LBS,即Location Based Services,基于位置服务，用于定位、导航等功能，比如地图应用、订外卖等的app就需要这个功能。
在这里我使用的是高德LBS开放平台，地址：http://lbs.amap.com/
进入网站，首先注册并认证为开发者，然后为你的每个APP申请一个key,其中安全码（Bundle Identifier）通过Xcode切换到General标签，查看Bundle Identifier。
使用第三方服务，我们可以使用自动配置，这里就要使用到Cocoapods。CocoaPods是一个用来帮助我们管理第三方依赖库的工具。它可以解决库与库之间的依赖关系，下载库的源代码，同时通过创建一个Xcode的workspace来将这些第三方库和我们的工程连接起来，供我们开发使用。使用CocoaPods的目的是让我们能自动化的、集中的、直观的管理第三方开源库。
如果需要升级ruby,使用homebrew安装：brew install ruby
另外一种方法升级ruby: sudo gem update --system
安装Cocoapods教程：
gem sources -l
gem sources --remove https://rubygems.org/
gem sources -a https://ruby.taobao.org/
gem sources -l
sudo gem install -n /usr/local/bin cocoapods
pod setup
创建Podfile:
cd /project
touch Podfile
或者直接cd到工程目录，然后pod init ，在Podfile里直接添加也行。
编辑Podfile文件：
source 'https://github.com/CocoaPods/Specs.git'
platform:ios,'7.0' #手机系统
#pod 'AMap3DMap' #3D地图SDK
pod 'AMap2DMap' #2D地图SDK(2D和3D不能同时使用)
pod 'AMapSearch' #搜索服务SDK 以下是额外补充
#platform :ios
#pod 'Reachability', '~> 3.0.0'
#pod 'SBJson', '~> 4.0.0' #platform :ios, '7.0'
#pod 'AFNetworking', '~> 2.0'
标准格式：
source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '9.0'
use_frameworks!
target 'AlamofireDemo' do
pod 'Alamofire'
pod 'SwiftyJSON'
end
然后到工程目录，输入命令pod install，如果出现-bash: pod: command not found，输入sudo gem install -n /usr/local/bin cocoapods即可解决。
如果如果pod update / pod install 卡在：Updating local specs repositories，
等待即可，或者可以使用 “pod install --verbose --no-repo-update” 进行下载。
更新：如果你又添加新的三方库，可以在Podfile文件中继续添加，然后再终端输入pod update,然后CocoaPods就会重新帮你导入.
然后通过打开xcworkspace文件打开安装有cocoapods的工程
以下是我Controller.m的核心代码，仅供参考：
#import "ViewController.h"
#import <MAMapKit/MAMapKit.h>
#import <AMapSearchKit/AMapSearchAPI.h>
#define APIKey @"你申请的key" @interface ViewController ()<MAMapViewDelegate,AMapSearchDelegate>
{
MAMapView *_mapView;
AMapSearchAPI *_search;
CLLocation *_currentLocation;
UIButton *_locationButton;
} @end @implementation ViewController - (void)initControls
{
_locationButton = [UIButton buttonWithType:UIButtonTypeCustom];
_locationButton.frame = CGRectMake(, CGRectGetHeight(_mapView.bounds)-,,);
_locationButton.autoresizingMask = UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin;
_locationButton.backgroundColor = [UIColor whiteColor];
_locationButton.layer.cornerRadius = ;
[_locationButton addTarget:self action:@selector(locateAction) forControlEvents:UIControlEventTouchUpInside];
[_locationButton setImage:[UIImage imageNamed:@"location_no"] forState:UIControlStateNormal];
[_mapView addSubview:_locationButton]; }
//搜索服务
- (void)initSearch
{
_search = [[AMapSearchAPI alloc]initWithSearchKey:APIKey Delegate:self];
} //修改用户定位模式
- (void)locateAction
{
if (_mapView.userTrackingMode != MAUserTrackingModeFollow) {
[_mapView setUserTrackingMode:MAUserTrackingModeFollow animated:YES];
}
}
//地理编码搜索请求
- (void)reGeoAction
{
if(_currentLocation)
{
AMapReGeocodeSearchRequest *request = [[AMapReGeocodeSearchRequest alloc]init];
request.location = [AMapGeoPoint locationWithLatitude:_currentLocation.coordinate.latitude longitude:_currentLocation.coordinate.longitude];
[_search AMapGeocodeSearch:request];
}
} - (void)searchRequest:(id)request didFailWithError:(NSError *)error
{
NSLog(@"request :%@, error :%@",request,error);
}
- (void)onReGeocodeSearchDone:(AMapGeocodeSearchRequest *)request response:(AMapReGeocodeSearchResponse *)response
{
NSLog(@"response :%@",response);
NSString *title = response.regeocode.addressComponent.city;
if (title.length == ) {
title = response.regeocode.addressComponent.province;
}
_mapView.userLocation.title = title;
_mapView.userLocation.subtitle = response.regeocode.formattedAddress;
} //用户代理方法
- (void)mapView:(MAMapView *)mapView didChangeUserTrackingMode:(MAUserTrackingMode)mode animated:(BOOL)animated
{
//修改定位按钮状态
if(mode == MAUserTrackingModeNone)
{
[_locationButton setImage:[UIImage imageNamed:@"location_no"] forState:UIControlStateNormal];
}
else{
[_locationButton setImage:[UIImage imageNamed:@"location_yes"] forState:UIControlStateNormal];
}
} //记录当前所在位置
- (void)mapView:(MAMapView *)mapView didUpdateUserLocation:(MAUserLocation *)userLocation updatingLocation:(BOOL)updatingLocation
{
NSLog(@"userLocation: %@",userLocation.location);
_currentLocation = [userLocation.location copy]; } - (void)mapView:(MAMapView *)mapView didSelectAnnotationView:(MAAnnotationView *)view
{
//选中定位annotation的时候进行逆地理编码查询
if ([view.annotation isKindOfClass:[MAUserLocation class]])
{
[self reGeoAction];
}
} //初始化地图
- (void)initMapView
{
[MAMapServices sharedServices].apiKey = APIKey;
_mapView = [[MAMapView alloc]initWithFrame:CGRectMake(, , CGRectGetWidth(self.view.bounds), CGRectGetHeight(self.view.bounds))];
//设置地图的代理和两个附件的位置
_mapView.delegate = self;
_mapView.compassOrigin = CGPointMake(_mapView.compassOrigin.x, );
_mapView.scaleOrigin = CGPointMake(_mapView.scaleOrigin.x, );
[self.view addSubview:_mapView];
//打开用户定位
_mapView.showsUserLocation = YES; } - (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
[self initMapView];
[self initSearch];
[self initControls];
} - (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
} @end
运行结果：
如果你有更多的API接口想要实现，你可以去高德LBS开放平台去看看开发文档，可以作进一步深入和开发。
github地址：https://github.com/AbelSu131/HelloAmap