试图拦截父 UIView 上的触摸事件,该父 UIView 封装了 UIScrollView 和另一个 UIView(叠加层),它们并排放置(意味着彼此重叠,在同一个容器视图中)。截至目前,我只是试图打印出在父 UIView 上确认 touchesBegan 事件的结果,但它抛出了 EXC_BAD_ACCESS,并出现以下错误:
Program received signal: “EXC_BAD_ACCESS”.
warning: Unable to restore previously selected frame.
Data Formatters temporarily unavailable, will re-try after a 'continue'. (Not safe
to call dlopen at this time.)
我认为所有相关代码都应该在下面。我也将整个项目上传到http://devmu.com/transfer/NoteMap.zip,如果这样更容易看到的话。
UIViewController 的加载视图:
- (void)loadView {
[super loadView];
[[NSBundle mainBundle] loadNibNamed:@"ContainerView" owner:self options:nil];
ContainerView *container = self.containerView = [[ContainerView alloc] initWithFrame:[UIScreen mainScreen].applicationFrame];
self.view = container;
//[self.view addSubview:container];
[container release];
};
-the dealloc function releases the containerView
容器视图:
@implementation ContainerView
@synthesize overlayView=_overlayerView, scrollView=_scrollView;
- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
//setup scrollview
[[NSBundle mainBundle] loadNibNamed:@"GridScrollView" owner:self options:nil];
self.scrollView = [[GridScrollView alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];
[self addSubview:self.scrollView];
//setup overlayview
NSArray *nibOverlayContents = [[NSBundle mainBundle] loadNibNamed:@"MapOverlayView" owner:self options:nil];
self.overlayView = [nibOverlayContents objectAtIndex:0];
[self addSubview:self.overlayView];
}
return self;
}
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
[super touchesBegan:touches withEvent:event];
NSLog(@"ContainerView touchesBegan");
}
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
NSLog(@"ContainerView touchesEnded");
}
- (void)dealloc {
[self.overlayView release];
[self.scrollView release];
[super dealloc];
}
我有 ContainerView 的单独 nib 文件(从控制器加载),它是两个子视图,MapView 和 MapOverlayView(从 ContainerView 的 init 加载)。不知道这是否重要......但笔尖文件只引用了它们包含的视图。IE。ContainerView.xib 的 File Owner 是 UIViewController,它的唯一视图是 ContainerView。MapView.xib 和 MapOverlayView.xib 的 File Owner 是 ContainerView,其中包含 MapView 和 MapOverlayView 的两个引用(ContainerView/File Owner 的 IBOutlets)。
这可能是什么原因造成的?
谢谢你的帮助。