UIView动画animation 水平移动UILabel

这样的_currentChosedLabel会从最初的位置动画移动到下面设置的位置；
[UIView animateWithDuration:0.3950
animations:^{
_currentChosedLabel.frame =
CGRectMake(sender.frame.origin.x,
_currentChosedLabel.frame.origin.y, sender.frame.size.width,
_currentChosedLabel.frame.size.height);
} completion:^(BOOL finished){

}];
// [UIView beginAnimations:nil context:NULL];
// [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
// [UIView setAnimationBeginsFromCurrentState:YES];
// [UIView setAnimationDuration:0.3950];
// _currentChosedLabel.frame = CGRectMake(sender.frame.origin.x, _currentChosedLabel.frame.origin.y, sender.frame.size.width, _currentChosedLabel.frame.size.height);
// [UIView commitAnimations];