NSInvalidArgumentException [英] NSInvalidArgumentException

问题描述

我从这个例程中添加了：（id）发件人后，我得到一个崩溃，所以我可以确定哪个按钮调用它。当设置为纯旧的toggleView3它工作完美。

I'm getting a crash from this routine after adding the :(id)sender so I could determine which button called it. When set up as plain old toggleView3 it works perfectly. The crash occurs when detailView is toggled back to docView.

'NSInvalidArgumentException'，原因：'*** - [RootViewController toggleView3]：无法识别的选择器发送到实例0x524a00'
2009-04-07 12：29：44.421 eTarot [11405：20b]堆栈：

-(IBAction)toggleView3:(id)sender{


    if (detailViewController == nil) {
        [self loadDetailViewController];
    }

    UIView *docView = docViewController.view;
    UIView *detailView = detailViewController.view;

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:1];
    [UIView setAnimationTransition:([docView superview] ? UIViewAnimationTransitionFlipFromRight : UIViewAnimationTransitionFlipFromLeft) forView:self.view cache:YES];

    if ([docView superview] != nil) {
        [detailViewController viewWillAppear:YES];
        [docViewController viewWillDisappear:YES];
        [docView removeFromSuperview];

        [self.view addSubview:detailView];
        [self.view insertSubview:detailNavigationBar aboveSubview:detailView];
        [docViewController viewDidDisappear:YES];
        [detailViewController viewDidAppear:YES];

    } else {
        [docViewController viewWillAppear:YES];
        [detailViewController viewWillDisappear:YES];
        [detailView removeFromSuperview];
        [detailNavigationBar removeFromSuperview];
        [self.view addSubview:docView];
        [detailViewController viewDidDisappear:YES];
        [docViewController viewDidAppear:YES];
    }
    [UIView commitAnimations];
}

推荐答案

当选择器的正确名称为 toggleView3：时，即使用冒号和参数时，消息 toggleView3 它们可能看起来与你相似，但它们与Objective-C完全不同。

You're sending a view the message toggleView3 when the correct name of the selector is toggleView3: — that is, with a colon and argument. They may look similar to you, but they're totally different methods to Objective-C.

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