UIScrollView里面的UIScrollView
我有一个UIScrollView与另一个UIScrollView里面。 他们都水平滚动，并具有pagingEnabled = YES 。 假设我开始滚动内部滚动视图，并达到最右边的界限。 如果我继续滚动它，那么外面的scrollView开始移动。 我需要避免这一点。 内部观点应该以橡皮筋效应跳跃，外部应该留在原地。
希望这是明确的，但这里是一个草图： 
我试着设置outerView.scrollEnabled = NO; 喜欢这个：
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView { outerView.scrollEnabled = NO; }
，它的工作原理是我需要的，如果滚动innerView。 OuterView不再滚动。 但是如果我想再次滚动outerView，我必须将scrollEnabled设置回YES。 我试过在这里做：
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView { outerView.scrollEnabled = YES; }
，但我得到了同样的问题：达到innerView outerView的最右边界滚动，而不是innerView跳跃与橡皮筋效应。
任何build议如何解决问题？
UPDATE
此解决scheme始终工作：
@implementation InnerScrollViewController <UIScrollViewDelegate, UIGestureRecognizerDelegate> - (void)viewDidLoad { UISwipeGestureRecognizer* swipeGesture = [[[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:)] autorelease]; swipeGesture.delegate = self; [self.view addGestureRecognizer:swipeGesture]; } - (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch { _outerScrollView.scrollEnabled = NO; return YES; } - (void)handleSwipe:(UIGestureRecognizer*)gestureRecognizer { } - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView { _outerScrollView.scrollEnabled = NO; } - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate { if (!decelerate) { _outerScrollView.scrollEnabled = YES; } } - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView { _outerScrollView.scrollEnabled = YES; } @end
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老解答：不总是工作
这是我解决问题的方法：
@implementation InnerView - (id)initWithFrame:(CGRect)frame { self = [super initWithFrame:frame]; if (self) { self.delaysContentTouches = NO; } return self; } - (BOOL)touchesShouldBegin:(NSSet *)touches withEvent:(UIEvent *)event inContentView:(UIView *)view { return NO; }
据我所知， self.delaysContentTouches = NO; 使所有事件立即被传递，并且- (BOOL)touchesShouldBegin:(NSSet *)touches withEvent:(UIEvent *)event inContentView:(UIView *)view阻止响应者链传递这些事件。
通过以下方式修改您的方法：
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView { if(scrollView == innerView) outerView.scrollEnabled = NO; else outerView.scrollEnabled = YES; } - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView { if(scrollView == innerView) { if(innerView.contentOffset.x + innerView.frame.size.width == innerView.contentSize.width) { outerView.scrollEnabled = NO; } else { outerView.scrollEnabled = YES; } } }
这适用于我：
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView { outerScrollView.scrollEnabled = NO; } - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView { [NSTimer scheduledTimerWithTimeInterval:0.3 target:[NSBlockOperation blockOperationWithBlock:^{ outerScrollView.scrollEnabled = YES; }] selector:@selector(main) userInfo:nil repeats:NO]; }
请记住在类声明中采用UIScrollViewDelegate，并将innerScrollView的委托设置为self（不要指派outerScrollView的委托）
我有一个类似的问题。 我find了解决scheme，但它只适用于innerScrollView.bounces = NO 。
@interface PageCtrl () @property (weak, nonatomic) IBOutlet UIScrollView *innerScrollView; @property(nonatomic) UIPanGestureRecognizer *panLockScroll; @end @implementation PageCtrl - (void)viewDidLoad { // ... self.innerScrollView.delegate = self; self.innerScrollView.bounces = NO; // disable bounces! self.panLockScroll = [[UIPanGestureRecognizer alloc]initWithTarget:self action:nil]; self.panLockScroll.delegate = self; [self.innerScrollView addGestureRecognizer:self.panLockScroll]; } - (BOOL)gestureRecognizer:(UIGestureRecognizer*)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer*)otherGestureRecognizer{ if( gestureRecognizer == self.panLockScroll && otherGestureRecognizer == self.innerScrollView.panGestureRecognizer ){ return YES; } return NO; } @end