1.导入框架
Xcode中添加 CoreLocation.framework
2.info.plist文件添加描述
3.导入头文件
#import <CoreLocation/CoreLocation.h>
4.声明管理者和城市
{
NSString * currentCity; //当前城市
}
@property (nonatomic, strong) CLLocationManager *locationManager;
5.初始化
self.locationManager= [[CLLocationManageralloc]init];
self.locationManager.delegate=self;
[_locationManagerrequestWhenInUseAuthorization];
currentCity= [[NSStringalloc]init];
6.开始定位
判断定位是否打开
- (void)locate {
//判断定位功能是否打开
if ([CLLocationManager locationServicesEnabled]) { NSLog(@"开始定位");
[self.locationManager startUpdatingLocation];
}
定位未开启，去打开定位
UIAlertController* alertVC = [UIAlertControlleralertControllerWithTitle:@"允许\"定位\"提示"message:@"请在设置中打开定位"preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* ok = [UIAlertActionactionWithTitle:@"打开定位"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction*_Nonnullaction) {
//打开定位设置
NSURL*settingsURL = [NSURLURLWithString:UIApplicationOpenSettingsURLString];
[[UIApplicationsharedApplication]openURL:settingsURL];
}];
UIAlertAction* cancel = [UIAlertActionactionWithTitle:@"取消"style:UIAlertActionStyleCancelhandler:^(UIAlertAction*_Nonnullaction) {
}];
[alertVCaddAction:cancel];
[alertVCaddAction:ok];
[selfpresentViewController:alertVCanimated:YEScompletion:nil];
7.代理方法
-(void)locationManager:(CLLocationManager*)manager didUpdateLocations:(NSArray *)locations
1.获取经纬度
CLLocation*currentLocation = [locationslastObject];
CLLocationCoordinate2Dcoordinate = currentLocation.coordinate;
NSLog(@"纬度%f 经度%f",coordinate.latitude,coordinate.longitude);
2.获取城市
CLGeocoder* geoCoder = [[CLGeocoderalloc]init];
//反编码
[geoCoderreverseGeocodeLocation:currentLocationcompletionHandler:^(NSArray *_Nullableplacemarks,NSError*_Nullableerror) {
if(placemarks.count>0) {
CLPlacemark*placeMark = placemarks[0];
currentCity= placeMark.locality;
if(!currentCity) {
currentCity=@"无法定位当前城市";
}
//NSLog(@"%@",currentCity); //这就是当前的城市
//NSLog(@"%@",placeMark.name);//具体地址:xx市xx区xx街道
_cityLabel.text=currentCity;
_placeLabel.text= placeMark.name;
}
elseif(error ==nil&& placemarks.count==0) {
NSLog(@"No location and error return");
}
elseif(error) {
NSLog(@"location error: %@ ",error);
}
}];
