Ios MapView，如何更改距离？

在mapview中，如何将其从A更改为B，如图所示

代码如下：

#define BE_Latitude 25.9444055
#define BE_longtitude -80.1229769

#define BEMSpan 0.100f;

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编辑

代码

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要更改缩放级别，请调整MKCoordinateSpan。我会帮你的

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您当前正在使用latitudeDelta和LongtudeDelta的位置坐标。

您确定这就是所有代码吗？这是android还是iOS，您的标签冲突。你能把代码贴在实际使用这些变量的地方吗？你想放大地图吗？除非你发布一些代码，否则没有人能帮助你。我发布的整个代码可能会有所帮助

#import "BEViewController.h"
#import "BENSObject.h"

@interface BEViewController ()

@end


#define BE_Latitude 25.9444055
#define BE_longtitude -80.1229769

#define BEMSpan 0.100f;

@implementation BEViewController
@synthesize BEMapView;

- (void)viewDidLoad {
    [super viewDidLoad];

    MKCoordinateRegion BERegion;

    //Center
    CLLocationCoordinate2D center;
    center.latitude = BE_Latitude;
    center.longitude = BE_longtitude;

    //Span
    MKCoordinateSpan span;
    span.latitudeDelta = BE_Latitude;
    span.longitudeDelta = BE_longtitude;

    BERegion.center = center;
    BERegion.span = span;

    //Set our map
    [BEMapView setRegion:BERegion animated:YES];


    CLLocationCoordinate2D BELocation;
    BELocation.latitude = BE_Latitude;
    BELocation.longitude = BE_longtitude;

    BENSObject * BEAnnitation = [[BENSObject alloc] init];
    BEAnnitation.coordinate = BELocation;
    BEAnnitation.title = @“C”;
    BEAnnitation.subtitle = @“D”;


    {[self.BEMapView addAnnotation:BEAnnitation];

    }
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end