今天给大家简单介绍一下iOS开发过程中会遇到的获取地理位置的问题,(话不多说进入正题)这里给大家讲解一下两种在APPdelegate获取地理位置的方法:
一:首先是用系统的方法获取地理位置:
1、 首先在AppDelegate.m导入
@import CoreLocation;
@import MapKit;
2、 声明协议:
<CLLocationManagerDelegate> //协议
3、声明属性:
@property(nonatomic) CLLocationManager *locationManager;
4、
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
self.locationManager = [[CLLocationManager alloc] init];
//判断异常
if (![CLLocationManager locationServicesEnabled]) {
NSLog(@"定位服务不可用!");
}
//定位精度
_locationManager.desiredAccuracy = kCLLocationAccuracyBest;
self.locationManager.delegate = self;
//启动定位
[_locationManager startUpdatingLocation];
....
return YES;
}
5、完成地图的代理方法:
#pragma mark -- CLLocationManagerDelegate
- (void)locationManager:(CLLocationManager *)manager
didUpdateLocations:(NSArray<CLLocation *> *)locations {
static BOOL isLocation = NO;
//地理位置逆编码
[self veverseGeLocation:manager.location completion:^(BOOL sucess, id content) {
if (sucess) {
//这里打印一下数据,方便查看
NSLog(@"%@",content);
//NSString * provnice = content[@"State"];
//NSString * city = content[@"City"];
//NSString * district = content[@"SubLocality"];
if (isLocation == YES) {
return ;
}
//如果你其他界面需要用到该地理位置;则直接将NSString 内容保存下来,需要在取出来
isLocation = YES;
[self.locationManager stopUpdatingLocation];
}else{
}
}];
//停止定位
[manager stopUpdatingLocation];
}
//地理位置逆编码:把经纬度信息编码成格式化的地理位置信息
- (void)veverseGeLocation:(CLLocation *)location completion:(void(^)(BOOL sucess, id content)) completion{
CLGeocoder *coder = [[CLGeocoder alloc]init];
//逆编码方法,后台线程执行
[coder reverseGeocodeLocation:location completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
BOOL sucess;
id content = nil ;
if (error) {
sucess = NO;
content = error.localizedDescription;
}
else{
sucess = YES;
CLPlacemark *placeMark = placemarks.firstObject;
content = placeMark.addressDictionary;
}
completion(sucess,content);
}];
}
二:首先是用高德的方法获取地理位置:用高德地图的话首先需要添加开发地图需要用到的库:对于库的导入依据开发人员的实际需求而定进行cocoapods导入或者手动拖入,前面流程基本都是跟随高德地图api 进行的,再次就不多重复介绍,详情各位可自行前往学习(链接:http://lbs.amap.com/api/ios-sdk/guide/create-project,下面就APPdelegate的内容进行讲解:
1、导入对应的头文件:
#import <AMapFoundationKit/AMapFoundationKit.h>
#import <AMapLocationKit/AMapLocationKit.h>
2、添加协议:
<AMapLocationManagerDelegate> //协议
3、声明属性:
@property (nonatomic,strong)AMapLocationManager * locationManager;
4、
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
[AMapServices sharedServices].apiKey = @"您的key";
[[AMapServices sharedServices] setEnableHTTPS:YES];
//创建地图manager
self.locationManager = [[AMapLocationManager alloc] init];//实例化位置管理器
[self.locationManager setDelegate:self];
[self.locationManager startUpdatingLocation];//启动定位
[self.locationManager setPausesLocationUpdatesAutomatically:NO];
[self.locationManager setDesiredAccuracy:kCLLocationAccuracyBest];//定位精度
self.locationManager.locatingWithReGeocode = YES;//连续定位是否返回逆地理信息,默认NO。
return YES;
}
5、代理方法:
#pragma mark - AMapLocationManager Delegate
- (void)amapLocationManager:(AMapLocationManager *)manager didUpdateLocation:(CLLocation *)location reGeocode:(AMapLocationReGeocode *)reGeocode
{
NSLog(@"location:{lat:%f; lon:%f; accuracy:%f}", location.coordinate.latitude, location.coordinate.longitude, location.horizontalAccuracy);
static BOOL isLocation = NO;
if (reGeocode != nil && isLocation == NO) {
// NSString * provnice = reGeocode.province;
// NSString * city = reGeocode.city;
// NSString * district = reGeocode.district;
// NSString *codeStr = reGeocode.adcode;//地理adcode
//如果你其他界面需要用到该地理位置;则直接将NSString 内容保存下来,需要在取出来
isLocation = YES;
}
}
以上就是两者获取地理位置的方法,需要说明的是:如果开发项目中后面会用到地理位置的adcode的时候,本人建议用第二种方法,因为第一种目前不能获取到该adcode,或者本人技术不到位还没有找到解决的办法,望各位大神多多谅解和给出指导意见,谢谢!