Span的简单用法

用的时候随便搜搜都乱七八糟的那么复杂

String temperatureStr = null;
        if (weather != null) {
            temperatureStr = weather.showapi_res_body.now.temperature + "℃";
            Spannable sp = new SpannableString(temperatureStr);
            sp.setSpan(new AbsoluteSizeSpan(15, true), temperatureStr.length() - 1, temperatureStr.length(),
                    Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
            weather_temperature_tv.setText(sp);