[UIView animateWithDuration:0.3 delay:0 options:UIViewAnimationOptionCurveEaseInOut animations:^{
[m_indicatorView setCenter:CGPointMake(kScreenWidth*1.0/5.0*(index+0.5), m_indicatorView.center.y)];
} completion:NULL];
view 加的动画效果
原文：http://www.cnblogs.com/wubangbang/p/5207196.html
