@Override
void updateTextPositions(int position, float positionOffset, boolean force) {
final Rect r = mTempRect;
int bottom = getHeight();
int left = mCurrText.getLeft() - mTabPadding;
int right = mCurrText.getRight() + mTabPadding;
int top = bottom - mIndicatorHeight;
r.set(left, top, right, bottom);
super.updateTextPositions(position, positionOffset, force);
mTabAlpha = (int) (Math.abs(positionOffset - 0.5f) * 2 * 0xFF);
left = mCurrText.getLeft() - mTabPadding;
right = mCurrText.getRight() + mTabPadding;
r.union(left, top, right, bottom);
invalidate(r);
}
