UIScrollview 与 UIButtons - 如何重新创建跳板？

我正在尝试在我的应用程序中创建一个类似跳板的界面。我正在尝试使用添加到 UIScrollView 的 UIButtons。我遇到的问题是按钮没有将任何触摸传递给 UIScrollView - 如果我尝试轻弹/滑动并碰巧按下按钮，它不会注册 UIScrollView，但是如果我轻弹之间的空格按钮它就会起作用。如果我触摸按钮，它们就会点击/工作。

是否有属性或设置强制按钮将触摸事件发送到其父级（超级视图）？在添加 UIScrollView 之前是否需要将按钮添加到其他内容？

这是我的代码：

//init scrolling area
UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 480, 480)];
scrollView.contentSize = CGSizeMake(480, 1000);
scrollView.bounces = NO;
scrollView.delaysContentTouches = NO;

//create background image
UIImageView *rowsBackground = [[UIImageView alloc] initWithImage:[self scaleAndRotateImage:[UIImage imageNamed:@"mylongbackground.png"]]];
rowsBackground.userInteractionEnabled = YES;

//create button
UIButton *btn = [[UIButton buttonWithType:UIButtonTypeCustom] retain];
btn.frame = CGRectMake(100, 850, 150, 150);
btn.bounds = CGRectMake(0, 0, 150.0, 150.0);
[btn setImage:[self scaleAndRotateImage:[UIImage imageNamed:@"basicbutton.png"]] forState:UIControlStateNormal];
[btn addTarget:self action:@selector(buttonClick) forControlEvents:UIControlEventTouchUpInside];

//add "stuff" to scrolling area
[scrollView addSubview:rowsBackground];
[scrollView addSubview:btn];

//add scrolling area to cocos2d
//this is just a UIWindow
[[[Director sharedDirector] openGLView] addSubview:scrollView];

//mem-mgmt
[rowsBackground release];
[btn release];
[scrollView release];

对我有用的解决方案包括：

1. Setting canCancelContentTouches in UIScrollView to YES.
2. 延伸UIScrollView覆盖touchesShouldCancelInContentView:(UIView *)view回来YES when view is a UIButton.

根据文件touchesShouldCancelInContentView返回“YES取消进一步触摸消息以查看，NO以便查看继续接收这些消息。默认返回值为YES如果视图不是UIControl目的;否则，它返回NO."

Since UIButton is a UIControl需要扩展才能获得canCancelContentTouches使滚动生效。