ios - iOS GPS位置跟踪

Question

我在Xcode上使用Objective C编程，当我的应用进入后台时似乎出现了问题。我有一个GPS跟踪应用程序，当用户运行该应用程序时它运行良好，但是当它在后台运行时，GPS不会逐步跟踪用户位置。它会暂停，然后在应用程序重新打开时自动找到该位置，但是我希望GPS一直运行，因此它不会像附件中的图片一样“走开” 1。

我已经在后台模式下打开了位置更新和后台抓取功能。

   #pragma mark - CLLocationManagerDelegate
   - (void)locationManager:(CLLocationManager *)manager didUpdateLocations:          (NSArray *)locations
   {

if (!self.timerPause) {
    for (CLLocation *newLocation in locations) {

        NSDate *eventDate = newLocation.timestamp;

        NSTimeInterval howRecent = [eventDate timeIntervalSinceNow];

        if (fabs(howRecent) < 10.0 && newLocation.horizontalAccuracy < 20) 

其他代码

     if (self.locationManager == nil) {
    self.locationManager = [[CLLocationManager alloc] init];
}
self.locationManager.delegate = self;
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
self.locationManager.activityType = CLActivityTypeAutomotiveNavigation;
self.locationManager.distanceFilter = 10; // meters
if ([self.locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]) {
    [self.locationManager requestWhenInUseAuthorization];
}
[self.locationManager startUpdatingLocation];

Answer 1

locationManager.allowsBackgroundLocationUpdates = YES;

将其添加到您设置了位置管理器的位置。它应该工作:)