MKMapView的setRegion速度

Question

如果我更改setRegion中的区域MKMapView，有没有办法设置该动画更改的速度或持续时间？我查看了文档和Google，但没有发现任何内容。

Answer 1

我可以通过编辑对问题的响应设置setRegion动画的持续时间 - Setting the zoom level for a MKMapView - 如下：

#import <MapKit/MapKit.h> 

@interface MKMapView (ZoomLevel) 

- (void)setCenterCoordinate:(CLLocationCoordinate2D)centerCoordinate 
        zoomLevel:(NSUInteger)zoomLevel 
        animated:(BOOL)animated; 
@end 



#import "MKMapView+ZoomLevel.h" 

@implementation MKMapView (ZoomLevel) 

#define ANIMATION_DURATION 0.5 
- (void)setCenterCoordinate:(CLLocationCoordinate2D)centerCoordinate 
         zoomLevel:(NSUInteger)zoomLevel animated:(BOOL)animated { 
    MKCoordinateSpan span = MKCoordinateSpanMake(0, 360/pow(2,zoomLevel)*self.frame.size.width/256); 
    [MKMapView animateWithDuration:ANIMATION_DURATION animations:^{ 
     [self setRegion:MKCoordinateRegionMake(centerCoordinate, span) animated:YES]; 
    }]; 
} 

Answer 2

下面是一个易于使用的斯威夫特扩展的情况下，有人绊倒在此未来

import MapKit 

extension MKMapView { 
    func animatedZoom(zoomRegion zoomRegion:MKCoordinateRegion, duration:NSTimeInterval) { 
     MKMapView.animateWithDuration(duration, delay: 0, usingSpringWithDamping: 0.6, initialSpringVelocity: 10, options: UIViewAnimationOptions.CurveEaseIn, animations: { 
     self.setRegion(zoomRegion, animated: true) 
     }, completion: nil) 
    } 
} 

UPD：雨燕3.0版本

extension MKMapView { 
    func animatedZoom(zoomRegion:MKCoordinateRegion, duration:TimeInterval) { 
     MKMapView.animate(withDuration: duration, delay: 0, usingSpringWithDamping: 0.6, initialSpringVelocity: 10, options: UIViewAnimationOptions.curveEaseIn, animations: { 
      self.setRegion(zoomRegion, animated: true) 
      }, completion: nil) 
    } 
}