問題：無法將NSUInteger從一個ViewController傳遞到另一個ViewController

Question

我想從ViewController傳遞一個數字給TweetViewController。一切工作正常，我NSUInteger做到了財產（randomNumber和tweetNumber）：

TweetViewController *Second = [[TweetViewController alloc] initWithNibName:nil bundle:nil]; 
    Second.tweetNumber = randomNumber; 
    Second.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; 
    [self presentModalViewController:Second animated:YES]; 
    [Second release]; 

我現在已經改變了我的代碼，因爲我不希望只有我TweetViewVontroller被加載。我想要在Tweet-和InfoViewController之間進行主屏幕滑動。我使用一個SwitchViewController，它將加載而不是TweetViewController。該SwitchViewController看起來是這樣的（窗口1/2的UIViewController）：

UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0,0,320,460)]; 
UIView *contentView = [[UIView alloc] initWithFrame:CGRectMake(0,0,640,460)]; 

self.window1 = [TweetViewController alloc]; 
self.window2 = [InfoViewController alloc]; 


[contentView addSubview:self.window1.view]; 

CGRect f = self.window2.view.frame; 
f.origin.x = 320; 
self.window2.view.frame = f; 

[contentView addSubview:self.window2.view]; 


[scrollView addSubview:contentView]; 
scrollView.contentSize = contentView.frame.size; 

scrollView.pagingEnabled = YES; 

self.view = scrollView; 

[contentView release]; 
[scrollView release]; 

現在我不能從FirstViewController到TweetViewController經過數。任何想法，如何解決問題？

Answer 1

window1.tweetNumber = randomNumber; 

如果你想在每次滾動scrollview時更新它，你可能需要查看UIScrollViewDelegate協議。特別是scrollViewWillBeginDragging: