无法向自定义的calloutView添加点击手势

Question

我的应用程序中有一个地图视图，它需要为每个地图注释定制calloutView。因此，我为这个定制的calloutView提供了一个XIB文件。这是我的地图视图控制器的代码

- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view {
    CustomCalloutView *calloutView = (CustomCalloutView *)[[[NSBundle mainBundle] loadNibNamed:@"CustomCalloutView" owner:self options:nil] objectAtIndex:0];
    [calloutView.layer setCornerRadius:10];
    CGRect calloutViewFrame = calloutView.frame;
    calloutViewFrame.origin = CGPointMake(-calloutViewFrame.size.width/2 + 15, -calloutViewFrame.size.height);
    calloutView.frame = calloutViewFrame;

    // some other code such as load images for calloutView

    UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap)];
    singleTap.numberOfTapsRequired = 1;
    [calloutView addGestureRecognizer:singleTap];
    [view addSubview:calloutView];
}

- (void)handleSingleTap{
    NSLog(@"it works");
}

但是，handleSingleTap:从未被调用过。相反，calloutView上的每一个点击都只会简单地忽略calloutView。我还试图在calloutView上添加一个按钮，但是点击它也会导致calloutView被取消，而不是调用按钮操作。

有人能帮忙吗？

更新

我试着修改代码

    [view addSubview:calloutView];

至

    [self.view addSubview:calloutView];

它将自定义的calloutView添加到主容器视图中，而不是mapView。

然后，它可以很好的拍打手势。因此，我认为问题应该是由mapView引起的，似乎mapView将calloutView上的所有触摸事件都传递给了自己。有人对此有想法吗？

Answer 1

好的。我终于想出了解决办法。我们需要为MKAnnotationView定制一个类来解决这个问题。以下是.m文件中的代码

- (UIView*)hitTest:(CGPoint)point withEvent:(UIEvent*)event
{
    UIView* hitView = [super hitTest:point withEvent:event];
    if (hitView != nil)
    {
        [self.superview bringSubviewToFront:self];
    }
    return hitView;
}

- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent*)event
{
    CGRect rect = self.bounds;
    BOOL isInside = CGRectContainsPoint(rect, point);
    if(!isInside)
    {
        for (UIView *view in self.subviews)
        {
            isInside = CGRectContainsPoint(view.frame, point);
            if(isInside)
                break;
        }
    }
    return isInside;
}

希望这能对其他人有所帮助。

Answer 2

您需要修改您的tap手势实现&方法called.Have查看并检查它是否工作。

UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap)];
singleTap.numberOfTapsRequired = 1;
[calloutView addGestureRecognizer:singleTap];
[view addSubview:calloutView];


- (void)handleSingleTap:(UIGestureRecognizer *)recognizer {
    NSLog(@"it works");
}