typeface;
import android.text.TextPaint;
import android.text.style.MetricAffectingSpan;

/**
 * Created by Filipe Uva on 4/5/2015.
 */
public class CustomTypefaceSpan extends MetricAffectingSpan {
    private final Typeface newType;
    private final float textSize;
    private final int textColor;

    public CustomTypefaceSpan(Typeface type, float textSize, int colorResId) {
        newType = type;
        this.textSize = textSize;
        this.textColor = colorResId;
    }

    @Override
    public void updateDrawState(final TextPaint drawState) {
        apply(drawState);
    }

    @Override
    public void updateMeasureState(final TextPaint paint) {
        apply(paint);
    }

    private void apply(final Paint paint) {
        int oldStyle;
        Typeface old = paint.getTypeface();
        if (old == null) {
            oldStyle = 0;
        } else {
            oldStyle = old.getStyle();
        }

        if (newType != null) {
            int fake = oldStyle & ~newType.getStyle();
            if ((fake & Typeface.BOLD) != 0) {
                paint.setFakeBoldText(true);
            }

            if ((fake & Typeface.ITALIC) != 0) {
                paint.setTextSkewX(-0.25f);
            }

            paint.setTypeface(newType);
        }

        paint.setTextSize(textSize);
        paint.setColor(textColor);
    }

}