view翻转动画

[UIView animateWithDuration:0.1

delay:0

options:UIViewAnimationOptionRepeat

animations:^{

view.transform = CGAffineTransformMakeScale(1.0,-1.0);

}

completion:^(BOOL finished) {

//                            view.transform = CGAffineTransformMakeScale(1.0,-1.0);

}];

[UIView animateWithDuration:1 delay:0 usingSpringWithDamping:0.5 initialSpringVelocity:0 options:UIViewAnimationOptionLayoutSubviews animations:^{

view.frame=CGRectMake(10, 100, SCREEN_WIDTH-20, 300) ;

// view.transform = CGAffineTransformMakeScale(1.0,-1.0);

} completion:^(BOOL finished) {

[view.layer removeAllAnimations];

view.transform = CGAffineTransformMakeScale(1.0,1.0);

}];