iOS 动画

1. 从中间展开一个View

    CGRect screenFrame = [[UIScreen mainScreen] bounds];

    [detailView setFrame:CGRectMake(screenFrame.size.width/2, 230/2, 0, 0)];

    //show aniamtion

    [UIView animateWithDuration:0.25 animations:^{

        self.detailView.alpha = 1.f;

        [detailView setFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];

    } completion:^(BOOL finished) {

        [detailView setRenderStatic:YES];

        [detailView reloadData];

        [MTConfig setIsCompleteTaskFlag:NO];

  从中间一点消失一个View

    [UIView animateWithDuration:0.25

                     animations:^{

                         detailView.clipsToBounds = YES;

                         [detailView setFrame:CGRectMake(screenFrame.size.width/2, 230/2, 0, 0)];

                     }

                     completion:^(BOOL finished){

                         [mainViewController refreshView];

                         if (detailView) {

                             [detailView removeFromSuperview];

                             detailView = nil;

                         }

                     }

2.   //向上翻滚动画

    CATransition *animation = [CATransition animation];

    animation.duration = 0.5;

    animation.timingFunction = UIViewAnimationCurveEaseInOut;

    animation.fillMode = kCAFillModeForwards;

    animation.removedOnCompletion = NO;

    animation.type = kCATransitionPush;

    animation.subtype = kCATransitionFromTop;

    [btn.layeraddAnimation:animationforKey:@"animation"];