#import <CoreLocation/CoreLocation.h>post
2.實現定位協議CLLocationManagerDelegateatom
@property(nonatomic,retain)CLLocationManager *locationManager;spa
4.開始定位3d
- (void)locatecode
{ci
// 推判定位操做是否被贊成it
if([CLLocationManager locationServicesEnabled]) {io
self.locationManager = [[CLLocationManager alloc] init] ;編譯
self.locationManager.delegate = self;ast
}else {
//提示用戶沒法進行定位操做
UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:
@"提示" message:@"定位不成功 ,請確認開啓定位" delegate:nil cancelButtonTitle:@"取消" otherButtonTitles:@"肯定", nil];
[alertView show];
}
// 開始定位
[self.locationManager startUpdatingLocation];
}
#pragma mark - CoreLocation Delegate
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
{
//此處locations存儲了持續更新的位置座標值,取最後一個值爲最新位置,假設不想讓其持續更新位置,則在此方法中獲取到一個值以後讓locationManager stopUpdatingLocation
CLLocation *currentLocation = [locations lastObject];
// 獲取當前所在的城市名
CLGeocoder *geocoder = [[CLGeocoder alloc] init];
//依據經緯度反向地理編譯出地址信息
[geocoder reverseGeocodeLocation:currentLocation completionHandler:^(NSArray *array, NSError *error)
{
if (array.count > 0)
{
CLPlacemark *placemark = [array objectAtIndex:0];
//將得到的所有信息顯示到label上
NSLog(@"%@",placemark.name);
//獲取城市
NSString *city = placemark.locality;
if (!city) {
//四大直轄市的城市信息沒法經過locality得到,僅僅能經過獲取省份的方法來得到(假設city爲空,則可知爲直轄市)
city = placemark.administrativeArea;
}
self.cityName = city;
}
else if (error == nil && [array count] == 0)
{
NSLog(@"No results were returned.");
}
else if (error != nil)
{
NSLog(@"An error occurred = %@", error);
}
}];
//系統會一直更新數據。直到選擇中止更新。因爲咱們僅僅需要得到一次經緯度就能夠,因此獲取以後就中止更新
[manager stopUpdatingLocation];
}
- (void)locationManager:(CLLocationManager *)manager
didFailWithError:(NSError *)error {
if (error.code == kCLErrorDenied) {
// 提示用戶出錯緣由。可按住Option鍵點擊 KCLErrorDenied的查看不少其它出錯信息,可打印error.code值查找緣由所在
}
}