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我有一个UINavigationController包含一个UIViewController（比如'FirstVC'）。这个 'FirstVC' 包含一个UIScrollView并且在每个页面上UIScrollView我都添加了另一个UIViewCotroller（比如'SecondVC'）。这个SecondVC包含一个UIWebView有几个链接的。我想推另一个UIViewController（比如'ThirdVC'）UIScrollView。但是当我尝试做同样的事情时，它会使我的应用程序崩溃。这是我应用的代码：

第一风投

- (void)viewDidLoad{

    [super viewDidLoad];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(ShowThirdVCNotification:) name:@"ShowThirdVC" object:nil]; 

}

-(void)showAlbumNotification:(id)notificationObject{
    NSLog(@"ShowThirdVCNotification: %@", [notificationObject object]);// It's an array

    ThirdVC *controller = [[ThirdVC alloc] initWithNibName:@"ThirdVC" bundle:nil];
    [controller setImageArr:[notificationObject object]];
    [self.navigationController pushViewController:controller animated:NO];
}

/* SecondVC.view 在加载时被添加到 FirstVC 的 scrollView */

第二VC：

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
NSString *urlStr = [NSString stringWithFormat:@"%@", [request URL]];

    if ([[urlStr lastPathComponent] rangeOfString:@".jpg"].length) {
        [[NSNotificationCenter defaultCenter] postNotificationName:@"ShowAlbum" object:self.imageDetailArr];
        return NO;
    }
return YES;
}

在线程 1 上，它列出了以下内容：

4   0x00b0a8ab in -[UIWebScrollView didMoveToWindow] ()
5   0x007a583e in -[UIView(Internal) _didMoveFromWindow:toWindow:] ()
6   0x007af6d1 in -[UIScrollView _didMoveFromWindow:toWindow:] ()
7   0x007a54bb in -[UIView(Internal) _didMoveFromWindow:toWindow:] ()
8   0x007a54bb in -[UIView(Internal) _didMoveFromWindow:toWindow:] ()
9   0x007a54bb in -[UIView(Internal) _didMoveFromWindow:toWindow:] ()
10  0x007af6d1 in -[UIScrollView _didMoveFromWindow:toWindow:] ()
11  0x007a54bb in -[UIView(Internal) _didMoveFromWindow:toWindow:] ()
12  0x007a54bb in -[UIView(Internal) _didMoveFromWindow:toWindow:] ()
13  0x007a1c72 in -[UIView(Hierarchy) _postMovedFromSuperview:] ()
14  0x007a04c6 in __UIViewWasRemovedFromSuperview ()
15  0x007a0141 in -[UIView(Hierarchy) removeFromSuperview] ()
16  0x009e69bb in -[UINavigationTransitionView _cleanupTransition] ()
17  0x009e6c86 in -[UINavigationTransitionView _navigationTransitionDidStop] ()
18  0x0079a499 in -[UIViewAnimationState sendDelegateAnimationDidStop:finished:] ()
19  0x00799d6d in +[UIViewAnimationState popAnimationState] ()
20  0x007a326c in +[UIView(Animation) commitAnimations] ()
21  0x009e6702 in -[UINavigationTransitionView transition:fromView:toView:] ()
22  0x009e5ccb in -[UINavigationTransitionView transition:toView:] ()
23  0x008422b7 in -[UINavigationController _startTransition:fromViewController:toViewController:] ()
24  0x008423df in -[UINavigationController _startDeferredTransitionIfNeeded] ()
25  0x00842561 in -[UINavigationController __viewWillLayoutSubviews] ()
26  0x0095e4ca in -[UILayoutContainerView layoutSubviews] ()
27  0x007a8301 in -[UIView(CALayerDelegate) layoutSublayersOfLayer:] ()
4

1 回答 1

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我认为你使用UIWebViewNavigationType条件并解决你的问题试试这个： -

 - (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
        NSString *urlStr = [NSString stringWithFormat:@"%@", [request URL]];

        if ([[urlStr lastPathComponent] rangeOfString:@".jpg"].length) {

            if (navigationType == UIWebViewNavigationTypeLinkClicked)
            {
                ThirdVC *controller = [[ThirdVC alloc] initWithNibName:@"ThirdVC" bundle:nil];
                controller setImageArr:self.imageDetailArr];
                [self.navigationController pushViewController:controller animated:NO];

            }
            return NO;
        }
        return YES;
    }
于 2012-09-06T08:15:15.057 回答