swift - didUpdateLocations 停止更新

Question

在我的 Swift 2.0 应用程序中，我使用 CoreLocation 检查用户是否在某个地方的 1 公里以内，如果在，我使用 AVFoundation 播放声音。

问题是，当我开始在 didUpdateLocations 中播放音频时，它会停止更新，即使在音频停止后也是如此。

这是我的代码:

func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {



    //Method called every time the location is updated by CoreLocation



    let userLocation = locations[0]


    var i = 0

    while i < coordinates.count {

        //Looping through all different coordinates



        let location = CLLocation(coordinate: coordinates[i], altitude: 0, horizontalAccuracy: kCLLocationAccuracyBest, verticalAccuracy: kCLLocationAccuracyBest, timestamp: NSDate())



        if userLocation.distanceFromLocation(location) < 1001 {


            //If the user is within 1000m of area[i]



            if player.rate == 0.0 {

                //Checks for the player already playing something else


                if let url = NSBundle.mainBundle().URLForResource(titles[i], withExtension: "mp3") {                            


                        player.removeAllItems()
                        player.insertItem(AVPlayerItem(URL: url), afterItem: nil)
                        player.play()






                        i = 10 //We had an area that was closer and the player is finished, so we stop the loop

                }


            }


        } else {

            //This location was further than 1000 meters, so we up the count and check the next coordinate

            i += 1

        }

    }

}

由于 didUpdateLocations 刚刚停止更新，当用户进入另一个区域时我无法播放音频。非常感谢您的帮助!

谢谢

Answer 1

如果 player.rate != 0.0 或“if let url”条件为假，您的 while 循环似乎会卡住，因为 i 值不会改变。我可能是错的，但根据查看此页面上的代码，情况似乎是这样。