2016.01.22 简单动画

//横向、纵向移动
[UIView animateWithDuration:0.5 animations:^{
self.aView.frame = CGRectMake(_aView.frame.origin.x, _aView.frame.origin.y + 50, _aView.frame.size.width, _aView.frame.size.height);
}];

//渐变效果
[UIView animateWithDuration:0.5 animations:^{
_aView.alpha = !_aView.alpha;
}];

//翻页效果
[UIView beginAnimations:nil context:nil];//开始动画的配置
[UIView setAnimationDuration:0.5];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn];//动画的『节奏』
[UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:_aView cache:NO];
[UIView commitAnimations];//动画配置完毕，提交动画

//旋转
[UIView animateWithDuration:0.5 animations:^{
//只能做一次
//        _aView.transform = CGAffineTransformMakeRotation(M_PI);
//能多次
_aView.transform = CGAffineTransformRotate(_aView.transform, M_PI_4);
}];

//放大效果
[UIView animateWithDuration:0.5 animations:^{
_aView.transform = CGAffineTransformMakeScale(2, 2);
}];

//缩小
[UIView animateWithDuration:0.5 animations:^{
_aView.transform = CGAffineTransformScale(_aView.transform, 0.7, 0.7);
}];

//平移
[UIView animateWithDuration:0.5 animations:^{
_aView.transform = CGAffineTransformTranslate(_aView.transform, 10, 10);
}];