画笔粗细的设置

    public static void setTypeFace(Context context, Paint paint, Typeface tf) {
        if(tf!=null){
            paint.setTypeface(tf);
        }else{
//            paint.setTypeface(Typeface.DEFAULT_BOLD);
            Typeface font = Typeface.create(Typeface.SANS_SERIF, Typeface.NORMAL);
            paint.setTypeface(font);
        }
    }