iOS自动定位

iOS自动定位

---

需要在info.plist配置使用隐私数据
<key>NSLocationAlwaysUsageDescription</key>
<string>App需要您的同意,才能始终访问位置</string>
<key>NSLocationUsageDescription</key>
<string>App需要您的同意,才能访问位置</string>
<key>NSLocationWhenInUseUsageDescription</key>
<string>App需要您的同意,才能在使用期间访问位置</string>

#import <CoreLocation/CoreLocation.h>
@interface ViewController ()<CLLocationManagerDelegate>
@property (nonatomic,strong) CLLocationManager * locationManager;
@end

@implementation ViewController
#pragma mark - ###### 定位 快捷键 mark
#pragma mark - ###### 定位 快捷键 mark
- (void)locate {
    
    
    if([CLLocationManager locationServicesEnabled] && [CLLocationManager authorizationStatus] == kCLAuthorizationStatusDenied) {
        NSLog(@"没打开");
//        UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"打开定位开关" message:@"请点击确认打开定位服务" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];
//        [alertView show];
        NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
        if ([[UIApplication sharedApplication] canOpenURL:url]) {
            [[UIApplication sharedApplication] openURL:url];
            
        }
    }else{
        //判断定位功能是否打开
        if ([CLLocationManager locationServicesEnabled]) {
            self.locationManager = [[CLLocationManager alloc] init];
            [self.locationManager requestAlwaysAuthorization];
            self.locationManager.delegate = self;
            [self.locationManager startUpdatingLocation];
        }else{
            [self.locationManager requestAlwaysAuthorization];
        }
    }
    
    
}
#pragma mark CoreLocation delegate

//定位失败则执行此代理方法
//定位失败弹出提示框,点击"打开定位"按钮,会打开系统的设置,提示打开定位服务
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {
    UIAlertController * alertVC = [UIAlertController alertControllerWithTitle:@"允许\"定位\"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) {
        //打开定位设置
        NSURL *settingsURL = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
        [[UIApplication sharedApplication] openURL:settingsURL];
    }];
    UIAlertAction * cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
        
    }];
    [alertVC addAction:cancel];
    [alertVC addAction:ok];
    
}
//定位成功
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations {
    [self.locationManager stopUpdatingLocation];
    CLLocation *currentLocation = [locations lastObject];
    // 广州经纬度
//        CLLocationDegrees la = 23.128594;
//        CLLocationDegrees lo = 113.238879;
//        currentLocation = [[CLLocation alloc] initWithLatitude:la longitude:lo];
    // 上海经纬度
//        CLLocationDegrees la = 31.23;
//        CLLocationDegrees lo = 121.47;
//        currentLocation = [[CLLocation alloc] initWithLatitude:la longitude:lo];
    
    //  茅台镇
//    CLLocationDegrees la = 27.8657885049;
//    CLLocationDegrees lo = 106.3723754883;
//    currentLocation = [[CLLocation alloc] initWithLatitude:la longitude:lo];
    CLGeocoder * geoCoder = [[CLGeocoder alloc] init];
    
    //反编码
    __weak typeof(self) weakSelf = self;
    [geoCoder reverseGeocodeLocation:currentLocation completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
        if (placemarks.count > 0) {
            CLPlacemark *placeMark = placemarks[0];
            
            // 国家
            NSString *country = placeMark.addressDictionary[@"Country"];
            // 省
            NSString *province = placeMark.addressDictionary[@"State"];
            // 城市
            NSString *city = placeMark.addressDictionary[@"City"];
            // 区、县
            NSString *zone = placeMark.addressDictionary[@"SubLocality"];
            // 最小地址
            NSString *detail = placeMark.addressDictionary[@"Name"];
            // 行政区划的接到、镇、乡
            NSString *street = nil;
            // 完全地址
            NSString *name = [((NSArray *)placeMark.addressDictionary[@"FormattedAddressLines"]) firstObject];
            if ([name hasSuffix:detail]) {
                street = detail;
                detail = @"";
            }else{
                NSRange fromRange = [name rangeOfString:placeMark.addressDictionary[@"SubLocality"]];
                NSRange toRange = [name rangeOfString:placeMark.addressDictionary[@"Street"]];
                
                NSInteger from = fromRange.location+fromRange.length;
                NSInteger to = toRange.location;
                NSInteger length = to-from;
                NSRange streetRange = NSMakeRange(from, length);
                // 行政区划的接到、镇、乡
                street = [name substringWithRange:streetRange];
            }
            
            
            if (!placeMark.locality) {
                NSLog(@"无法定位当前城市");
            }
            NSLog(@"%@",placeMark.name);//具体地址:  xx市xx区xx街道
        }
        else if (error == nil && placemarks.count == 0) {
            NSLog(@"No location and error return");
        }
        else if (error) {
            NSLog(@"location error: %@ ",error);
        }
        
    }];
}
@end