苹果地图定位和显示区域

￡神魔★判官ぃ 2022-10-02 14:53 230阅读 0赞

//
    //  ViewController.m
    //  mapdemo001
    //
    //  Created by apple on 14-4-28.
    //  Copyright (c) 2014年 apple. All rights reserved.
    //
    
    #import "ViewController.h"
    #import <MapKit/MapKit.h>
    
    @interface ViewController () <MKMapViewDelegate>
    {
        MKMapView *_mapview;
    }
    @end
    
    @implementation ViewController
    
    - (void)viewDidLoad
    {
        [super viewDidLoad];
        // Do any additional setup after loading the view, typically from a nib.
    
        MKMapView *mapview = [[MKMapView alloc] initWithFrame:self.view.bounds];
        mapview.delegate = self;
        mapview.showsUserLocation = YES;
        [self.view addSubview:mapview];
    }
    
    - (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
    {
        if (_mapview) {
            return;
        }
        //设置中心位置
        [mapView setCenterCoordinate:userLocation.location.coordinate];
        //设置跨度
        MKCoordinateSpan span = MKCoordinateSpanMake(0.102988, 0.078449);
        //显示区域
        MKCoordinateRegion region = MKCoordinateRegionMake(userLocation.location.coordinate, span);
        
        //设置显示区域
        [mapView setRegion:region animated:YES];
        _mapview = mapView;
    }
    
    - (void)mapView:(MKMapView *)mapView regionWillChangeAnimated:(BOOL)animated
    {
        NSLog(@"%f %f",mapView.region.span.latitudeDelta,mapView.region.span.longitudeDelta);
    }
    
    - (void)didReceiveMemoryWarning
    {
        [super didReceiveMemoryWarning];
        // Dispose of any resources that can be recreated.
    }
    
    @end

转载于:https://www.cnblogs.com/damao2012/p/3698064.html