package me.yluo.ruisiapp.widget.htmlview.spann; import android.text.TextPaint; import android.text.style.MetricAffectingSpan; public class Sub extends MetricAffectingSpan{ @Override public void updateDrawState(TextPaint tp) { tp.baselineShift -= (int) (tp.ascent() / 2); } @Override public void updateMeasureState(TextPaint tp) { tp.baselineShift -= (int) (tp.ascent() / 2); } }