iOS共享view动画简单实现(微博头条文章动画)

微博可能是修改了navigationcontroller的push动画, 没做具体研究...

想简单一点的话下列方法也可以, 基本就是个障眼法

场景: 点击tableview的cell后push一个控制器, 该控制器头部view有与该cell有相同的布局

解决: 把需要push的控制器加入当前view, 然后执行动画, 使之看起来和普通navigationcontroller下的控制器一样, 原frame为点击的cell的frame, 动画执行完毕后移除该控制器并且无动画push改控制器, 效果基本达到, navigationbar的动画因为无动画push导致变化地比较突兀, 此处手动加了一下动画.

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{

DDGiftListCell* cell = [self.tableView cellForRowAtIndexPath:indexPath];

DDPostDetailController* postDetail = [[DDPostDetailController alloc] init]];

[self addChildViewController:postDetail];

postDetail.view.frame = cell.frame;

[self.view addSubview:postDetail.view];

[UIView animateWithDuration:0.3 animations:^{

postDetail.view.frame = CGRectMake(0, self.tableView.contentOffset.y , self.view.width, self.view.height);

} completion:^(BOOL completed){

[postDetail.view removeFromSuperview];

[postDetail removeFromParentViewController];

//navigationbar添加动画

CATransition *transition = [CATransition animation];

transition.duration = 0.3f;

transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];

transition.type = kCATransitionMoveIn;

transition.subtype = kCATransitionFade;

[self.navigationController.navigationBar.layer addAnimation:transition forKey:nil];

[self.navigationController pushViewController:postDetail animated:NO];

}];

}