Prevent touch event on object behind contentView

[52616e646f6d4279746573]

Hi,

I am trying to setup a callout that is roughly 200 x 200 is size. The callout pops up fine size is correct. I used a UIView and set contentView = myUIView.

I need to trigger a function when user press on callout. Instead it will dismiss the callout. As well if there is an annotation under the calloutView, it will select this annotation and show a new callout view.

How would I go about preventing the callout from being dismissed as well as firing a function on touch?

Thanks.

[nfarina]

Are you using the callout view inside Apple's MKMapView? If so, you need to do a bit of work to make touch handling work properly. Take a look at MapKitComparisonController.m towards the bottom, in the included CalloutSamples app.

[52616e646f6d4279746573]

Yes I am using MKMapView.

Following your advice, I have looked through the example again and created a custom subclass of MKMapView. But it still does not seem to work. here is my code for the subclass. I can't seem to get it to work, It crashes as soon as I touch the map.

 class mapSub : MKMapView {

func gestureRecognizer(gestureRecognizer: UIGestureRecognizer!, shouldReceiveTouch touch: UITouch!) -> CBool {

    println(touch.view)
    if touch.view .isKindOfClass(UIControl) {
         println("no dice")
        return false
    }
    else {
        println("make it so Geordie")
        return true
    }
}

override func hitTest(point: CGPoint, withEvent e: UIEvent?) -> UIView? {

    if let cM:UIView = self.hitTest(calloutView.convertPoint(point, fromView: self), withEvent: e)
    {
        println("direct hit")
        return cM
    }

    return super.hitTest(point, withEvent: e)
}
}