Ios开发之定位CLLocationManager

版权声明: https://blog.csdn.net/JerehEdu/article/details/50685712

 Ios中的定位功能是通过 Core Location框架实现的。它和地图开发框架是相互独立的。在Core Location中主要实现了定位和地理编码的功能!

  下面我们就来介绍一下它的属性,方法和代理方法!

  属性:

desiredAccuracy:定位精度,是一个枚举类型

//kCLLocationAccuracyBest:最精确定位

//kCLLocationAccuracyNearestTenMeters:十米误差范围

//kCLLocationAccuracyHundredMeters:百米误差范围

//kCLLocationAccuracyKilometer:千米误差范围

//kCLLocationAccuracyThreeKilometers:三千米误差范围

  distanceFilter: 位置信息更新最小距离,只有移动大于这个距离才更新位置信息,默认为kCLDistanceFilterNone:不进行距离限制

  对象方法:

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startUpdatingLocation:开始定位追踪

stopUpdatingLocation : 停止定位追踪

startUpdatingHeading:开始方向追踪

stopUpdatingHeading:停止方向追踪

startMonitoringForRegion : 开始对某个区域进行追踪

 stopMonitoringForRegion : 停止对某区域进行追踪 

requestAlwaysAuthorization : 请求获得应用一直使用定位服务授权,注意使用此方法前要在info.plist中配置NSLocationAlwaysUsageDescription

requestWhenInUseAuthorization : 请求获得应用使用时的定位服务授权,注意使用此方法前在要在info.plist中配置NSLocationWhenInUseUsageDescription

  代理方法:

-(void)locationManager:(CLLocationManager*)manager didUpdateLocations:(NSArray *)locations; 位置发生改变后执行

       - (void)locationManager:(CLLocationManager *)manager

didUpdateHeading:(CLHeading *)newHeading; 导航方向发生变化后执行

- (void)locationManager:(CLLocationManager *)manager

    didEnterRegion:(CLRegion *)region;进入某个区域

- (void)locationManager:(CLLocationManager *)manager

    didExitRegion:(CLRegion *)region;走出某个区域之后执行

   开代码:

//
//  ViewController.m
//  location
//
//  Created by jerehedu on 15/12/23.
//  Copyright (c) 2015年 jerehedu. All rights reserved.
//

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

@interface ViewController ()<CLLocationManagerDelegate>{
    CLLocationManager *manager;
    CLGeocoder *geocoder;

}

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 375, 122)];
    label.font = [UIFont systemFontOfSize:16];
    [self.view addSubview:label];
    if ([CLLocationManager locationServicesEnabled]) {
        NSLog(@"定位服务已经打开");
    }
    //如果没有授权则请求用户授权
    if ([CLLocationManager authorizationStatus]==kCLAuthorizationStatusNotDetermined){
        [manager requestWhenInUseAuthorization];
    }else if([CLLocationManager authorizationStatus]==kCLAuthorizationStatusAuthorizedWhenInUse){
        manager = [[CLLocationManager alloc]init];
        [manager requestAlwaysAuthorization ];
        [manager  requestWhenInUseAuthorization];
        manager.delegate = self;
        manager.desiredAccuracy = kCLLocationAccuracyBest;//精准度
        //    定位精度,枚举类型:
        //    kCLLocationAccuracyBest:最精确定位
        //    CLLocationAccuracy kCLLocationAccuracyNearestTenMeters:十米误差范围
        //kCLLocationAccuracyHundredMeters:百米误差范围
        //kCLLocationAccuracyKilometer:千米误差范围
        //kCLLocationAccuracyThreeKilometers:三千米误差范围
        manager.distanceFilter = 1.0;//移动十米定位一次
        //    位置信息更新最小距离,只有移动大于这个距离才更新位置信息,默认为kCLDistanceFilterNone:不进行距离限制
        [manager startUpdatingLocation];
    }


    // Do any additional setup after loading the view, typically from a nib.
}
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations{
    CLLocation *loctaion = [locations firstObject];
    NSLog(@"%f  %f",loctaion.coordinate.latitude,loctaion.coordinate.longitude );
    /*[geocoder reverseGeocodeLocation:loctaion completionHandler:^(NSArray *placemarks, NSError *error) {
     CLPlacemark *placemark=[placemarks firstObject];

     CLLocation *location=placemark.location;//位置
     CLRegion *region=placemark.region;//区域
     NSDictionary *addressDic= placemark.addressDictionary;//详细地址信息字典,包含以下部分信息
     //        CLPlacemark *placemark = [placemarks firstObject];
     //        placemark.addressDictionary
     NSString *name=placemark.name;//地名
     NSString *thoroughfare=placemark.thoroughfare;//街道
     NSString *subThoroughfare=placemark.subThoroughfare; //街道相关信息,例如门牌等
     NSString *locality=placemark.locality; // 城市
     NSString *subLocality=placemark.subLocality; // 城市相关信息,例如标志性建筑
     NSString *administrativeArea=placemark.administrativeArea; // 州
     NSString *subAdministrativeArea=placemark.subAdministrativeArea; //其他行政区域信息
     NSString *postalCode=placemark.postalCode; //邮编
     NSString *ISOcountryCode=placemark.ISOcountryCode; //国家编码
     NSString *country=placemark.country; //国家
     NSString *inlandWater=placemark.inlandWater; //水源、湖泊
     NSString *ocean=placemark.ocean; // 海洋
     NSArray *areasOfInterest=placemark.areasOfInterest; //关联的或利益相关的地标
     }];*/
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

 

作者:杰瑞教育
出处: http://www.cnblogs.com/jerehedu/ 
版权声明:本文版权归 杰瑞教育 技有限公司和CSDN共有,欢迎转载,但未经作者同意必须保留此段声明,且在文章页面明显位置给出原文连接,否则保留追究法律责任的权利。 
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