第一步.添加库 CoreLocation.framework
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第二步.在info.plist文件里添加 这两个描述 获得用户的允许权限
1.Privacy - Location When In Use Usage Description -> 是否允许此App在使用期间访问你的位置?
2.Privacy - Location Always Usage Description -> 是否允许此App永久访问你的位置?
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第三步.开始写代码了
头文件和代理
#import <CoreLocation/CoreLocation.h>
@interface ViewController ()<CLLocationManagerDelegate>
@property (nonatomic,strong ) CLLocationManager *locationManager;//定位服务
@property (nonatomic,copy) NSString *currentCity;//城市
@property (nonatomic,copy) NSString *strLatitude;//经度
@property (nonatomic,copy) NSString *strLongitude;//维度
- (void)viewDidLoad {
[super viewDidLoad];
[self locatemap];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)locatemap{
if ([CLLocationManager locationServicesEnabled]) {
_locationManager = [[CLLocationManager alloc]init];
_locationManager.delegate = self;
[_locationManager requestAlwaysAuthorization];
_currentCity = [[NSString alloc]init];
[_locationManager requestWhenInUseAuthorization];
_locationManager.desiredAccuracy = kCLLocationAccuracyBest;
_locationManager.distanceFilter = 5.0;
[_locationManager startUpdatingLocation];
}
}
#pragma mark - 定位失败
-(void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error{
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"提示" message:@"请在设置中打开定位" preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *ok = [UIAlertAction actionWithTitle:@"打开定位" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
NSURL *settingURL = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
[[UIApplication sharedApplication]openURL:settingURL];
}];
UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
}];
[alert addAction:cancel];
[alert addAction:ok];
[self presentViewController:alert animated:YES completion:nil];
}
#pragma mark - 定位成功
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations{
[_locationManager stopUpdatingLocation];
CLLocation *currentLocation = [locations lastObject];
CLGeocoder *geoCoder = [[CLGeocoder alloc]init];
//当前的经纬度
NSLog(@"当前的经纬度 %f,%f",currentLocation.coordinate.latitude,currentLocation.coordinate.longitude);
//这里的代码是为了判断didUpdateLocations调用了几次 有可能会出现多次调用 为了避免不必要的麻烦 在这里加个if判断 如果大于1.0就return
NSTimeInterval locationAge = -[currentLocation.timestamp timeIntervalSinceNow];
if (locationAge > 1.0){//如果调用已经一次，不再执行
return;
}
//地理反编码 可以根据坐标(经纬度)确定位置信息(街道 门牌等)
[geoCoder reverseGeocodeLocation:currentLocation completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
if (placemarks.count >0) {
CLPlacemark *placeMark = placemarks[0];
_currentCity = placeMark.locality;
if (!_currentCity) {
_currentCity = @"无法定位当前城市";
}
//看需求定义一个全局变量来接收赋值
NSLog(@"当前国家 - %@",placeMark.country);//当前国家
NSLog(@"当前城市 - %@",_currentCity);//当前城市
NSLog(@"当前位置 - %@",placeMark.subLocality);//当前位置
NSLog(@"当前街道 - %@",placeMark.thoroughfare);//当前街道
NSLog(@"具体地址 - %@",placeMark.name);//具体地址
NSString *message = [NSString stringWithFormat:@"%@,%@,%@,%@,%@",placeMark.country,_currentCity,placeMark.subLocality,placeMark.thoroughfare,placeMark.name];
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:nil message:message delegate:self cancelButtonTitle:nil otherButtonTitles:@"好", nil];
[alert show];
}else if (error == nil && placemarks.count){
NSLog(@"NO location and error return");
}else if (error){
NSLog(@"loction error:%@",error);
}
}];
}
希望这些工作中的节点总结能帮助到大家 谢谢
