定期更新iOS后台位置

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- (void)applicationDidEnterBackground:(UIApplication *)application
    self.bgTask = [[UIApplication sharedApplication] beginBackgroundTaskWithExpirationHandler:^{
        NSLog(@"ending background task");
        [[UIApplication sharedApplication] endBackgroundTask:self.bgTask];
        self.bgTask = UIBackgroundTaskInvalid;
    self.timer = [NSTimer scheduledTimerWithTimeInterval:60
                                                  target:self.locationManager
                                                selector:@selector(startUpdatingLocation)
                                                userInfo:nil
                                                 repeats:YES];
}

- (void)locationManager:(CLLocationManager *)manager 
    didUpdateToLocation:(CLLocation *)newLocation 
           fromLocation:(CLLocation *)oldLocation {
    NSLog(@"%@", newLocation);
    NSLog(@"background time: %f", [UIApplication sharedApplication].backgroundTimeRemaining);
    [self.locationManager stopUpdatingLocation];
}

<key>UIBackgroundModes</key>
<array>
    <string>location</string>
</array>

[self.locationManager setDesiredAccuracy:kCLLocationAccuracyThreeKilometers];
[self.locationManager setDistanceFilter:99999];

- (void) changeAccuracy {
    [self.locationManager setDesiredAccuracy:kCLLocationAccuracyBest];
    [self.locationManager setDistanceFilter:kCLDistanceFilterNone];
}

-(void) initLocationManager    
    // Create the manager object
    self.locationManager = [[[CLLocationManager alloc] init] autorelease];
    _locationManager.delegate = self;
    // This is the most important property to set for the manager. It ultimately determines how the manager will
    // attempt to acquire location and thus, the amount of power that will be consumed.
    _locationManager.desiredAccuracy = 45;
    _locationManager.distanceFilter = 100;
    // Once configured, the location manager must be "started".
    [_locationManager startUpdatingLocation];
}

- (void)applicationWillResignActive:(UIApplication *)application {
     _isBackgroundMode = YES;
    [_locationManager stopUpdatingLocation];
    [_locationManager setDesiredAccuracy:kCLLocationAccuracyBest];
    [_locationManager setDistanceFilter:kCLDistanceFilterNone];
    _locationManager.pausesLocationUpdatesAutomatically = NO;
    _locationManager.activityType = CLActivityTypeAutomotiveNavigation;
    [_locationManager startUpdatingLocation];
 }

-(void) locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
//  store data
    CLLocation *newLocation = [locations lastObject];
    self.userLocation = newLocation;
   //tell the centralManager that you want to deferred this updatedLocation
    if (_isBackgroundMode && !_deferringUpdates)
        _deferringUpdates = YES;
        [self.locationManager allowDeferredLocationUpdatesUntilTraveled:CLLocationDistanceMax timeout:10];
}

- (void) locationManager:(CLLocationManager *)manager didFinishDeferredUpdatesWithError:(NSError *)error {
     _deferringUpdates = NO;
     //do something 
}

let manager = APScheduledLocationManager(delegate: self)
manager.startUpdatingLocation(interval: 170, acceptableLocationAccuracy: 100)

//
//  ViewController.swift
//  DemoStackLocation
//  Created by iOS Test User on 02/01/18.
import UIKit
import CoreLocation
class ViewController: UIViewController {
    var locationManager: CLLocationManager = CLLocationManager()
    override func viewDidLoad() {
        super.viewDidLoad()
        startLocationManager()
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    internal func startLocationManager(){
        locationManager.requestAlwaysAuthorization()
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.delegate = self
        locationManager.allowsBackgroundLocationUpdates = true
        locationManager.startUpdatingLocation()
extension ViewController : CLLocationManagerDelegate {
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]){
        let location = locations[0] as CLLocation
        print(location.coordinate.latitude) // prints user's latitude
        print(location.coordinate.longitude) //will print user's longitude
        print(location.speed) //will print user's speed
}

locationManager.allowsBackgroundLocationUpdates = true

<key>NSLocationAlwaysUsageDescription</key>
 <string>I want to get your location Information in background</string>
<key>UIBackgroundModes</key>
 <array><string>location</string> </array>

//The Location Manager must have a strong reference to it.
_locationManager = [[CLLocationManager alloc] init];
_locationManager.delegate = self;
//Request Always authorization (iOS8+)
if ([_locationManager respondsToSelector:@selector(requestAlwaysAuthorization)]) { [_locationManager requestAlwaysAuthorization];
//Allow location updates in the background (iOS9+)
if ([_locationManager respondsToSelector:@selector(allowsBackgroundLocationUpdates)]) { _locationManager.allowsBackgroundLocationUpdates = YES;
[_locationManager startUpdatingLocation];

self.locationManager.delegate = self
if #available (iOS 8.0,*) {

定期更新iOS后台位置

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