如何知道哪個的viewController當子視圖除去

 
- (void)animationDidStop:(CAAnimation *)theAnimation finished:(BOOL)flag 
{ 
    [[self model] setTransitioning:NO]; 
    [[[[self view]subviews] objectAtIndex:0] removeFromSuperview]; 
} 
 

How can I tell what kind of viewController controls the subview at index 0? 
If it's a QuizViewController I need to call a function on it. 

Thanks in advance. 

Good answers. I don't believe I explained enough. This is a all in a view controller that is a view stack. The view controller adds and deletes views manually with an animated transition. I am not using a navigationController and cannot in this particular instance for other reasons.
 
Sometimes the views I add are simple UIImageViews. Sometimes they are QuizViews. The QuizViews have a QuizViewController because they need internal functionality. Here are the two functions I use to add the views. 

- (void)loadQuiz:(NSInteger)quizNum 
 

{
如果（[自quizViewController] =零！）
{
[自setQuizViewController：無]; 
} 
QuizViewController * quiz = [[QuizViewController alloc] initWithNibName：@「QuizViewController」bundle：nil]; 
[測驗setUp：quizNum]; 
[self setQuizViewController：quiz]; 
[quiz release]; 

[[self view] addSubview:[[self quizViewController]view]]; 
[self setSlide1:[[[self view] subviews] objectAtIndex:0]]; 
[self setSlide2:[[[self view] subviews] objectAtIndex:1]]; 
[[self slide1] setHidden:NO]; 
[[self slide2] setHidden:YES]; 

[self performTransition]; 
 

} 

- (void)loadImage:(NSString *)slideImage 
 

{ 

UIImage *tempImg = [UIImage imageWithContentsOfFile:[Utilities localPathForFileName:slideImage]]; 
UIImageView *temp = [[UIImageView alloc] initWithImage:tempImg]; 
[[self view] addSubview:temp]; 
[temp release]; 

//[topView release]; 

if ([[[self view]subviews] count] > 2) { 
     //add the 2nd subview 
     //[[[[self view]subviews] objectAtIndex:0] removeFromSuperview]; 
} 

[self setSlide1:[[[self view] subviews] objectAtIndex:0]]; 
[self setSlide2:[[[self view] subviews] objectAtIndex:1]]; 
[[self slide1] setHidden:NO]; 
[[self slide2] setHidden:YES]; 

NSLog(@"%s %d",__FUNCTION__,[[[self view]subviews] count]); 
[self performTransition];

}

所以我的問題仍然是，在animationDidStop功能，我怎樣檢測，如果它是一個測試嗎？

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2010-12-09 intomo

如果（[自我視圖]子視圖] objectAtIndex：0] isKindOfClass：CLASS（類）） ...

或isMemberofClass

從內存中，因此你必須對它進行測試。 ..

您也可以在創建視圖時在視圖上設置標記，然後在檢索視圖時查找視圖。

someUIView.tag = 99;

然後

如果（[自我視圖]子視圖] objectAtIndex：0] == .TAG 99）

...

乾杯

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2010-12-09 06:02:03 Jordan

很好的答案。我不相信我足夠的解釋。 – intomo 2010-12-11 06:58:57

謝謝。這工作。 – intomo 2010-12-11 21:28:11

你保持一個UIViewController中（例如對於*的UIViewController currentViewController）對象，用於保持當前視圖控制器的軌跡。
現在，在按照我的理解被多個視圖控制器推入的視圖控制器之前，您需要使用您正在推送的viewController來設置currentViewController。
所以，如果你在QuizViewController中，並推動viewController哪些控制子視圖，你首先設置它的currentController，然後推它。
subViewController.currentController = self;
[self.navigationController pushViewController：subViewController animated：YES];

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2010-12-09 06:03:08

視圖本身並沒有視圖控制器附加到它們，所以你的問題措辭的方式不太合理。如果你正在做的是將一個UIView子類（比如說QuizView）作爲一個子視圖，並且需要知道何時該子類被刪除並對其執行操作，那麼代碼將如下所示;

-(void) animationDidStop:(CAAnimation*)theAnimation finished:(BOOL)flag 
{ 
    [[self model] setTransitioning:NO]; 
    UIView *subview = [self.view.subviews objectAtIndex:0]; 
    if([subview isKindOfClass:[QuizView class]]) 
    { 
     [(QuizView*)subview yourFunction]; 
    }  

    [subview removeFromSuperview]; 
}

如果你的意思是不同的，你可以提供一些代碼，我也許能幫助更多的，但就像我說你原來的問題不是很清楚，我這是不是你的意思;）

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2010-12-09 06:31:22 MahatmaManic

如何知道哪個的viewController當子視圖除去

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