iOS Location Service

@implementation IFLocationManager@synthesize locationServiceFinished = _locationServiceFinished;@synthesize locationServiceFailed = _locationServiceFailed;- (id)init{    self = [super init];    if (self) {    }        return self;}#pragma mark -#pragma mark - 单例方法+ (instancetype)manager{    static IFLocationManager *core = nil;    static dispatch_once_t onceToken;    dispatch_once(&onceToken, ^{        core = [IFLocationManager new];    });    return core;}#pragma mark -#pragma mark - 启动定位服务- (void)startLocation{    if (locationManager) {        locationManager.delegate = nil;        locationManager = nil;    }        if ([CLLocationManager locationServicesEnabled]) {        locationManager = [[CLLocationManager alloc] init];        locationManager.desiredAccuracy = kCLLocationAccuracyHundredMeters;        //不需要太高精度，费电        locationManager.delegate = self;          [locationManager startUpdatingLocation];    }}#pragma mark -#pragma mark - 停止定位服务- (void)stopLocation{    [locationManager stopUpdatingLocation];    locationManager = nil;}#pragma mark -#pragma mark - 定位服务 - 更新地理位置回调方法- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations {    CLLocation * newLocation = [locations lastObject];//最后一次位置是当前位置    CLGeocoder *clGeoCoder = [[CLGeocoder alloc] init];    CLGeocodeCompletionHandler handle = ^(NSArray *placemarks,NSError *error)    {                for (CLPlacemark *placeMark in placemarks)        {            NSDictionary *addressDic = placeMark.addressDictionary;            __unused NSString *state = [addressDic objectForKey:@"State"];            __unused NSString *city = [addressDic objectForKey:@"City"];            __unused NSString *subLocality = [addressDic objectForKey:@"SubLocality"];            __unused NSString *street = [addressDic objectForKey:@"Street"];            __unused NSString *latitude = [NSString stringWithFormat:@"%f", newLocation.coordinate.latitude];            __unused NSString *longitude = [NSString stringWithFormat:@"%f", newLocation.coordinate.longitude];                        if (_locationServiceFinished) {                NSDictionary *values = [NSDictionary dictionaryWithObjectsAndKeys:                                        state,LocationValue_State,                                        city,LocationValue_City,                                        subLocality,LocationValue_SubLocality,                                        street,LocationValue_Street,                                        latitude,LocationValue_Latitude,                                        longitude,LocationValue_Longitude,                                        placeMark.administrativeArea,LocationValue_AdministrativeArea,                                        nil];                                _locationServiceFinished(values);                                UIAlertView *a = [[UIAlertView alloc] initWithTitle:@"12345" message:@"s" delegate:nil cancelButtonTitle:@"c" otherButtonTitles:nil, nil];                [a show];            }                        [self stopLocation];        }    };        [clGeoCoder reverseGeocodeLocation:newLocation completionHandler:handle];}#pragma mark -#pragma mark - 定位服务 - 位置授权状态变化回调方法- (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status {    switch (status) {                case kCLAuthorizationStatusNotDetermined :            if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) {                if ([locationManager respondsToSelector:@selector(requestAlwaysAuthorization)]) {                    //iOS8新增 需要在info.plist中添加字段NSLocationAlwaysUsageDescription，值为空即可                    [locationManager requestAlwaysAuthorization];                }                                if ([locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]) {                    //iOS8新增 需要在info.plist中添加字段NSLocationWhenInUseUsageDescription，值为空即可                    [locationManager requestWhenInUseAuthorization];                }            }                        break;            case kCLAuthorizationStatusRestricted:            NSLog(@"kCLAuthorizationStatusRestricted");            break;                    case kCLAuthorizationStatusDenied :            NSLog(@"kCLAuthorizationStatusDenied");            break;                    case kCLAuthorizationStatusAuthorizedAlways:                    case kCLAuthorizationStatusAuthorizedWhenInUse:                        break;                    default:            break;    }}#pragma mark -#pragma mark - 定位服务 - 获取地理位置数据失败回调方法- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {        if (error) {        if (error.code==1){            //不允许定位            // 定位服务没有得到您的授权，默认定位北京！            if(_locationServiceFailed){                _locationServiceFailed(LocationServiceError_NOAuthorize);            }        }else{            //定位失败，默认定位北京！            if(_locationServiceFailed){                _locationServiceFailed(LocationServiceError_LocationError);            }                    }    }        [self stopLocation];    }@end