????????iOS系統(tǒng)自帶定位，用CLLocationManager就可以輕松的實(shí)現(xiàn)定位的操作，獲得的是一組經(jīng)緯度，當(dāng)然，也可以根據(jù)給出的經(jīng)緯度獲取相應(yīng)的省份、城市、街道等信息，下面就看一個(gè)根據(jù)經(jīng)緯度獲得城市的demo：

????????因?yàn)楂@取經(jīng)緯度需要CLLocationManager類(lèi)，而這個(gè)類(lèi)包含在CoreLocation框架中，獲取城市信息需要mapKit框架，所以需要首先在工程中導(dǎo)入這兩個(gè)框架：

導(dǎo)入框架的步驟：選擇1.target——2.Build Phases——3.Link Binary With Libraries ——4.點(diǎn)擊“+”號(hào)：如圖所示步驟：

點(diǎn)擊加號(hào)之后在搜索框里輸入相應(yīng)的框架，即可搜索到，如圖所示：

下面就該寫(xiě)代碼了，首先在視圖控制器中導(dǎo)入：

#import?<CoreLocation/CoreLocation.h> #import?<MapKit/MapKit.h>

兩個(gè)頭文件，然后.m中的具體代碼如下：

#import?"ANNViewController.h"@interface?ANNViewController?() @property?(strong,?nonatomic)?IBOutlet?UILabel?*longitude; @property?(strong,?nonatomic)?IBOutlet?UILabel?*latitude;@property?(strong,?nonatomic)?IBOutlet?UILabel?*location; @property?(strong,?nonatomic)?CLLocationManager?*locationManager;@end@implementation?ANNViewController-?(void)viewDidLoad {[super?viewDidLoad];//?Do?any?additional?setup?after?loading?the?view,?typically?from?a?nib.self.view.backgroundColor?=?[UIColor?whiteColor];//創(chuàng)建CLLocationManager對(duì)象self.locationManager?=?[[CLLocationManager?alloc]?init];//設(shè)置代理為自己self.locationManager.delegate?=?self;} -?(IBAction)locationButton:(UIButton?*)sender?{[self.locationManager?startUpdatingLocation]; }-?(void)locationManager:(CLLocationManager?*)managerdidUpdateToLocation:(CLLocation?*)newLocationfromLocation:(CLLocation?*)oldLocation {//將經(jīng)度顯示到label上self.longitude.text?=?[NSString?stringWithFormat:@"%lf",?newLocation.coordinate.longitude];//將緯度現(xiàn)實(shí)到label上self.latitude.text?=?[NSString?stringWithFormat:@"%lf",?newLocation.coordinate.latitude];//?獲取當(dāng)前所在的城市名CLGeocoder?*geocoder?=?[[CLGeocoder?alloc]?init];//根據(jù)經(jīng)緯度反向地理編譯出地址信息[geocoder?reverseGeocodeLocation:newLocation?completionHandler:^(NSArray?*array,?NSError?*error){if?(array.count?>?0){CLPlacemark?*placemark?=?[array?objectAtIndex:0];//將獲得的所有信息顯示到label上self.location.text?=?placemark.name;//獲取城市NSString?*city?=?placemark.locality;if?(!city)?{//四大直轄市的城市信息無(wú)法通過(guò)locality獲得，只能通過(guò)獲取省份的方法來(lái)獲得（如果city為空，則可知為直轄市）city?=?placemark.administrativeArea;}NSLog(@"city?=?%@",?city);}else?if?(error?==?nil?&&?[array?count]?==?0){NSLog(@"No?results?were?returned.");}else?if?(error?!=?nil){NSLog(@"An?error?occurred?=?%@",?error);}}];//系統(tǒng)會(huì)一直更新數(shù)據(jù)，直到選擇停止更新，因?yàn)槲覀冎恍枰@得一次經(jīng)緯度即可，所以獲取之后就停止更新[manager?stopUpdatingLocation]; }

主要就是直轄市的城市獲得需要拐個(gè)彎，iOS7添加了一個(gè)新的方法，代替了上面這個(gè)方法：

-?(void)locationManager:(CLLocationManager?*)managerdidUpdateLocations:(NSArray?*)locations {NSLog(@"longitude?=?%f",?((CLLocation?*)[locations lastObject]).coordinate.longitude);NSLog(@"latitude?=?%f",?((CLLocation?*)[locations?lastObject]).coordinate.latitude);[manager?stopUpdatingLocation]; }

后面的處理和上面的方法一樣，大家可以看一下。

另外還有一些CLGeocoder的屬性如下：

@property?(nonatomic,?readonly)?NSDictionary?*addressDictionary;//?address?dictionary?properties @property?(nonatomic,?readonly)?NSString?*name;?//?eg.?Apple?Inc. @property?(nonatomic,?readonly)?NSString?*thoroughfare;?//?street?address,?eg.?1?Infinite?Loop @property?(nonatomic,?readonly)?NSString?*subThoroughfare;?//?eg.?1 @property?(nonatomic,?readonly)?NSString?*locality;?//?city,?eg.?Cupertino @property?(nonatomic,?readonly)?NSString?*subLocality;?//?neighborhood,?common?name,?eg.?Mission?District @property?(nonatomic,?readonly)?NSString?*administrativeArea;?//?state,?eg.?CA @property?(nonatomic,?readonly)?NSString?*subAdministrativeArea;?//?county,?eg.?Santa?Clara @property?(nonatomic,?readonly)?NSString?*postalCode;?//?zip?code,?eg.?95014 @property?(nonatomic,?readonly)?NSString?*ISOcountryCode;?//?eg.?US @property?(nonatomic,?readonly)?NSString?*country;?//?eg.?United?States @property?(nonatomic,?readonly)?NSString?*inlandWater;?//?eg.?Lake?Tahoe @property?(nonatomic,?readonly)?NSString?*ocean;?//?eg.?Pacific?Ocean @property?(nonatomic,?readonly)?NSArray?*areasOfInterest;?//?eg.?Golden?Gate?Park

完整的工程如下：

附件下載地址：https://github.com/winann/TestLocation.git

轉(zhuǎn)載于:https://blog.51cto.com/winann/1532528

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