即使应用终止，iOS更新位置 [英] iOS update location even when app is terminated

问题描述

即使应用终止，我仍在尝试更新用户位置.我在.plist中添加了地图和背景模式->位置更新，并设置了一个在位置更新时将触发的本地通知.但它从未被解雇.我在 AppDelegat.h 中拥有这个:

I'm trying to update users location even when app is terminated. I added maps, and background mode --> Location update to my .plist, and I set an local notification that will fire when location is updated. But it never got fired. I have this in AppDelegat.h:

@interface AppDelegate : UIResponder <CLLocationManagerDelegate>{
    CLLocationManager *locationManager;
}

和 AppDelegate.m

- (BOOL)application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions {

    locationManager = [[CLLocationManager alloc] init];
    locationManager.delegate = self;
    locationManager.distanceFilter = kCLDistanceFilterNone;
    locationManager.desiredAccuracy = kCLLocationAccuracyBest;
    [locationManager requestAlwaysAuthorization];
    [locationManager startMonitoringSignificantLocationChanges];
}

---

    - (void)locationManager:(CLLocationManager *)manager 
    didUpdateLocations:(NSArray *)locations {

 UILocalNotification *notification = [[UILocalNotification alloc]init];
notification.repeatInterval = NSDayCalendarUnit;
[notification setAlertBody:@"Location update!"];
[notification setFireDate:[NSDate dateWithTimeIntervalSinceNow:1]];
[notification setTimeZone:[NSTimeZone  defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
    }

我在模拟器上以Freeway驱动器作为位置测试了此代码，但它不起作用.

I tested this code on simulator with Freeway drive as location and it doesn't work.

编辑

如果我将代码放在applicationDidEnterBackground下，授权请求将在打开它的第二秒关闭，因为我使用的是didFinishLaunchingWithOptions.我知道它的追踪位置是24小时，因为即使应用终止，也会有GPS符号.

If I put the code under applicationDidEnterBackground authorization request will close the second it's opened, because I'm using didFinishLaunchingWithOptions. I know it's tracking location 24h because there's GPS symbol even when app is terminated.

编辑2

在我的手机上对其进行测试后，该代码即可正常工作.它唤醒终止的应用程序并发送本地通知.它不适用于模拟器，但可以在现实生活中使用(设备):)

After testing it on my phone the code works. It wakes terminated app and sends local notification. It doesn't work on simulator but works in real life(device) :)

推荐答案

您似乎正在使用CLLocationManagerDelegate的不赞成使用的功能:

It looks like you're using CLLocationManagerDelegate's deprecated function:

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

相反，您应该实现

- (void)locationManager:(CLLocationManager *)manager 
    didUpdateLocations:(NSArray *)locations {
}

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