iOS定位获取经纬度以及计算位置

最新推荐文章于 2022-02-24 15:33:37 发布

原创最新推荐文章于 2022-02-24 15:33:37 发布 · 821 阅读

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本文介绍如何在iOS应用中获取设备的经纬度坐标，并探讨如何进行位置计算。通过设置plist文件中的相关属性，实现定位服务的开启与使用。

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//
//  ViewController.m
//  map
//
//  Created by mac on 15/7/23.
//  Copyright (c) 2015年 xin. All rights reserved.
//

#import "ViewController.h"
#import <CoreLocation/CoreLocation.h>

@interface ViewController ()<CLLocationManagerDelegate>
@property (nonatomic, strong)CLLocationManager *locMar;
@end

@implementation ViewController

- (CLLocationManager *)locMar{

    if (_locMar == nil) {
        self.locMar = [[CLLocationManager alloc] init];
        self.locMar.delegate = self;
    }
    return _locMar;
}
- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    
    if ([CLLocationManager locationServicesEnabled]) {
        
        [self.locMar startUpdatingLocation];
        self.locMar.distanceFilter = kCLDistanceFilterNone;
        self.locMar.desiredAccuracy = kCLLocationAccuracyBestForNavigation;
        [_locMar startUpdatingLocation];
        if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0){
            
            [_locMar requestWhenInUseAuthorization];  //调用了这句,就会弹出允许框了.
            
        }
    }else{
        NSLog(@"打开权限");
    }
    
    [self countDistance];
}

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations{

    CLLocation *loc = [locations firstObject];
    
    NSLog(@"纬度=%f，经度=%f",loc.coordinate.latitude,loc.coordinate.longitude);
    
}


//计算两个位置之间的距离
 -(void)countDistance
 {
     //根据经纬度创建两个位置对象
     CLLocation *loc1=[[CLLocation alloc]initWithLatitude:40 longitude:116];
     CLLocation *loc2=[[CLLocation alloc]initWithLatitude:41 longitude:116];
     //计算两个位置之间的距离
    CLLocationDistance distance=[loc1 distanceFromLocation:loc2];
     NSLog(@"(%@)和(%@)的距离=%fM",loc1,loc2,distance);
 }
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

在plist里面包含这两个属性