我們很多時候做項目的時候都選用通過手機獲取定位，然后傳數據給后臺，這是iOS8根據經緯度顯示地名的demo

　　//1.導入框架

　　//

　　// NearByViewController.m

　　// nearDemo

　　//

　　// Created by apple on 14/12/5.

　　// Copyright (c) 2014年 youdianshang. All rights reserved.

　　//

　　#import

　　#import

　　@interface NearByViewController ()

　　{

　　NSUserDefaults *defaluts;

　　NSString * jingduStr;

　　NSString *weiduStr;

　　NSString *LocationAddress;

　　}

　　@property(nonatomic,retain)CLLocationManager *locationManager;

　　@property(strong,nonatomic)UILabel *positionLabel;

　　/*

　　經緯度相關設置

　　*/

　　-(void)getLocationAll

　　{

　　self.locationManager = [[CLLocationManageralloc]init];

　　_locationManager.delegate =self;

　　_locationManager.desiredAccuracy =kCLLocationAccuracyBest;

　　_locationManager.distanceFilter =10;

　　[_locationManagerrequestAlwaysAuthorization];//添加這句

　　[_locationManagerstartUpdatingLocation];

　　}

　　/*

　　//通過經緯度得到當前地理位置

　　-(void)change{

　　defaluts=[NSUserDefaultsstandardUserDefaults];

　　CLLocationCoordinate2D coordinate;

　　coordinate.latitude = [[NSStringstringWithFormat:@"%@",jingduStr]floatValue];

　　coordinate.longitude = [[NSStringstringWithFormat:@"%@",weiduStr]floatValue];

　　CLLocation *newLocation=[[CLLocationalloc]initWithLatitude:coordinate.latitudelongitude: coordinate.longitude];

　　CLGeocoder *geocoder=[[CLGeocoderalloc] init];

　　[geocoder reverseGeocodeLocation:newLocationcompletionHandler:^(NSArray* placemarks,NS

　　{

　　MKPlacemark*placemark = [placemarks objectAtIndex:0];

　　LocationAddress = [NSStringstringWithFormat:@"%@%@%@%@", placemark.locality, placemark.subLocality,placemark.thoroughfare, placemark.subThoroughfare];

　　[defaluts setObject:LocationAddress forKey:@"address"];

　　NSLog(@"終極目標:1:%@2:%@3:%@4:%@", placemark.locality, placemark.subLocality,placemark.thoroughfare,placemark.subThoroughfare);

　　}];

　　#pragma mark--實現CLLocationManagerDelegate的代理方法,獲取地理位置(鑌)===========================================================================

　　//(1)獲取到位置數據，返回的是一個CLLocation的數組，一般使用其中的一個

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

　　{

　　CLLocation *currLocation = [locations lastObject];

　　NSLog(@"經度=%f緯度=%f高度=%f", currLocation.coordinate.latitude, currLocation.coordinate.longitude, currLocation.altitude);

　　jingduStr =[NSStringstringWithFormat:@"%f", currLocation.coordinate.latitude];