CLLocationManager授權消息未在iOS iOS 8.0.1中顯示

Question

我啟動應用程序時未顯示CLLocationManager授權消息，但已在設備應用程序顯示中簽入了位置服務，但沒有權限。

在xcode 5.1的ios 7中，一切正常，但在ios 8.0的xcode 6.0中，問題

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

if ([self.locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)])
{
    [self.locationManager requestWhenInUseAuthorization];
}
[self.locationManager startUpdatingLocation];

謝謝。

Answer 1

在iOS8中，您必須使用requestWhenInUseAuthorization或requestAlwaysAuthorization請求用戶授權訪問。

並且您已將帶有正確消息的鍵NSLocationWhenInUseUsageDescription或NSLocationAlwaysUsageDescription添加到info.plist

if ([self.locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)])
{
   [self.locationManager requestWhenInUseAuthorization];
}