小编Var*_*rry的帖子

我是Xcode和移动应用程序的新手.我正在做一个应用程序来查找当前位置.我在模拟器上测试了它并在控制台中得到了这条消息."无法在角落4处插入法律归属".它是什么意思,我该如何解决？

import UIKit
import Alamofire
import AlamofireImage
import MapKit
import CoreLocation

class MapVC: UIViewController

@IBOutlet weak var mapView: MKMapView!

var locationManager = CLLocationManager()
let authorizationStatus = CLLocationManager.authorizationStatus()
let regionRadius: Double = 1000

override func viewDidLoad() {
    super.viewDidLoad()

    mapView.delegate = self
    locationManager.delegate = self
    configureLocationServices()
}

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

@IBAction func centerMapPressed(_ sender: Any) {
    if authorizationStatus == .authorizedAlways || authorizationStatus == .authorizedWhenInUse{
        centerMapOnUserLocation()
    }
}

MKMapViewDelegate:

func centerMapOnUserLocation(){ …

注意到的奇怪的事情：当您使用setViewControllers：animated替换UINavigationController中的视图控制器堆栈时：动画过程中将显示后退按钮，动画完成后该按钮将消失。仅在iOS10（设备和模拟器）中找到，iOS8和9可以正常工作（无后退按钮）。有人遇到过这个问题吗？