didUpdateToLocation从未调用 [英] didUpdateToLocation never called

问题描述

我同时使用模拟器和设备进行测试，但是无论我做什么，从不调用didUpdateToLocation.我尝试在SIM卡中更改位置，然后关闭然后再打开手机上的位置服务，以强制手机搜索新位置...什么都没有.在我的viewDidLoad()中，我已经这样启动了CLLocationManager:

I am using both the simulator and my device to test this, but no matter what I do, didUpdateToLocation is never called. I have tried changing my location in the sim, turning off and then on again my location services on my phone to force the phone to search for a new location... nothing. In my viewDidLoad(), I have started the CLLocationManager as so:

CLLocationManager *manager = [[CLLocationManager alloc] init];

if (![CLLocationManager locationServicesEnabled])    
{
    UIAlertView *servicesDisabledAlert = [[UIAlertView alloc] initWithTitle:@"Location Services Disabled" message:@"You currently have all location services for this device disabled. If you proceed, you will be asked to confirm whether location services should be reenabled." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
    [servicesDisabledAlert show];

} else {
    manager.desiredAccuracy = kCLLocationAccuracyBest;

    manager.delegate = self;

    [manager startUpdatingLocation];


}

在更新位置方法中，我有这个:

and in the update location method I have this:

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

NSLog(@"NEW LOCATION! Accuracy:[%f]",newLocation.horizontalAccuracy);

}

有人知道为什么不称呼它吗?

Does anyone have any ideas why this isn't being called?

推荐答案

您是否在头文件中添加了位置委托?

Did you add location delegate in your header file ?

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