翻转查看Iphone

Question

请考虑下面的代码,并告诉我我做错了什么.

我想在两个UIViews之间翻转.

不知何故,当我从初始视图中移开时,我只是得到翻转的视图,没有动画.当我回头时,动画显示就好了.

翻转是从视图本身的按钮触发的.

- (IBAction)showMoreInfo:(id)sender
{
    UIView *moreInfo = self.flipView;

    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:2.0];
    [UIView setAnimationBeginsFromCurrentState:NO];
    [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES];

    UIView *parent = self.view.superview;
    [self.view removeFromSuperview];

    [parent addSubview:moreInfo];

    [UIView commitAnimations];

}



- (IBAction)showLessInfo:(id)sender
{
    UIView *lessInfo = self.view;

    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:2.0];
    [UIView setAnimationBeginsFromCurrentState:NO];
    [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:self.flipView cache:YES];

    UIView *parent = self.flipView.superview;
    [self.flipView removeFromSuperview];

    [parent addSubview:lessInfo];

    [UIView commitAnimations];

}

Answer 1

这可能是因为您没有使用容器视图作为转换视图.请参阅有关setAnimationTransition:forView:cache的文档:

如果要在转换期间更改视图的外观(例如,从一个视图翻转到另一个视图),则使用容器视图(UIView的实例),如下所示:

1. 开始动画块.
2. 在容器视图上设置转换.
3. 从容器视图中删除子视图.
4. 将新子视图添加到容器视图中.
5. 提交动画块.

尝试self.view.superview在动画过渡视图中使用showMoreInfo:

该showLessInfo:方法有效的原因是您正在使用容器视图.

Answer 2

你可以使用你的MainWindow(UIWindow)作为UIView的UIWindow内容的容器视图吗？

iPhone 3.0还通过presentModalViewController方法引入了翻转事务:

CustomViewController *vc = [[CustomViewController alloc]
    initWithNibName:@"CustomViewController" bundle:nil];

vc.delegate = self;

// The magic statement. This will flip from right to left.
// present the modal view controller then when you dismissModalViewController
// it will transition flip from left to right. Simple and elegant.
vc.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;

[self presentModalViewController:vc animated:YES];

[vc release];