飞行模式开启时，CLLocationManager如何获取位置 [英] how is it that CLLocationManager gets a location when Airplane Mode is ON

问题描述

我的应用程序使用CLLocationManager从设备获取位置更新。

My app uses CLLocationManager to get location updates from the device.

我假设设备处于飞行模式时，我不会获得位置更新。但是我愿意。

I had assumed that when the device was in Airplane Mode, I would not get location updates. But I do.

我之所以认为这是因为苹果公司表示飞机模式会关闭Wifi，蜂窝，蓝牙和GPS。请参阅： http://support.apple.com/kb/ht1355

The reason I assumed this is because Apple says that Airplane mode turns off Wifi, Cellular, Bluetooth, and GPS. See: http://support.apple.com/kb/ht1355

那么，如何使用看来合理的坐标来获取位置更新？

So, how is it that I'm getting a location update with a coordinate that seems reasonable?

推荐答案

我已经开发了一个大量使用用户位置的应用程序，因此必须检查这种情况和其他情况。

I've developed an app that heavily uses the user location, so I had to check this and other situations.

我了解到，当所有服务都关闭时（蓝牙，Wi-Fi，蜂窝数据），
CLLocationManager返回最新的已知位置，因此，在这种情况下，即使设备处于飞行模式，它也会返回一个位置。

I've learned that when all the services are off (Bluetooth, Wi-Fi, Cell Data) CLLocationManager returns the latest known location, so, in this case, even if the device in Airplane mode it will return a location.

您可以尝试获取位置信息，打开飞行模式，然后再远离那里，再询问位置。

You can try this by getting your location, turn Airplane mode on and then go far from there, ask the location again.

TL; DR：不是。它返回最新的已知位置。

TL; DR: It doesn't. It returns the latest known location.

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