内容：按钮移动，向下，隐藏，旋转，时长

- (IBAction)btnRight:(UIButton *)sender {
    [UIView beginAnimations:@"moveRigtt" context:nil];
    sender.center=CGPointMake(63, 200);
    [UIView commitAnimations];
}

- (IBAction)btnHide:(UIButton *)sender {
    [UIView beginAnimations:@"hide" context:nil];
    [UIView setAnimationDuration:3];
    sender.alpha=0;
    [UIView commitAnimations];
}

- (IBAction)btnRotate:(UIButton *)sender {
    [UIView beginAnimations:@"rotate" context:nil];
    [UIView setAnimationDuration:2];
    [UIView setAnimationRepeatCount:2];
    sender.transform=CGAffineTransformRotate(sender.transform,M_PI_2);

    [UIView commitAnimations];
}

转载请注明：于哲的博客 » iOS学习笔记（7）：动画