uiscrollview - 检测 MKMapView 的平移 + 减速

Question

我正在尝试在 MKMapView 上捕获平移和“滚动结束”。使用手势识别器可以轻松实现平移。然而，MKMapView 似乎没有在 iOS 6 中实现 UIScrollViewDelegate。这使得解决方案在 Is there way to limit MKMapView maximum zoom level? 中。不行。

想法？理想情况下，我会像这样利用 UIScrollViewDelegate:

-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
    if ([super respondsToSelector:@selector(scrollViewDidEndDecelerating:)]) {
        [super scrollViewDidEndDecelerating:scrollView];
    }
    [self.myDelegate mapDidFinishPanning:self];
}

-(void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:    (BOOL)decelerate {
    if ([super respondsToSelector:@selector(scrollViewDidEndDragging:)]) {
        [super scrollViewDidEndDragging:scrollView];
    }

if(!decelerate) {
    [self.myDelegate mapDidFinishPanning:self];
}

}

-(void)scrollViewWillBeginDragging:(UIScrollView *)scrollView {
    if ([super respondsToSelector:@selector(scrollViewWillBeginDragging:)]) {
        [super scrollViewWillBeginDragging:scrollView];
    }
    [self.myDelegate mapDidBeginPanning:self];
}

在扩展 MKMapView 的类中

@interface MyMapView : MKMapView <UIScrollViewDelegate, UIGestureRecognizerDelegate>

但这在 iOS 6 中不起作用。我在 MKMapViewDelegate 中看不到任何足够的东西。

Answer 1

回答我自己。我实现了所有 MKMapViewDelegate 的方法，似乎

- (void)mapView:(MKMapView *)mapView regionWillChangeAnimated:(BOOL)animated

在锅上调用，并且

- (void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated

一旦减速停止(而不是之前)就被调用。