检测平移+减速MKMapView [英] Detecting panning + decelerate of MKMapView

问题描述

我正在尝试捕获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

I'm trying to capture panning and the 'end of scrolling' on an MKMapView. Panning is easy to do with a gesture recognizer. However, MKMapView doesn't seem to implement a UIScrollViewDelegate in iOS 6. That makes the solution in Is there way to limit MKMapView maximum zoom level? not work.

有什么想法吗?理想情况下，我将像这样利用UIScrollViewDelegate:

Thoughts? Ideally I would have just leveraged the UIScrollViewDelegate as such:

-(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

inside a class extending MKMapView

@interface MyMapView : MKMapView <UIScrollViewDelegate, UIGestureRecognizerDelegate>

但是在iOS 6中不起作用.我在MKMapViewDelegate中看不到足够的东西.

but that won't work in iOS 6. I can't see anything sufficient in MKMapViewDelegate.

推荐答案

正在回答自己.我实现了MKMapViewDelegate的所有方法，看来

Answering myself. I implemented all of MKMapViewDelegate's methods and it seems that

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

被平移调用，并且

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

减速停止后立即调用

.

is called as soon as deceleration stops (and not before).

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