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swift）でiPhoneのコンパスの向きを見つける

私はコンパスに似たアプリを作ろうとしていますが、顕著な違いがありますが、それらは重要ではありません。私が知る必要があるのは、電話の向きに関係なく、iPhoneにコンパスの向き（つまり、北の場合は0度）を与えるにはどうすればよいですか（つまり、テーブルやポートレートに平らに置かれている場合、同じ読み取り値が得られます同じ方向を向いている場合は誰かの手）

TL; DR1秒ごとに更新されるy軸を中心としたiPhoneの回転を取得するにはどうすればよいですか。

iosiphoneswiftlocationcompass
9
Matt Spoon

import CoreLocation

class ViewController: UIViewController ,CLLocationManagerDelegate {

    var lm:CLLocationManager!

    override func viewDidLoad() {
        super.viewDidLoad()

        lm = CLLocationManager()
        lm.delegate = self

        lm.startUpdatingHeading()
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }

    func locationManager(manager: CLLocationManager!, didUpdateHeading newHeading: CLHeading!) {
        println(newHeading.magneticHeading)
    }
}

詳細については、 https://developer.Apple.com/library/ios/documentation/CoreLocation/Reference/CLHeading_Class/ から入手できます。

22
Reming Hsu

Swift 3：

import UIKit
import CoreLocation

class ViewController: UIViewController, CLLocationManagerDelegate {

    let locationManager = CLLocationManager()

    override func viewDidLoad() {
        super.viewDidLoad()

       // Azimuth
        if (CLLocationManager.headingAvailable()) {
            locationManager.headingFilter = 1
            locationManager.startUpdatingHeading()
            locationManager.delegate = self
        }
    }

    func locationManager(_ manager: CLLocationManager, didUpdateHeading heading: CLHeading) {
        print (heading.magneticHeading)
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}
7
iLandes

Swift 3.

    import UIKit
    import CoreLocation

    class ViewController: UIViewController, CLLocationManagerDelegate {

    @IBOutlet weak var compass: UIImageView!
    @IBOutlet weak var angleLabel: UILabel!
    @IBOutlet weak var geographicalDirectionLabel: UILabel!

    var locationManager = CLLocationManager()

    override func viewDidLoad() {

        super.viewDidLoad()


        locationManager.delegate = self

        // Start location services to get the true heading.
        locationManager.distanceFilter = 1000
        locationManager.desiredAccuracy = kCLLocationAccuracyKilometer
        locationManager.startUpdatingLocation()

        //Start heading updating.
        if CLLocationManager.headingAvailable() {
            locationManager.headingFilter = 5
            locationManager.startUpdatingHeading()
        }




    }

    func locationManager(_ manager: CLLocationManager, didUpdateHeading newHeading: CLHeading) {

        if newHeading.headingAccuracy < 0 {
            return
        }

        // Get the heading(direction)
        let heading: CLLocationDirection = ((newHeading.trueHeading > 0) ?
            newHeading.trueHeading : newHeading.magneticHeading);
        UIView.animate(withDuration: 0.5) {
            let angle = CGFloat(heading).toRadians // convert from degrees to radians
            self.compass.transform = CGAffineTransform(rotationAngle: angle) // rotate the picture
        }
        print(heading)
        angleLabel.text = String(format: "%0.2f", heading)

       var strDirection = String()
        if(heading > 23 && heading <= 67){
            strDirection = "North East";
        } else if(heading > 68 && heading <= 112){
            strDirection = "East";
        } else if(heading > 113 && heading <= 167){
            strDirection = "South East";
        } else if(heading > 168 && heading <= 202){
            strDirection = "South";
        } else if(heading > 203 && heading <= 247){
            strDirection = "South West";
        } else if(heading > 248 && heading <= 293){
            strDirection = "West";
        } else if(heading > 294 && heading <= 337){
            strDirection = "North West";
        } else if(heading >= 338 || heading <= 22){
            strDirection = "North";
        }

        geographicalDirectionLabel.text = strDirection
    }
  }
3
Yogendra Singh