调用 CLLocation 中的额外参数 'userinfo'

Question

下面的代码给我一个 Extra argument 'userinfo' in call 错误。我查看了 @27620493 and 27875005

的建议

class SOViewController : UIViewController {

var currentLocation : CLLocation!

func setCurrentLocation(currentLocation: CLLocation) {

    if (self.currentLocation == currentLocation) {
        return
    }
    self.currentLocation = currentLocation

    dispatch_async(dispatch_get_main_queue(), NSNotificationCenter.defaultCenter().postNotificationName(aName: SOCurrentLocationDidChangeNotification, object: nil, userInfo: ["kSOLocationKey" : currentLocation]))


}

考虑到 currentLocation 是可选的，我不确定为什么会收到此错误。

Answer 1

为此修改代码：

dispatch_async(dispatch_get_main_queue(), { () -> Void in
    NSNotificationCenter.defaultCenter().postNotificationName(SOCurrentLocationDidChangeNotification, object: nil, userInfo: ["kSOLocationKey" : currentLocation])
})

调用 CLLocation 中的额外参数 'userinfo'

Extra argument 'userinfo' in call CLLocation

userinfo

cllocation

ios

swift