Question

使用位置管理器遇到一些问题。似乎locationManager.requestWhenInUseAuth不会停止应用程序流，并且在用户可以解除auth警报之前调用startUpdatingLocation。怎么避免这个？

我的应用程序加载了不可用GPS的默认值，所以我总是默认（因为即使＆＃34要调用此函数，也要调用此函数...？＆＃34;警报仍在显示）。

我的代码：

if ask{
        locationManager.requestWhenInUseAuthorization()
        self.manageLocation()
    }

func manageLocation(){
    if CLLocationManager.locationServicesEnabled() {

        switch(CLLocationManager.authorizationStatus()) {

        case .notDetermined, .restricted, .denied:
            // load default deck
            self.loadBlink(useDefault: true)

        case .authorizedAlways, .authorizedWhenInUse:
            locationManager.delegate = self
            locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
            locationManager.distanceFilter = 10.0
            locationManager.startUpdatingLocation()

        }
    } else {
        // load default deck
        self.loadBlink(useDefault: true)
    }
}

Answer 1

请求异步授权。它立即返回，你必须考虑到这一点。

Answer 2

将此添加到 info.plist

中

<key>NSLocationAlwaysUsageDescription</key>
<string>$(PRODUCT_NAME) would like to use your location.</string>
<key>NSLocationWhenInUseUsageDescription</key>
<string>$(PRODUCT_NAME) would like to use your location.</string>

设置var locationManager：

var locationManager:CLLocationManager!

viewDidLoad上的

称之为：

locationManager = [[CLLocationManager alloc] init]; // objective-c
locationManager = CLLocationManager() // swift (if i'm not wrong)

在致电requestWhenInUseAuth

之前，请先致电此startUpdatingLocation

CLLocationManager在用户授权Swift之前启动更新

2 个答案: