Question

我正在尝试捕捉MKMapView上的平移和“滚动结束”。使用手势识别器可以轻松进行平移。但是，MKMapView似乎没有在iOS 6中实现UIScrollViewDelegate。这使得Is there way to limit MKMapView maximum zoom level?中的解决方案无效。

思考？理想情况下，我只会利用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];
}

扩展MKMapView

的类

@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内容。

Answer 1

回答自己。我实现了所有MKMapViewDelegate的方法，似乎

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

在pan上调用，

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

一旦减速停止（而不是之前），就会调用

。

检测MKMapView的平移+减速

1 个答案: