在iOS 11和Xcode 9.1中未调用CLLocationManager的didUpdateLocations委托

Question

您必须获取设备当前位置，为此我使用的是CLLocationManager类，但是didUpdateLocations没有调用。

我

我的代码和plist如下：

Answer 1

<key>NSLocationAlwaysUsageDescription</key>
    <string>Requires GPS to track persons</string>
    <key>NSLocationAlwaysAndWhenInUseUsageDescription</key>
    <string>Requires GPS to track persons</string>
    <key>NSLocationWhenInUseUsageDescription</key>
    <string>Requires GPS to track persons</string>
    <key>UIBackgroundModes</key>
    <array>
        <string>fetch</string>
        <string>location</string>
    </array>

在viewdidLoad中添加

locationManager.delegate = self
   self.locationManager.allowsBackgroundLocationUpdates = true
   self.locationManager.startUpdatingLocation()