如何使用MKMapView放大/缩小iPhone应用程序中的最新地图 [英] How to recenter map in iPhone app on zoom in/out using MKMapView

问题描述

我正在开发iPhone应用程序，需要在其中显示特定纬度和图像的图像.在地图上的经度.要求是-即使用户在此地图屏幕上放大或缩小，地图控件也应在缩放后自动居中到同一纬度和纬度.长.我正在使用MKMapView.

I am developing an iPhone application in which I need to show an image at a specific Latitude & Longitude on a Map. The requirement is - Even if the user zooms in or out on this map screen, the map control should automatically center itself after the zoom, to the same Lat & Long. I am using MKMapView.

我试图浏览所有可用的文档.但是，我无法碰到任何回调或其他方法来实现目标.

I have tried to go through all available documentation. However, I could not come across any callback or other method that will allow me to achieve the objective.

一种选择是处理触摸事件.但是，我发现这是一个非常复杂的解决方案.我希望有一个更简单的替代方案.以上有什么想法吗?

One alternative is to handle touch events. However, I find that as a very complicated solution. And I hope that a simpler alternative exists. Any ideas on the above?

可以帮忙吗?任何示例将不胜感激.

Can you please help? Any example will be appreciated.

推荐答案

实施MKMapViewDelegate，然后尝试以下操作:

Implement MKMapViewDelegate and then try this:

- (void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated {
    [mapView setCenterCoordinate:locationManager.coordinate animated:NO];
}

用CLLocationManager的名称替换locationManager.

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