10分钟应用程序关闭后，位置服务运行背景

Question

我的位置服务应用程序运行后台进程工作但是10分钟后应用程序关闭。我正在使用以下步骤

1）在.plist文件中手动添加密钥

<key>Required background modes</key>
<array>
        <string>App registers for location updates</string>
</array>

2）代码是

 self.locationManager = [[CLLocationManager alloc] init];
[locationManager startUpdatingLocation];
locationManager.delegate = self;
locationManager.distanceFilter = kCLDistanceFilterNone;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation    *)newLocation fromLocation:(CLLocation *)oldLocation {

   NSString *latVal = [[NSString alloc] initWithFormat:@"%f", newLocation.coordinate.latitude];
    NSString *lonVal = [[NSString alloc] initWithFormat:@"%f", newLocation.coordinate.longitude];

}

我需要经常更新后台流程而不关闭申请，请帮帮我。

Answer 1

在didFinishLaunchingWithOptions我们这个。

self.locationManager = [[CLLocationManager alloc] init];
[locationManager startMonitoringSignificantLocationChanges];
locationManager.delegate = self;

这将确保您的应用程序即使被杀死也会被调用。